JP2013221371A - Structure for reinforcing masonry wall and method for reinforcing masonry wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a masonry wall reinforcing structure and a masonry that are easy to construct, have a large construction area per unit time, are low cost, and can reduce the forward spread of an inclined land even when a masonry block collapses Provide a wall reinforcement method.
SOLUTION: A masonry wall reinforcing structure 1 is a reinforcement structure of a masonry wall 2 in which a masonry block 2a is stacked on the front surface of an inclined land L. The elastic member 3 is installed in front of the masonry block 2a and has elasticity. And a fixing member 4 for fixing to the inclined land L.
[Selection] Figure 1

Description

  The present invention relates to a masonry wall reinforcement structure and a masonry wall reinforcement method for an existing masonry wall.

  Conventionally, as shown in FIG. 18, in a masonry wall 100 in which a masonry block 101 is piled on the front surface of an inclined land L, an upper concrete board 102 extending to the upper part, and a leg concrete board 103 extending to a leg part, A holding plate 104 whose upper and lower ends are fixed to the concrete plates 102 and 103, a plurality of holding piles 105 suspended from the upper concrete plate 102 until reaching the slope L, and the holding plate 104 are fixed to the holding pile 105. Masonry wall 100 comprising an anchor 106, a plurality of foundation piles 107 suspended from the leg concrete board 103 until reaching the slope L, and a net 108 made of a wire mesh or a geogrid fixed by a holding plate 104. A reinforcing structure is disclosed (see Patent Document 1).

Japanese Patent No. 4190360

  However, in the reinforcement structure for the masonry wall 100 described in Patent Document 1, for example, when installing on the side of the track, the track must be closed at night, and the workable area per unit time is small. It becomes expensive.

  Further, in the reinforcing structure for the masonry wall 100, the masonry wall 100 is reinforced by the rigidity of the restraining plate 104 and the net member 108. Therefore, an earthquake occurs and a load exceeding the rigidity of the restraining plate 104 and the net member 108 is generated. In such a case, as shown in FIG. 19, the piled-up masonry block 101 collapses while spreading in front of the inclined land L. For example, when the masonry wall 100 is constructed on the side of the track, a long-time restoration work is required.

  The object of the present invention is to solve such problems, and the construction is simple, the construction area per unit time is large, and the cost is low, even when the masonry block collapses. It is an object of the present invention to provide a masonry wall reinforcement structure and a masonry wall reinforcement method capable of reducing the forward spread of an inclined land.

  The masonry wall reinforcement structure according to the present invention is a masonry wall reinforcement structure in which masonry blocks are stacked on the front surface of an inclined land, and an elastic member that is installed in front of the masonry block and has elasticity, and the elastic member is fixed to the inclined land. And a fixing member to be provided.

  Further, the fixing member includes a first fixing member that fixes an upper portion of the elastic member and a second fixing member that fixes a lower portion of the elastic member.

  Further, the first fixing member fixes the expansion / contraction member at an upper inclined portion of the inclined land, and the second fixing member fixes the expansion / contraction member at a lower inclined portion of the inclined land.

  Moreover, it has a driving pin driven in the said masonry block in the state which penetrated the said expansion-contraction member.

  Further, the driving pin is driven more into the masonry block at the lower part of the slope than the masonry block at the upper part of the slope.

  Further, the elastic member is formed of a single sheet.

  The stretchable member is a belt-like sheet, and includes a first stretchable sheet installed in the vertical direction and a second stretchable sheet installed in the horizontal direction, and the first stretchable sheet and the second stretchable sheet. A sheet is characterized by being installed so as to cross each part of the masonry block.

  Furthermore, the masonry wall reinforcement method according to the present invention is a method for reinforcing a masonry wall in which masonry blocks are stacked on the front surface of an inclined ground. The step of installing a stretchable elastic member in front of the masonry block; And a step of fixing to the inclined land by a fixing member.

  The step of fixing the expansion / contraction member to the inclined land with the fixing member includes a step of fixing the upper portion of the expansion / contraction member by the first fixing member and a step of fixing the lower portion of the expansion / contraction member by the second fixing member. It is characterized by that.

  Moreover, it has the process of driving | running a driving pin into the said masonry block in the state which penetrated the said expansion-contraction member.

  According to the masonry wall reinforcement structure according to the present invention, in the masonry wall reinforcement structure in which the masonry blocks are stacked on the front surface of the sloped land, the stretchable member installed in front of the masonry block and the stretchable member on the sloped ground. It is easy to install, has a large workable area per unit time, and is low in cost. Even when the masonry block collapses, it is possible to reduce the forward spread of the sloped land. It becomes.

  Further, since the fixing member includes a first fixing member that fixes the upper part of the elastic member and a second fixing member that fixes the lower part of the elastic member, the elastic member can be firmly fixed. Become.

  The first fixing member fixes the expansion / contraction member at an upper inclined portion of the inclined land, and the second fixing member fixes the expansion / contraction member at a lower inclined portion of the inclined land. Since the second fixing member is installed on the slope, installation areas above and below the slope are not necessary.

  Moreover, since it has a driving pin driven into the masonry block in a state of penetrating the elastic member, the elastic member can be installed more easily.

  Further, since the driving pin is driven more into the masonry block at the lower part of the slope than the masonry block at the upper part of the slope, the expansion / contraction member is easily and firmly installed.

  Moreover, since the said expansion-contraction member consists of one sheet | seat, it becomes possible to install more easily.

  The stretchable member is a belt-like sheet, and includes a first stretchable sheet installed in the longitudinal direction and a second stretchable sheet installed in the lateral direction, and the first stretchable sheet and the second stretchable sheet. Are installed so as to cross each part of the masonry block, so that it is possible to suppress the masonry block more firmly when the masonry block collapses.

It is sectional drawing of the masonry wall reinforcement structure of 1st Embodiment. It is a front view of the masonry wall reinforcement structure of 1st Embodiment. It is a figure which shows the state which the masonry block of 1st Embodiment collapsed. It is sectional drawing of the masonry wall reinforcement structure of 2nd Embodiment. It is a front view of the masonry wall reinforcement structure of 2nd Embodiment. It is sectional drawing of the masonry wall reinforcement structure of 3rd Embodiment. It is a front view of the masonry wall reinforcement structure of 3rd Embodiment. It is sectional drawing of the masonry wall reinforcement structure of 4th Embodiment. It is a front view of the masonry wall reinforcement structure of 4th Embodiment. It is sectional drawing of the masonry wall reinforcement structure of 5th Embodiment. It is a front view of the masonry wall reinforcement structure of 5th Embodiment. It is a front view of the masonry wall reinforcement structure of the other example of 5th Embodiment. It is sectional drawing of the masonry wall reinforcement structure of 6th Embodiment. It is a front view of the masonry wall reinforcement structure of 6th Embodiment. It is a front view of the masonry wall reinforcement structure of the other example of 6th Embodiment. It is sectional drawing of the masonry wall reinforcement structure of 7th Embodiment. It is a perspective view of the masonry wall reinforcement structure of 7th Embodiment. It is a figure which shows the prior art. It is a figure which shows the prior art.

  The masonry wall reinforcing structure of this embodiment will be described below.

  Drawing 1 is a sectional view of the masonry wall reinforcement structure of a 1st embodiment. FIG. 2 is a front view of the masonry wall reinforcing structure of the first embodiment. Furthermore, FIG. 3 is a figure which shows the state which the masonry block of 1st Embodiment collapsed.

  The masonry wall reinforcing structure 1 according to the first embodiment includes a stretchable member 3 installed in front of a masonry block 2a and a stretchable member 3 that is stretched on a sloped ground L. A first fixing member 4 for fixing to an upper ground La of L, a second fixing member 5 for fixing the telescopic member 3 to a lower ground Lb of the inclined land L, the head remaining on the front surface of the telescopic member 3, and the telescopic member 3 And a driving pin 6 that is driven into the masonry block 2a.

  The stretchable member 3 is made of a belt-like mesh, and it is preferable to use a stretchable resin material such as polypropylene as an example. The expansion / contraction member 3 is fixed by the first fixing member 4 on the upper side and the second fixing member 5 on the lower side, fixed by the first expansion / contraction sheet 3a installed in the vertical direction and the driving pin 6, and installed in the horizontal direction. Second elastic sheet 3b.

  Accordingly, as shown in FIG. 2, when viewed from the front, the first stretchable sheet 3a extends in the vertical direction, and the second stretchable sheet 3b extends in the lateral direction so as to cross each part of the masonry block 2a. Installed. In the first embodiment, the second stretchable sheet 3b is installed so as to partially overlap the first stretchable sheet 3a. However, the first stretchable sheet 3b partially overlaps the second stretchable sheet 3b. You may install the elastic sheet 3a.

  Thus, the elastic member 3 is formed from a belt-like sheet, and includes the first elastic sheet 3a installed in the vertical direction and the second elastic sheet 3b installed in the horizontal direction, and the first elastic sheet 3a Since the second stretchable sheet 3b is installed so as to cover each part of the masonry block 2a, it is possible to more strongly suppress the masonry block 2a when it collapses.

The first fixing member 4 includes a first fixing pile 4a having a first screw portion 4a ₁ at the upper portion, and a first plate member 4b made of iron or the like for supporting the first fixing pile 4a through a hole (not shown). When, having a first nut 4c screwed to the first screw portion 4a ₁ of the first fixing pile 4a, the.

The second fixing member 5 includes a second fixing pile 5a having a second screw portion 5a ₁ on the upper portion, and a second plate member 5b made of iron or the like that supports the second fixing pile 5a in a state where the second fixing pile 5a is passed through a hole (not shown). When, a second nut 5c screwed into the second threaded portion 5a ₁ of the second fixing pile 5a, the.

  The driving pin 6 is a lighter and shorter pile than the first fixing pile 4a and the second fixing pile 5a, and can be driven more easily. The upper part is preferably formed in a flange shape like a nail or a thumbtack. At least one driving pin 6 is preferably driven into one masonry block 2a.

  In the masonry wall reinforcement method for reinforcing the masonry wall reinforcement structure 1 of the first embodiment, the masonry wall 2 in which the masonry blocks 2a are stacked on the front surface of the inclined land L, the stretchable members 3 having elasticity are placed on the masonry block 2a. A step of fixing the expansion / contraction member 3 to the upper ground La of the inclined land L by the first fixing member 4, and a step of fixing the elastic member 3 to the lower ground Lb of the inclined land L by the second fixing member 5. And a step of driving the driving pin 6 into the masonry block 2a while leaving the head portion in front of the elastic member 3 and penetrating the elastic member 3.

  Specifically, the step of installing the expansion / contraction member 3 includes a step of fixing the first expansion / contraction sheet 3a by the first fixing member 4 and the second fixing member 5, and a second block of the second expansion / contraction sheet 3b by the driving pin 6. Fixing to 2a. The first elastic sheet 3a is preferably installed before the second elastic sheet 3b, but the second elastic sheet 3b may be installed before the first elastic sheet 3a.

The step of installing the first fixing member 4 includes the step of installing the first plate member 4b in the upper place La of the inclined land L and the first fixing pile 4a penetrating through the first plate member 4b and the first elastic sheet 3a. It is allowed and a step of inserting the slope L, a step of screwing the first nut 4c to the first threaded portion 4a ₁ of the first fixing pile 4a, the.

The step of installing the second fixing member 5 includes a step of installing the second plate member 5b in the lower land Lb of the inclined land L, and a step of passing the second fixing pile 5a through the second plate member 5b and inserting it into the inclined land L. When, and a step of screwing the second nut 5c, to the second threaded portion 5a ₁ of the second fixing pile 5a.

  Thus, by using the masonry wall reinforcement structure 1 of the first embodiment, the construction is simple, the workable area per unit time is large, and the construction can be performed at low cost. Moreover, as shown in FIG. 3, even if the masonry block 2a collapses, the expansion / contraction member 3 and the masonry block 2a are not separated from each other, and the expansion / contraction member 3 can prevent the masonry block 2a from falling, and to the front of the inclined ground. It is possible to reduce the spread of.

  In addition, you may form the expansion-contraction member 3 of 1st Embodiment with one sheet | seat.

  FIG. 4 is a cross-sectional view of the masonry wall reinforcing structure of the second embodiment. FIG. 5 is a front view of the masonry wall reinforcing structure of the second embodiment.

  The masonry wall reinforcing structure 1 according to the second embodiment includes a stretchable member 3 installed in front of the masonry block 2a and a stretchable member 3 on the sloped land L. A first fixing member 4 that fixes the upper portion La of L, and a second fixing member 5 that fixes the elastic member 3 to the lower portion Lb of the inclined land L.

  The stretchable member 3 is made of a single sheet-like mesh, and it is preferable to use a stretchable resin material such as polypropylene as an example. The elastic member 3 is fixed by a plurality of first fixing members 4 on the upper side and a plurality of second fixing members 5 on the lower side. Therefore, as shown in FIG. 5, when viewed from the front, the elastic member 3 is installed so as to cover the masonry block 2a.

  Since the elastic member 3 is formed of a single sheet-like mesh, it can be installed more easily.

  The first fixing member 4 and the second fixing member 5 are the same as in the first embodiment.

  In the masonry wall reinforcement method for reinforcing the masonry wall reinforcement structure 1 of the first embodiment, the masonry wall 2 in which the masonry blocks 2a are stacked on the front surface of the inclined land L, the stretchable members 3 having elasticity are placed on the masonry block 2a. A step of fixing the expansion / contraction member 3 to the upper ground La of the inclined land L by the first fixing member 4, and a step of fixing the elastic member 3 to the lower ground Lb of the inclined land L by the second fixing member 5. And having.

  The process of installing the first fixing member 4 and the second fixing member 5 is the same as that in the first embodiment.

  As described above, by using the masonry wall reinforcing structure 1 of the first embodiment, the construction is further simplified, the construction possible area per unit time is large, and the construction can be performed at low cost. Similarly to the first embodiment shown in FIG. 3, even if the masonry block 2 a collapses, the elastic member 3 can suppress the masonry block 2 a from dropping and reduce the spread of the sloped area forward. It becomes possible.

  It is a pile that is lighter and shorter than the first fixed pile 4a and the second fixed pile 5a, and is driven into the masonry block 2a while leaving the head in front of the elastic member 3 and penetrating the elastic member 3. The insert pin 6 may be used.

  FIG. 6 is a cross-sectional view of the masonry wall reinforcing structure of the third embodiment. FIG. 7 is a front view of the masonry wall reinforcing structure of the third embodiment.

  The masonry wall reinforcing structure 1 according to the third embodiment includes a stretchable member 3 installed in front of the masonry block 2a and a stretchable member 3 on the sloped land L. A first fixing member 4 to be fixed on the upper ground La of L, and a driving pin 6 which is driven into the masonry block 2a while leaving the head on the front surface of the elastic member 3 and penetrating the elastic member 3;

  The stretchable member 3 is made of a belt-like mesh, and it is preferable to use a stretchable resin material such as polypropylene as an example. The expansion / contraction member 3 is fixed by the first fixing member 4 on the upper side and the driving pin 6 on the lower side, fixed by the driving pin 6 and installed in the vertical direction, and installed in the horizontal direction. A second elastic sheet 3b. Therefore, as shown in FIG. 7, when viewed from the front, the first elastic sheet 3a extends in the vertical direction, and the second elastic sheet 3b extends in the horizontal direction so as to cross each other so as to cover a part of the masonry block 2a. Installed. In the first embodiment, the second stretchable sheet 3b is installed so as to partially overlap the first stretchable sheet 3a. However, the first stretchable sheet 3b partially overlaps the second stretchable sheet 3b. You may install the elastic sheet 3a.

The first fixing member 4 includes a first fixing pile 4a having a first screw portion 4a ₁ at the upper portion, and a first plate member 4b made of iron or the like for supporting the first fixing pile 4a through a hole (not shown). When, having a first nut 4c screwed to the first screw portion 4a ₁ of the first fixing pile 4a, the.

  The driving pin 6 is a lighter and shorter pile than the first fixing pile 4a and the second fixing pile 5a, and can be driven more easily. The upper part is preferably formed in a flange shape like a nail or a thumbtack. At least one driving pin 6 is preferably driven into one masonry block 2a. Moreover, it is preferable that the driving pins 6 are configured to drive a large amount into the side and lower masonry blocks 2a. In particular, it is preferable that the most side and lowermost masonry blocks 2a be driven most.

  Thus, the 1st expansion-contraction sheet 3a and the 2nd expansion-contraction sheet 3b as the expansion-contraction member 3 are installed firmly by setting it as the structure which drives many driving pins 6 into the side or the lower masonry block 2a.

  In the masonry wall reinforcement method for reinforcing the masonry wall reinforcement structure 1 of the third embodiment, the masonry wall 2 in which the masonry blocks 2a are stacked on the front surface of the sloping land L, the stretchable members 3 having elasticity are placed on the masonry block 2a. Masonry with the first fixing member 4 fixing the expansion / contraction member 3 to the upper ground La of the inclined land L, leaving the head in front of the expansion / contraction member 3 and penetrating the expansion / contraction member 3 And driving the driving pin 6 into the block 2a.

  Specifically, the step of installing the stretchable member 3 includes a step of fixing the first stretchable sheet 3a by the first fixing member 4, and a step of fixing the second stretchable sheet 3b to the masonry block 2a by the driving pin 6. Have. In addition, although it is preferable to install the 1st elastic sheet 3a ahead of the 2nd elastic sheet 3b, you may install the 2nd elastic sheet 3b ahead of the 1st elastic sheet 3a.

  The process of installing the first fixing member 4 is the same as that in the first embodiment.

  As described above, by using the masonry wall reinforcement structure 1 of the third embodiment, since a large number of driving pins 6 are driven into the lower masonry block 2a, there is no need to install the second fixing member 5, It is possible to reduce the installation area in front of and below the inclined land L, and further, the construction is simple, the construction possible area per unit time is large, and the construction can be performed at low cost. Similarly to the first embodiment shown in FIG. 3, even if the masonry wall reinforcement structure 1 collapses, the elastic member 3 can suppress the fall of the masonry block 2a, and reduce the forward spread of the sloped land. It becomes possible.

  In addition, you may form the expansion-contraction member 3 of 3rd Embodiment with one sheet | seat.

  FIG. 8 is a cross-sectional view of the masonry wall reinforcing structure of the fourth embodiment. FIG. 9 is a front view of the masonry wall reinforcing structure of the fourth embodiment.

  The masonry wall reinforcement structure 1 according to the fourth embodiment includes a telescopic wall 3 in which a masonry block 2a is stacked on a front surface of an inclined land L, an elastic member 3 that is installed in front of the masonry block 2a, and has an elastic property. A first fixing member 4 for fixing to an upper ground La of L, a second fixing member 5 for fixing the telescopic member 3 to a lower ground Lb of the inclined land L, the head remaining on the front surface of the telescopic member 3, and the telescopic member 3 And a driving pile 7 that is driven into a gap between adjacent masonry blocks 2a in a penetrating state.

  The elastic member 3, the first fixing member 4, and the second fixing member 5 are installed in the same manner as in the first embodiment.

  The driving pile 7 is a lighter and shorter pile than the first fixing pile 4a and the second fixing pile 5a, and can be driven into the gap between the masonry blocks 2a more easily. The upper part is preferably formed in a flange shape like a nail or a thumbtack.

  In the masonry wall reinforcement method for reinforcing the masonry wall reinforcement structure 1 of the fourth embodiment, the masonry wall 2 in which the masonry blocks 2a are stacked on the front surface of the inclined land L, the stretchable members 3 having elasticity are provided on the masonry block 2a. A step of fixing the expansion / contraction member 3 to the upper ground La of the inclined land L by the first fixing member 4, and a step of fixing the elastic member 3 to the lower ground Lb of the inclined land L by the second fixing member 5. And a step of driving the driving pile 7 into the masonry block 2a while leaving the head in front of the elastic member 3 and penetrating the elastic member 3.

  Specifically, the step of installing the stretchable member 3 includes a step of fixing the first stretchable sheet 3 a by the first fixing member 4 and the second fixing member 5, and a masonry block of the second stretchable sheet 3 b by the driving pile 7. Fixing to 2a. The first elastic sheet 3a is preferably installed before the second elastic sheet 3b, but the second elastic sheet 3b may be installed before the first elastic sheet 3a.

  The process of installing the first fixing member 4 and the second fixing member 5 is the same as that in the first embodiment.

  Thus, by using the masonry wall reinforcement structure 1 of the fourth embodiment, the construction is simple, the construction possible area per unit time is large, and the construction at a low cost is possible. Similarly to the first embodiment shown in FIG. 3, even if the masonry block 2 a collapses, the elastic member 3 can suppress the masonry block 2 a from dropping and reduce the spread of the sloped area forward. It becomes possible.

  FIG. 10 is a cross-sectional view of the masonry wall reinforcing structure of the fifth embodiment. FIG. 11 is a front view of the masonry wall reinforcing structure of the fifth embodiment. Furthermore, FIG. 12 is a front view of a masonry wall reinforcing structure of another example of the fifth embodiment.

  The masonry wall reinforcement structure 1 according to the fifth embodiment includes a telescopic wall 3 in which a masonry block 2a is stacked on the front surface of an inclined land L, an elastic member 3 that is installed in front of the masonry block 2a and has elasticity, and the elastic member 3 is disposed on an inclined ground. A first fixing member 4 that fixes the upper inclined portion of L, and a second fixing member 5 that fixes the elastic member 3 to the lower inclined portion of the inclined land L.

  The stretchable member 3 is made of a single sheet-like mesh, and it is preferable to use a stretchable resin material such as polypropylene as an example. The elastic member 3 is fixed by a plurality of first fixing members 4 on the upper side and a plurality of second fixing members 5 on the lower side. Therefore, as shown in FIG. 11, when viewed from the front, the elastic member 3 is installed so as to cover the masonry block 2a.

The first fixing member 4 includes a first fixing pile 4a having a first screw portion 4a ₁ at the upper portion, and a first plate member 4b made of iron or the like for supporting the first fixing pile 4a through a hole (not shown). When, having a first nut 4c screwed to the first screw portion 4a ₁ of the first fixing pile 4a, the.

The second fixing member 5 includes a second fixing pile 5a having a second screw portion 5a ₁ on the upper portion, and a second plate member 5b made of iron or the like that supports the second fixing pile 5a in a state where the second fixing pile 5a is passed through a hole (not shown). When, a second nut 5c screwed into the second threaded portion 5a ₁ of the second fixing pile 5a, the.

  In the masonry wall reinforcement method for reinforcing the masonry wall reinforcement structure 1 of the fifth embodiment, the masonry wall 2 in which the masonry blocks 2a are stacked on the front surface of the sloping land L, the stretchable members 3 having elasticity are placed on the masonry block 2a. A step of fixing the elastic member 3 to the upper inclined portion of the inclined land L by the first fixing member 4, and a step of fixing the elastic member 3 to the lower inclined portion of the inclined land L by the second fixing member 5. And having.

  Specifically, the step of installing the expansion / contraction member 3 includes a step of fixing the expansion / contraction member 3 by the first fixing member 4 and the second fixing member 5.

The step of installing the first fixing member 4 includes the step of installing the first plate member 4b on the upper part of the inclined land L, the first fixing pile 4a penetrating the first plate member 4b and the elastic member 3, and and a step of inserting the masonry block 2a, a step of screwing the first nut 4c to the first threaded portion 4a ₁ of the first fixing pile 4a, the.

The step of installing the second fixing member 5 includes the step of installing the second plate member 5b below the inclined land L, the second fixing pile 5a penetrating the second plate member 5b and the elastic member 3, and the step of the inclined land L. and a step of inserting the lower portion of the masonry block 2a, a step of screwing the second nut 5c in the second threaded portion 5a ₁ of the second fixing pile 5a, the.

  Thus, by using the masonry wall reinforcement structure 1 of the fifth embodiment, the first fixing member 4 and the second fixing member 5 are installed on the inclined land L, and installation areas above and below the inclined land L are required. Disappear. Therefore, the construction is simple, the workable area per unit time is large, and construction at low cost is possible. Similarly to the first embodiment shown in FIG. 3, even if the masonry block 2 a collapses, the elastic member 3 can suppress the masonry block 2 a from dropping and reduce the spread of the sloped area forward. It becomes possible.

  In addition, you may form the expansion-contraction member 3 of 5th Embodiment with a strip | belt-shaped sheet | seat like the other example shown in FIG. In this case, the elastic member 3 is made of a belt-like mesh, and it is preferable to use an elastic resin material such as polypropylene as an example. The elastic member 3 is fixed to the upper and lower portions of the masonry block 2a by the first fixing member 4 on the upper side and the second fixing member 5 on the lower side, respectively, and the first elastic sheet 3a installed in the vertical direction, And a second stretchable sheet 3b installed over. Accordingly, as shown in FIG. 12, when viewed from the front, the first stretchable sheet 3a extends in the vertical direction, and the second stretchable sheet 3b extends in the lateral direction so as to cross each part of the masonry block 2a. Installed. The stretchable member 3 may be provided with the second stretchable sheet 3b so as to partially overlap the first stretchable sheet 3a, or the first stretchable member 3 may partially overlap with the second stretchable sheet 3b. You may install the sheet | seat 3a.

  FIG. 13: is sectional drawing of the masonry wall reinforcement structure of 6th Embodiment. FIG. 14 is a front view of the masonry wall reinforcing structure of the sixth embodiment. Further, FIG. 15 is a front view of a masonry wall reinforcing structure of another example of the sixth embodiment.

  The masonry wall reinforcing structure 1 according to the sixth embodiment includes a stretchable member 3 installed in front of the masonry block 2a and a stretchable member 3 on the sloped land L, and a stretchable member 3 on the sloped land. A first fixing member 4 to be fixed to the upper inclined portion of L, and a driving pin 6 which is driven into the masonry block 2a while leaving the head portion on the front surface of the elastic member 3 and penetrating the elastic member 3;

  The stretchable member 3 is made of a single sheet-like mesh, and it is preferable to use a stretchable resin material such as polypropylene as an example. The elastic member 3 is fixed by the first fixing member 4 on the upper side and the driving pin 6 on the lower side. Therefore, as shown in FIG. 14, when viewed from the front, the elastic member 3 is installed so as to cover the masonry block 2a.

The first fixing member 4 includes a first fixing pile 4a having a first screw portion 4a ₁ at the upper portion, and a first plate member 4b made of iron or the like for supporting the first fixing pile 4a through a hole (not shown). When, having a first nut 4c screwed to the first screw portion 4a ₁ of the first fixing pile 4a, the.

  The driving pin 6 is a lighter and shorter pile than the first fixing pile 4a, and can be driven more easily. The upper part is preferably formed in a flange shape like a nail or a thumbtack. At least one driving pin 6 is preferably driven into one masonry block 2a. Moreover, it is preferable that the driving pins 6 are configured to drive a large amount into the side and lower masonry blocks 2a. In particular, it is preferable that the most side and lowermost masonry blocks 2a be driven most.

  Thus, the 1st elastic sheet 3a and the 2nd elastic sheet 3b as the elastic member 3 are installed firmly by setting it as the structure which drives many driving pins 6 into the side and lower masonry block 2a.

  In the masonry wall reinforcement method for reinforcing the masonry wall reinforcement structure 1 of the sixth embodiment, the masonry wall 2 in which the masonry blocks 2a are stacked on the front surface of the inclined land L, the stretchable elastic member 3 is placed on the masonry block 2a. A step of fixing the expansion / contraction member 3 to the upper inclined portion of the inclined land L by the first fixing member 4, and masonry with the head remaining on the front surface of the expansion / contraction member 3 and penetrating the expansion / contraction member 3 And driving the driving pin 6 into the block 2a.

  The process of installing the first fixing member 4 is the same as that of the fifth embodiment.

  Thus, by using the masonry wall reinforcement structure 1 of the sixth embodiment, since it is configured to drive many driving pins 6 into the lower masonry block 2a, there is no need to install the second fixing member 5, It is possible to reduce the installation area in front of and below the inclined land L, and further, the construction is simple, the construction possible area per unit time is large, and the construction can be performed at low cost. Similarly to the first embodiment shown in FIG. 3, even if the masonry wall reinforcement structure 1 collapses, the elastic member 3 can suppress the fall of the masonry block 2a, and reduce the forward spread of the sloped land. It becomes possible.

  In addition, like the other example shown in FIG. 15, you may form the expansion-contraction member 3 from a strip | belt-shaped mesh. For example, the elastic member 3 is preferably made of a stretchable resin material such as polypropylene. The elastic member 3 is fixed by the first fixing member 4 on the upper side and the driving pin 6 on the lower side, fixed on the upper and lower direction by the first elastic sheet 3a, and fixed by the driving pin 6, and installed on the left and right direction. Second stretchable sheet 3b. Therefore, as shown in FIG. 15, when viewed from the front, the first elastic sheet 3a extends in the vertical direction and the second elastic sheet 3b extends in the horizontal direction so as to cross each part of the masonry block 2a. Installed. The second stretchable sheet 3b may be installed so as to partially overlap the first stretchable sheet 3a, or the first stretchable sheet 3a may be disposed so as to partially overlap the second stretchable sheet 3b. May be.

  The step of installing the expansion / contraction member 3 includes a step of fixing the first expansion / contraction sheet 3 a by the first fixing member 4 and a step of fixing the second expansion / contraction sheet 3 b to the masonry block 2 a by the driving pin 6. In addition, although it is preferable to install the 1st elastic sheet 3a ahead of the 2nd elastic sheet 3b, you may install the 2nd elastic sheet 3b ahead of the 1st elastic sheet 3a.

  FIG. 16 is a cross-sectional view of a masonry wall reinforcing structure of a reference example. FIG. 17 is a perspective view of the masonry wall reinforcing structure of the reference example.

  In the masonry wall reinforcement structure 1 of the reference example, in the masonry wall 2 in which the masonry blocks 2a are stacked on the front surface of the sloped land L, the stretchable members 3 installed in front of the masonry blocks 2a and the stretchable members 3 are connected to the sloped land L. It has the 1st fixing member 4 fixed to the upper ground La, and the 2nd fixing member 5 which fixes the expansion-contraction member 3 to the lower ground Lb of the inclined land L.

  The stretchable member 3 is made of a string-like, tape-like or band-like member, and it is preferable to use a stretchable resin material such as polypropylene as an example. The elastic member 3 is fixed by a first fixing member 4 on the upper side and a second fixing member 5 on the lower side, and is installed in a direction inclined upward and downward to the right, and a first fixing member 4 on the upper side. The second elastic member 13b is fixed on the lower side by the second fixing member 5 and is installed in a direction inclined upward and downward to the left. Therefore, as shown in FIG. 17, when viewed obliquely from the front, the first elastic cord 13a and the second elastic cord 13b are installed so as to cross over the masonry block 2a, respectively.

  Moreover, it is preferable that the edge part of the 1st elastic cord 13a and the 2nd elastic cord 13b has the 1st fixing ring 13c and the 2nd fixing ring 13d, respectively. The first fixing ring 13 c is hooked on the first fixing member 4, and the second fixing ring 13 d is hooked on the second fixing member 5.

  In addition, it is preferable that the 1st elastic cord 13a and the 2nd elastic cord 13b are each installed along the angle of the masonry block 2a. In particular, it is preferable that at least one first elastic cord 13a and second elastic cord 13b are installed so as to correspond to one diagonal row of the masonry block 2a.

  The masonry wall reinforcement method for reinforcing like the masonry wall reinforcement structure 1 of the reference example is that the masonry wall 2 in which the masonry block 2a is piled on the front surface of the sloping land L, the stretchable elastic member 3 is placed in front of the masonry block 2a. A step of fixing the elastic member 3 to the upper ground La of the inclined land L by the first fixing member 4, a step of fixing the elastic member 3 to the lower ground Lb of the inclined land L by the second fixing member 5, and Have

  Specifically, in the step of installing the elastic member 3, the first fixing ring 13c of the first elastic cord 13a is hooked on the first fixing member 4, and the second fixing ring 13d of the first elastic cord 13a is set to the second fixing member. 5 and a step of hooking the first fixing ring 13c of the second elastic cord 13b to the first fixing member 4 and hooking the second fixing ring 13d of the second elastic cord 13b to the second fixing member 5. . Either the first elastic cord 13a or the second elastic cord 13b may be installed first.

  Thus, by using the masonry wall reinforcement structure 1 of the reference example, the construction is further simplified, the construction possible area per unit time is large, and the construction at a low cost is possible. Moreover, as shown in FIG. 3, even if the masonry block 2a collapses as in the first embodiment, the elastic member 3 can suppress the masonry block 2a from falling and reduce the spread of the sloped area forward. It becomes possible.

  Although various embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and embodiments configured by appropriately combining the configurations of the respective embodiments also fall within the scope of the present invention. Is.

DESCRIPTION OF SYMBOLS 1 ... Masonry wall reinforcement structure 2 ... Masonry block 3 ... Elastic member 4 ... 1st fixing member 5 ... 2nd fixing member 6 ... Driving pin 7 ... Driving pile

Claims (10)

In the masonry wall reinforcement structure where masonry blocks are stacked on the front of the slope,
An elastic member installed in front of the masonry block and having elasticity,
A fixing member for fixing the stretchable member to the slope;
Masonry wall reinforcement structure characterized by comprising. The fixing member is
A first fixing member for fixing an upper portion of the elastic member;
A second fixing member for fixing a lower portion of the elastic member;
The masonry wall reinforcing structure according to claim 1, comprising: The first fixing member fixes the expansion and contraction member at an upper inclined portion of the inclined land,
The masonry wall reinforcement structure according to claim 1 or 2, wherein the second fixing member fixes the elastic member at a lower inclined portion of the inclined ground. The masonry wall reinforcement structure according to any one of claims 1 to 3, further comprising a driving pin that is driven into the masonry block while penetrating the elastic member. 5. The masonry wall according to claim 1, wherein more of the driving pins are driven into the masonry block at the lower part of the slope than the masonry block at the upper part of the slope. Reinforced structure. The masonry wall reinforcing structure according to any one of claims 1 to 5, wherein the elastic member is made of one sheet. The elastic member is composed of a belt-like sheet,
A first stretchable sheet installed over the longitudinal direction;
A second elastic sheet installed across the lateral direction;
Have
The said 1st elastic sheet and the said 2nd elastic sheet are installed so that it may each cross | intersect so that a part of said masonry block may be covered, The Claim 1 thru | or 5 characterized by the above-mentioned. Masonry wall reinforcement structure. In the reinforcement method of the masonry wall which piled up masonry blocks on the front of the slope,
Installing a stretchable member having stretchability in front of the masonry block;
Fixing the expansion and contraction member to the slope with a fixing member;
A method for reinforcing a masonry wall, comprising: The step of fixing the stretchable member to the inclined land by a fixing member,
Fixing the upper part of the elastic member by a first fixing member;
Fixing a lower portion of the elastic member by a second fixing member;
The masonry wall reinforcement method according to claim 8, comprising: The masonry wall reinforcing method according to claim 8 or 9, further comprising a step of driving a driving pin into the masonry block in a state of penetrating the elastic member.

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