JP2001003365A - Reinforcing material for laying wall-clay surface protective material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost and improve the function of a reinforcing material by fixing one end of a spiral band body, in which size is specified, on the wall clay side of a wall-clay surface protective material and burying the other end into wall clay. SOLUTION: The reinforcing material 1 for laying the wall-clay surface protective material is constituted by spirally twisting a beltlike steel plate in width of 20-150 mm and in thickness of 2-8 mm at pitches of 50-500 mm, desirably 100-300 mm. The reinforcing material 1 in length corresponding to the height of a bank is positioned horizontally at the fixed place of the bank in the case of the execution of works, and the mounting section 2 of the reinforcing material 1 is exposed and buried from a section as a wall clay surface. The bank is completed, and a waterproof mat or the like is laid on the wall clay surface and the wall clay surface is adjusted so as not to collapse. A large number of wall-clay surface protective material B are superposed and laid along the wall clay surface while the mounting section 2 of the reinforcing material 1 is fixed onto the mounting member T of the protective material B. Thus, since the reinforcing material can be machined easily and the forming surface of the angle of torsion is formed in a curved surface having an angle to an axis, resistance against tensile action to the wall clay surface side can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing material for laying a wall-soil surface protective material laid along a wall-soil surface.

[0002]

2. Description of the Related Art In general, there are various types of wall-soil surface protective materials such as so-called concrete skins and metal skins, concrete blocks, metal meshes and resin nets. As shown in FIG. 4, as a wall soil surface protection material, for example, a plate-like material called the above-mentioned concrete skin, metal skin, or the like will be described. The ridge Ba is integrally formed on each corner, and the recess B
b, for example, about 1500 mm long and about 1 mm wide
It is formed to a size of about 700 mm and a thickness of about 200 mm. When constructing the wall soil surface protection material B, the upper and lower side ends are vertically joined to each other so as to be continuous, and the deformed side surfaces having the ridges Ba are meshed with each other on the left and right sides, along the wall soil surface Ea. These many wall soil surface protection materials B are stacked to cover the wall soil surface Ea. The wall-soil surface protection material B laid in this manner has a band-like laying in which one end is fixed to the wall-soil surface Ea side of the wall-soil surface protection material B and the other end is buried in the wall soil E formed by embankment. A reinforcement member 1 is provided. This provides stability to the soil forming the wall soil surface Ea and strengthens the support of each wall soil surface protection material B. Conventionally, as shown in FIG. 5, the reinforcing material 1 for laying the wall soil surface protection material is formed in a band shape having a predetermined length, and is protruded from one end 1a to the wall soil surface Ea side of the wall soil surface protection material B. An attachment portion 2 is formed to be fixed to a metal attachment member T with bolts and nuts. Further, a plurality of convex portions 3 are integrally formed at predetermined upper and lower portions at right angles to the longitudinal direction to increase the tensile resistance with the wall soil E,
This prevents the wall soil surface protection material B from peeling off from the wall soil surface Ea.

[0003]

In the conventional reinforcing material 1 for laying a wall and soil surface protecting material, a plurality of convex portions 3 are integrally formed on a belt-like material, so that a special molding material is required. Since a mold must be provided, the production and the process are difficult, and there is a problem that the production cost is high and the economy is low. In addition, since the projections 3 cannot be formed so large due to manufacturing difficulties, there is a limit to the tensile resistance with the wall soil E, and there is a demand to further increase the tensile resistance.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made to reduce the cost by making it easy to form, and to improve the function by increasing the resistance to the tensile action on the wall soil surface side. It is an object of the present invention to provide a reinforcing material for laying a wall-soil surface protective material.

[0005]

According to the technical means of the present invention for solving the above-mentioned problem, one end is fixed to a wall soil surface side of a wall soil surface protection material laid on the wall soil surface, and the other end is fixed to the wall soil surface. In the reinforcing material for laying the strip-shaped wall soil surface protective material buried in the inside, the structure was formed in a spiral torsion. Since the strip can be manufactured by a simple process of simply twisting, for example,
The spiral torsion can be processed by a method such as fixing one end of the belt-shaped body and rotating the other end, and the processing is easy, without requiring a complicated process and a great deal of labor, as in the conventional case. Since there is no need to provide a molding die, significant cost reduction is achieved. In addition, a helical twist forms a twist angle with respect to the axis. The surface forming the torsion angle is a curved surface having an angle with respect to the axis. If the laying reinforcement is pulled along the axis toward the wall soil surface, the surface forming the torsion angle acts as a resistance surface against the soil, increasing the resistance and pulling the wall soil surface. Sufficient resistance to action can be created.

[0006] If necessary, the twist pitch may be increased by 50.
５００500 mm. Desirably, the twist pitch is 100 to 300 mm. If the pitch of the twist is too short, it is necessary to pay attention to processing such as not torn the twist when forming the twist, so that the reinforcing material for laying cannot be easily formed. On the other hand, if the length is too long, the number of resistance surfaces per unit length is reduced, so that it is difficult to form a sufficient resistance. The twist pitch
By setting the thickness to 100 to 300 mm, the required number of resistance surfaces per unit length can be secured, and a necessary and sufficient resistance to the pulling action from the wall soil can be formed. Further, the width is set to 20 to 150 mm as required. If the width is too short, the area of the surface forming the torsion angle becomes small, and it is difficult to generate a sufficient resistance to pulling toward the wall soil surface side. On the other hand, if it is too large, it is difficult to process, it is difficult to fix the end, and the handling becomes complicated. Furthermore, if necessary, the thickness is set to 2 to 8 mm. When the thickness is small, the strength of the reinforcing material itself becomes weak, which is not preferable. If it is too thick, twisting becomes difficult. In addition, if necessary, one end is provided with a mounting hole for mounting to a mounting member protruding from the wall soil surface side of the wall soil surface protection material and provided. The laying reinforcement can be easily fixed to the wall soil surface protection material by positioning the hole so as to communicate with the mounting hole and fastening with a bolt and a nut.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A reinforcing material for laying a wall and soil surface protecting material according to an embodiment of the present invention will be described below with reference to the accompanying drawings. Note that the same components as described above are denoted by the same reference numerals and described. As described above, the reinforcing material 1 for laying according to the embodiment shown in FIGS. 1 and 2 is a plate-like wall soil surface protection material B called a so-called concrete skin, metal skin or the like.
Used for This wall-soil surface protective material B is formed integrally with a ridge Ba at the center of the left and right sides of the rectangular plate, and has a recess Bb at each corner. For example, the height is about 1500 mm, the width is about 1700 mm, and the thickness is about 1500 mm. It is formed in a size of about 200 mm. On the wall soil surface Ea side of the wall soil surface protection material B,
A plurality (four in the example in the figure) of metal plate-like mounting members T for mounting the laying reinforcement 1 are protruded. The mounting member T is formed with two through holes Ta.

[0008] The reinforcing material 1 for laying the wall soil surface protective material according to the embodiment is formed by spirally twisting a strip-shaped steel plate. Specifically, the twist pitch P of the reinforcing material 1 for laying is
Is set to be 50 to 500 mm. Desirably, it is 100 to 300 mm. Where the twist pitch P
The term "length" means a length required for the steel sheet to be twisted one rotation about the axis X. The width W of the steel plate used is 20 to 150 m.
m and thickness D are set to be 2 to 8 mm. In the embodiment, for example, P = 200 mm, W = 60 mm, D
= 5 mm. The length L of the steel plate is appropriately adjusted according to the height position in the wall soil E to be buried. As a result, a twist angle θ is formed on the steel sheet according to the length L used and the pitch P of the twist, and the surface M forming the twist angle θ faces the wall soil surface Ea side, and the tensile action on the wall soil surface Ea is performed. To form a resistance surface.

At one end 1a of the reinforcing material 1 for laying the wall-soil surface protective material, a mounting portion 2 for mounting to a mounting member T protruding from the wall-soil surface protective material B to the wall soil surface Ea side is formed. ing. The mounting portion 2 is provided with two mounting holes 4 corresponding to the through holes Ta of the mounting member T. The mounting hole 4 and the through hole Ta are communicated with each other, and the bolt 6 is passed through the communicating portion via the washer 5 and tightened with the nut 7, whereby the wall soil surface protection material B and the laying reinforcing material 1 are connected. If fixed in this way, when the tensile action on the wall soil surface Ea side occurs, the laying reinforcing member 1 cannot rotate and move along the axis X, so that the resistance to the tensile action is improved.

Therefore, when manufacturing the reinforcing material 1 for laying the wall-soil surface protective material according to this embodiment, for example, the existing strip is spirally twisted using a twisting machine using a rolling roller. In this case, since the belt-like body can be manufactured by a simple process of simply twisting, processing is easy, and there is no need to provide a special mold as in the related art, so that significant cost reduction is achieved. .

When the wall-soil surface protection material B is constructed using the wall-soil surface protection material laying reinforcement material 1 according to this embodiment, first, the embankment is filled with a bulltozer or the like, and the embankment is placed at a predetermined position. The laying reinforcing material 1 having a length L corresponding to the height is leveled and buried by a hand press or the like so that the mounting portion 2 is exposed from a portion serving as the wall soil E.
After the embankment is completed, a waterproof mat or the like is laid on the wall soil surface Ea formed by the embankment, and the wall soil surface Ea is adjusted so as not to collapse. Thereafter, a large number of wall soil surface protecting materials B are formed along the wall soil surface Ea. Transported by a crane or the like and laid. When laying the wall soil surface protection material B, the wall soil surface protection material B is positioned so that the mounting hole 4 of the mounting portion 2 of the laying reinforcing material 1 and the through hole Ta of the mounting member T communicate with each other. A bolt 6 is passed through the place via a washer 5 and tightened with a nut 7 to fix the wall soil surface protection material B to the laying reinforcement 1. In addition, when laying the wall soil surface protection material B, the upper and lower side ends are vertically joined to each other to be continuous, and the deformed side surfaces having the ridges Ba are meshed with each other,
These many wall soil surface protection materials B are stacked along the wall soil surface Ea so as to cover the wall soil surface Ea. The intermediate material (not shown) such as concrete or soil is interposed between the wall soil surface Ea on which the waterproof mat is laid and the wall soil surface protecting material B.

In the wall soil surface protection material constructed in this manner, the laying reinforcing material 1 is buried in the wall soil E,
To the embankment that forms the wall,
a to fix the wall soil surface protection material B laid on the
Is prevented from leaving. In this case, even if the wall earth pressure acts on the wall soil surface protection material B and the laying reinforcement 1 is pulled toward the wall surface Ea, the laying reinforcement 1 is formed in a helical twist. Surface M that forms the resulting torsion angle
However, since it has a curved surface forming an angle with the axis X and is in contact with the soil, it generates a resistance to a tensile action. Therefore, even if a force for moving the laying reinforcement 1 toward the wall surface Ea is generated by the tensile action, the surface M is in close contact with the soil compacted as the resistance surface.
Is not moved, and a necessary and sufficient resistance against the tensile action on the wall soil surface Ea side is generated.
Further, the reinforcing member 1 for laying is fixed to the mounting portion 2 at one end 1a so as not to be rotatable about the axis X.
The resistance to the pulling action on the a side is improved.
As described above, the reinforcing material 1 for laying the wall soil surface protective material is buried in the wall soil E so as to generate a strong resistance to the tensile action on the wall soil surface Ea side. Detachment from the surface Ea is reliably prevented.

FIG. 3 shows a reinforcing material for laying a wall and soil surface protecting material according to another embodiment. This is substantially the same as the above, except that a large number of through-holes 8 are formed over the entire length of the central portion of the strip. As a result, the wall soil enters the through hole 8 and the inner edge 9 of the through hole 8 acts as a resistance surface against the soil, so that it can be expected that the resistance is further increased.

The material and various dimensions of the reinforcing material for laying the wall-soil surface protective material according to the above embodiment are not limited to those described above, and may be appropriately changed. For example, the material is not limited to steel, and various metals or resins may be used. In the case of a resin, for example, it can be stretch-formed while being twisted, thereby facilitating production. In the above-described embodiment, the present invention has been described by using an example in which the present invention is applied to a plate-like material called a concrete skin, a metal skin, or the like. However, the present invention is not particularly limited and can be used for a metal mesh, a resin net, or the like. .

[0015]

As described above, according to the reinforcing material for laying the wall-soil surface protective material of the present invention, since the strip is formed into a helical shape, the strip is simply twisted. Since it can be manufactured, it is easy to process, and it is not necessary to provide a special mold as in the related art. Further, by twisting helically, a torsion angle is formed with respect to the axis, and the surface forming the torsion angle is a curved surface having an angle with respect to the axis. Even if a pulling action occurs on the side, the curved surface acts as a resistance surface with the wall soil, so that sufficient resistance can be generated, and the resistance to the pulling action on the wall soil side is increased to improve the function. Can be achieved.

Further, the twist pitch is 50 to 500 mm.
When it is set to 100 to 300 mm, there is no danger of twisting when forming the twist, the reinforcing material for laying can be easily formed, and it is necessary per unit length. A necessary and sufficient resistance to the tensile action on the wall soil surface can be generated by securing the resistance surface. When the width is set to 20 to 150 mm, an area of a surface forming a twist angle effective for forming a necessary and sufficient resistance to a tensile action on a wall soil surface can be formed. In addition, both ends can be easily fixed at the time of twisting, and the belt-shaped body can be easily twisted. When the thickness is 2 to 8 mm, the band can be twisted so as to form a desired twist pitch. Further, in a case where an attachment hole for attaching to an attachment member provided at one end and protruding from the wall soil surface side of the wall soil surface protection material is provided, the bolt and the nut are positioned so that the hole communicates with the attachment hole. And can be easily fixed to the wall soil surface protection material.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a reinforcing material for laying a wall soil surface protection material according to an embodiment of the present invention, together with an example of a wall soil surface protection material.

FIG. 2 is a view showing a reinforcing material for laying a wall-soil surface protective material according to an embodiment of the present invention, wherein (a) is a front view,
(B) is a plan view.

FIG. 3 is a plan view showing a reinforcing material for laying a wall and soil surface protecting material according to another embodiment of the present invention.

FIG. 4 is a perspective view showing an example of a laying structure of a wall and soil surface protective material to which the present invention is applied.

FIG. 5 is a perspective view showing a conventional reinforcing material for laying a wall-soil surface protective material, where (a) is a front view and (b) is a plan view.

[Explanation of symbols]

 E Wall soil Ea Wall soil surface B Wall soil surface protection material Ba Ridge Bb recess T Mounting member Ta Through hole θ Twist angle P Pitch D Thickness X-axis W width L Length M surface 1 Reinforcing material for laying wall soil surface protection material 1a One end 2 Mounting part 3 Convex part 4 Mounting hole 5 Washer 6 Bolt 7 Nut 8 Through hole

Claims (6)

[Claims] 1. A reinforcing material for laying a strip-shaped wall soil surface protection material, one end of which is fixed to the wall soil surface side of a wall soil surface protection material laid on the wall soil surface, and the other end of which is buried in the wall soil. A reinforcing material for laying a wall soil surface protection material, which is formed by twisting. 2. The reinforcing material according to claim 1, wherein the twist pitch is 50 to 500 mm. 3. The reinforcing material according to claim 1, wherein the pitch of the twist is 100 to 300 mm. 4. The reinforcing material according to claim 1, wherein the width is 20 to 150 mm. 5. The reinforcing material for laying a wall-soil surface protective material according to claim 1, wherein the thickness is 2 to 8 mm. 6. A mounting hole provided at one end for mounting to a mounting member protruding from the wall soil surface side of the wall soil surface protecting material and provided. A reinforcing material for laying the wall soil surface protective material described in the above.