JPH11100848A - Block fixed sheet, its manufacture, and its installation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve an execution property by sticking a synthetic resin mesh sheet between many pairs of upper and lower blocks arranged at intervals with a binder. SOLUTION: Mortar 18 is applied to many lower blocks 10 arranged into a lattice shape at prescribed intervals, a support sheet 12 made of a flexible synthetic resin mesh sheet is stuck to the mortar 18, and a margin portion having no block 10 is provided on one side of the sheet 12. Upper blocks 16 are mounted and integrally stuck on the blocks 10 to form a block fixed sheet S, or upper block molding forms are mounted on the sheet 12, concrete is placed, and the forms ate removed after curing. At the time of execution, the margin portion of the sheet S is held by a hoisting jig and hoisted into a suspended curtain shape by a crane vehicle, and it is installed on a face of slope. Multiple concrete blocks can be efficiently and easily installed at the prescribed position, and the block fixed sheet S can be easily manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a block fixing sheet, a method of manufacturing the same, and a method of laying the block fixing sheet.
Block fixing sheet used for protection, water permeability, vegetation, grass protection, erosion prevention, etc., for roads, railways, parking lots and the like (all including interlocking pavements), a method of manufacturing the same, and the block fixing sheet Laying method.

[0002]

2. Description of the Related Art Conventionally, for example, when laying a large number of concrete blocks (hereinafter, also simply referred to as "blocks") on a road or a parking lot, the blocks are positioned one by one by human power. A very time-consuming method such as placing it in a predetermined location while taking it was adopted. As a result, not only the construction time is lengthened and the work efficiency is deteriorated, but also the fatigue of the craftsman and, in turn, the separation (decrease) of the craftsman from the job have been a problem. In addition, construction in a location having a slope, for example, on a slope of a coast or a river is dangerous, and the work efficiency is further deteriorated.

[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to lay a plurality of concrete blocks at a predetermined location at one time (efficiently) and easily. Block sticking sheet,
It is an object of the present invention to provide a manufacturing method thereof and a method of laying the block fixing sheet.

[0004]

According to a first aspect of the present invention, there is provided a block fixing sheet having a flexible structure between a pair of upper and lower concrete blocks arranged in parallel at a predetermined interval from each other. The support sheet made of the synthetic resin mesh sheet described above is sandwiched via a binder.

[0005] A block fixing sheet according to a second aspect is the sheet according to the first aspect, wherein the binder is made of mortar.

The method of manufacturing a block fixing sheet according to claim 3 is a method of manufacturing a block fixing sheet comprising the following steps (A) to (D). (A) The lower concrete blocks are laid at predetermined intervals. (B) A binder is applied to the upper surface of the lower concrete block. (C) A support sheet made of a flexible synthetic resin mesh sheet is placed on the lower concrete block, and the support sheet is bonded to the upper surface of the lower concrete block. (D) A mold is placed on the lower concrete block, and concrete is poured into the mold, or a cured upper concrete block is placed.

According to a fourth aspect of the present invention, there is provided a method of laying a block fixing sheet, wherein a supporting sheet made of a synthetic resin mesh sheet is provided between a pair of upper and lower concrete blocks arranged in parallel with a binder. A marginal end is provided on at least one side of a peripheral portion of the block fixing sheet that is sandwiched, and the block fixing is performed by gripping only one side of the marginal end so as to lay the block fixing sheet at a predetermined position. The method is characterized in that the sheet is lifted in a hanging curtain shape, and the block fixing sheet is sequentially lowered to a predetermined position from the lower end to the upper end.

[0008]

In the block fixing sheet according to the first aspect, since a number of upper concrete blocks are bonded (fixed) to the upper surface of the support sheet, the upper concrete blocks are lifted (lifted) by an appropriate heavy machine to a predetermined height. If it is lowered to be laid at a place, a plurality of concrete blocks can be laid at one time, and the efficiency of the laying work is dramatically improved.

Further, in the block fixing sheet of the present invention, concrete blocks are fixed to the upper surface and the lower surface of the support sheet. In other words, the support sheet is moved from both sides by the upper block and the lower block. Since the holding sheet is provided, the supporting sheet can be pressed and fixed by the two blocks from opposite directions, and the blocks can be bonded more firmly than when the blocks are bonded to one side. As a result, it is possible to remarkably prevent the block from being displaced or dropped. Also, since the block is bonded not only to the upper surface of the support sheet but also to the lower surface,
It can increase the frictional resistance against the laying surface of the product itself, and also has the effect of preventing the outflow of soil due to rainfall and melting of snow and protecting the slope as described below. In other words, when laying the block fixing sheet on a slope such as a slope of a river, by laying the blocks so as to line up in the maximum inclination direction of the slope, a large number of blocks adhered to the lower surface of the support sheet At least a part of the soil penetrates (penetrates into) the soil that constitutes the slope, exerts the effect of slip prevention (stabilization effect), and can remarkably prevent the displacement of the block fixing sheet laid on the slope. The slope of the river.

Since the support sheet has a large number of meshes, the binder applied to the upper surface of the lower concrete block also contributes to the adhesion (fixation) between the support sheet and the upper concrete block via the mesh. In addition, by slightly increasing the interval between a large number of blocks that are fixed and juxtaposed and securing a region that can be occupied by soil, the blocks can be used as vegetation members. In other words, when vegetation is applied on the soil between blocks, the roots of the plants spread in the ground through the mesh, or when the seeds are sown in advance where the block fixing sheet is laid, the mesh The plant grows through. Further, since the support sheet has a large number of meshes, it is possible to allow rainwater and snowmelt to pass through the back surface of the block fixing sheet. Then, rainwater or the like that has permeated to the back surface can flow as a flowing water passage between one lower block and another adjacent lower block and be collected at a predetermined location. Thus, the block fixing sheet of the present invention also has a function as a drainage member.

[0011] Since the support sheet has flexibility, even if there is a curved portion or unevenness in the place where the support sheet is laid, the block fixing sheet can be laid along such terrain.

In the block fixing sheet according to the second aspect, since mortar is used as a binder for bonding (fixing) the support sheet and the block, the bonding state between the support sheet and the block is very strong. Thus, during transport (conveyance), lifting, or after laying of the block-fixed sheet, block displacement, peeling, and falling off can be significantly suppressed.

In the method for manufacturing a block fixing sheet according to the third aspect, the bonding (fixing) of a large number of lower concrete blocks to the support sheet can be performed easily and efficiently. Mass production of seats becomes possible.

According to a fourth aspect of the present invention, there is provided a method for laying a block fixing sheet, wherein a marginal end is provided on at least one side in a peripheral portion of the block fixing sheet, and only one side of the marginal end is gripped. For example, a suitable heavy machine such as a backhoe or a crane lifts the block-fixed sheet in the form of a banner, and sequentially lowers the block-fixed sheet to a predetermined position from the lower end side to the upper end side. Such as in places with gradients,
In addition, the block fixing sheet can be laid efficiently and accurately. Further, even if the laying position of the block fixing sheet slightly deviates from a desired position, the block fixing sheet can be easily lifted and laid again.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The support sheet in the present invention is a flexible mesh sheet made of synthetic resin, which is made by knitting and weaving synthetic resin fibers (yarns) (knitted sheet, woven sheet) or a large number of synthetic sheets. Resin fibers (yarns) are vertically and horizontally arranged side by side, and each intersecting portion is bonded or heat-welded to form a sheet, or a synthetic resin sheet provided with a large number of holes at predetermined intervals is used. Examples of the synthetic resin material include polyester, polypropylene, and polyethylene. In addition, the warp or the weft may appropriately include a metal strip for reinforcement. The size of the support sheet is preferably about 5 to 30 mm in order to increase the contact area with the binder. Also,
The distance between one mesh and another adjacent mesh is not particularly limited, but is preferably approximately 0.5 to 5 mm in that a sheet having excellent strength can be obtained.

The size of the block to be used is, for example, a thickness (height) of 5 to 10 c for the upper block.
m, width and depth are each 10.0 to 50.0 cm, and thickness (height) 1 to 5c for the lower block
m, width and depth are each 10.0 to 50.0 cm, but are not limited thereto. The distance (joint) between one block and another adjacent block
Is approximately 0.5 to 3 cm.

As the binder, an ordinary adhesive, for example, an adhesive made of various synthetic resins such as an epoxy adhesive, a phenol resin adhesive, and a vinyl acetate adhesive is used, but the concrete block is firmly attached to the support sheet. It is preferable to use mortar in that it can be bonded (fixed). In this case, a mortar containing no synthetic resin is more preferable in that it has excellent weather resistance.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings, but the present invention is not limited thereto.

(Manufacture of Block Adhering Sheet) As shown in FIG. 1, a number of lower blocks (10) (3)
0 cm × 30 cm × 1 cm (thickness)) were arranged side by side in a grid pattern (lattice form) in 6 rows × 12 rows with an interval of about 1 cm. Then, mortar (trade name: new generation mortar, manufactured by KI Corporation) was applied to the upper surface of the lower block (10) (coating thickness: about 0.5 to 1.0 mm).

Thereafter, a rectangular support sheet (12) is placed (placed) on the lower block (10) (see a two-dot chain line in FIG. 1), and the support sheet (12) is placed on the upper surface of the lower block (10). ) Was adhered. At this time, in order to form a slightly wider margin end portion (14) in the finally obtained block fixing sheet (S), the lower block (10) does not exist on one side of the support sheet (12). A wide part was provided. The support sheet (12) used in this example is a woven sheet in which synthetic resin fibers (threads) made of polyester and having a thickness of 1 mm are woven so as to intersect vertically and horizontally (mesh size 10 mm).
× 10 mm).

After bonding the support sheet (12) to the upper surface of the lower block (10), as shown in FIG. 2, on the lower block (10) (on the support sheet (12)), Upper block (16) (30cm x 30cm x 5cm (thickness))
Was put. As a result, as shown in FIG. 3, the support sheet (12) is integrated with the lower block (10) and the upper block (16) sandwiched therebetween via the mortar (18). The block fixing sheet (S) having the end (14) was obtained. In addition, upper block (16)
Prior to placing the mortar, the above-described mortar may be applied to a portion corresponding to the lower block (10) on the upper surface of the support sheet (12).

In this embodiment, the cured upper block (16) is placed on the support sheet (12). However, the present invention is not limited to this, and the support sheet (12) is placed on the lower block (10). It is also possible to adopt a method in which a formwork for molding the upper block is placed through the intermediary, concrete is poured into the formwork, and the formwork is removed after curing. Of course, in this case,
Before casting concrete, a binder such as the mortar (18) is applied to a predetermined location on the support sheet (12).

(Laying method of block fixing sheet (S))
Next, a method of laying the obtained block fixing sheet (S) on the slope of a river will be described.

As described above, the block fixing sheet (S) has a margin end (14) on one side. The block fixing sheet (S) is lifted in the form of a hanging curtain by gripping the margin end (14), and is laid on the slope. That is, as shown in FIG. 4, a wire (22) is hooked on a claw (21) usually provided on the outer surface of a shovel (20) in a backhoe (or shovel car or crane truck). A hook member (23) is attached to the lower end of the wire (22). A lifting jig (24) is hooked on the hook member (23). The lifting jig (24) has, for example, the following configuration.

That is, as shown in FIG. 5, the lifting jig (24) includes a column-shaped jig main body (25). A notch (26) that extends and opens in a slit shape on the outer peripheral surface penetrates in the longitudinal direction. The notch (26) has a gradually increasing (expanding) gap size from the opening (26a) on the outer peripheral surface toward the axis, and a space (storage space) in which the columnar body can be stored at the axis. ) Is formed, and an iron bar (27) that is the same as or slightly longer than the jig body (25) is loosely inserted into the space. In addition, this iron bar (2
The diameter of (7) is smaller than the width (slit gap) of the opening (26a) so that the iron bar (27) in the notch (26) does not fall out of the opening (26a). Support portions (28) extending upward are provided on the outer peripheral surfaces of the left and right sides of the jig body (25), respectively.
The tip of a wire (29) is fixed to each support (28). These wires (29) are bound above the jig body (25) and extend upward as one wire (30), as clearly shown in FIG. (23) is hooked.

The block fixing sheet (S) is attached to the lifting jig (24) having the above structure as follows.
That is, as shown in FIG. 7 (a), the marginal end (14) of the block fixing sheet (S) is inserted into the opening (26a) opened on the outer peripheral surface of the jig main body (25) and stored inside. The margin (14) is passed along the inner peripheral surface of the notch (26) so as to surround the iron bar (27) from below, and the iron bar (27) is wound around the opening (26a). ), Pull out the tip of the margin edge (14). In this state, if the lifting jig (24) is raised, as shown in FIG. 7 (b), the weight of the block fixing sheet (S) causes the iron rod (2) to move.
7) is closer to the opening (26a) side, and the margin end (14) of the block fixing sheet (S) is located between the jig body (25) and the iron bar (27) due to the weight of the block fixing sheet (S). It is firmly sandwiched. As a result, the lifting jig (2
4) Even if the block fixing sheet (S) is lifted up and the block fixing sheet (S) is lifted, the block fixing sheet (S) is lifted from the lifting jig (24).
There is no fear that the sheet will fall off, and the block fixing sheet (S) can be lifted (suspended) firmly like a curtain. Then, the suspended block fixing sheet (S) is laid on the slope of the river as shown in FIG. First, the lower end of the suspended block fixing sheet (S) is positioned at a desired position on the slope, and the block fixing sheet (S) is sequentially moved toward the upper end while maintaining this state. This is done by slowly lowering to a position.

The construction of the lifting jig (24) is not limited to that described above. For example, as shown in FIG. 8, the jig body (25) may be provided with a slit-shaped opening (26a) having an outer periphery. It may be a C-shaped cylindrical tube extending in the longitudinal direction on the surface. Also in this case, similarly to the above, an iron bar (27) is loosely inserted into the jig body (25), and FIG.
As shown in (a), the marginal end (14) of the block fixing sheet (S) is inserted into an opening (26a) opened on the outer peripheral surface of the jig body (25), and the iron bar housed therein is inserted. (27) so as to surround the margin from below (1
4) is passed along the inner peripheral surface of the jig body (25), and the tip of the marginal end (14) is pulled out from the opening (26a). In this state, if the lifting jig (24) is raised,
As shown in FIG. 9B, the iron bar (27) moves toward the opening (26a) due to the weight of the block fixing sheet (S), and the jig body (2) is moved by its own weight.
It is firmly sandwiched between 5) and the horizontal bar (27).

Another embodiment of the lifting jig (24) will be described with reference to FIGS. As shown in the perspective view of FIG. 10, opening and closing members (36) are provided at three locations on both sides in the longitudinal direction and a central portion on the lower surface of the jig body (25) having a columnar shape. The opening / closing member (36) has a cylindrical shape, and includes an upper arc portion (36a) and a lower arc portion (36b) each having an arc-shaped cross section. Upper arc part (36a)
The lower arc portion (36b) can be opened and closed by a hinge (38) provided on one side at a contact point thereof, and the open / close member (36) is in a closed state as shown in FIG. Take the shape. On the opposite side of the hinge (38), a flange (40) extends radially outward from each edge of the upper arc portion (36a) and the lower arc portion (36b). The flange (40) of the upper circular part (36a) and the lower circular part (36
A bolt insertion hole (not shown) is provided at a position opposite to the flange (36b) of b). By inserting the bolt (42) into the bolt insertion hole, the above-mentioned opening / closing member (36) can be held in a closed state (cylindrical state). FIG. 12 shows a method for gripping the block fixing sheet (S) with the lifting jig (24) having the above configuration.
Loosen the bolts (42) to open the opening / closing member (36) as shown in (1) and open the marginal end (1) of the block fixing sheet (S).
4) Wrap around the outer periphery of the iron bar (27) (iron bar whose outer diameter is smaller than the inner diameter of the opening / closing member (36)) and return the free end to the near side,
In this state, it is loaded inside the opening / closing member (36), and the bolt (42) is tightened to close the opening / closing member (36) as shown in FIG.

[0029]

According to the present invention, a block fixing sheet capable of laying a plurality of concrete blocks at a predetermined place at once (efficiently) and easily, a method of manufacturing the same, and a method of laying the block fixing sheet Can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one process of manufacturing a block fixing sheet of the present invention.

FIG. 2 is a perspective view of the block fixing sheet of the present invention (the lower block is hidden by the support sheet and cannot be seen).

FIG. 3 is a sectional view taken along the line AA of the preceding figure.

FIG. 4 is a view showing a work of laying a block fixing sheet.

FIG. 5 is a partial perspective view of a lifting jig.

FIG. 6 is a schematic explanatory view showing a state in which a block fixing sheet is lifted using the lifting jig of the preceding figure.

7 is a schematic cross-sectional view showing the relationship (gripping state) between the lifting jig of FIG. 5 and a marginal end of the block fixing sheet.

FIG. 8 is a partial perspective view showing another embodiment of the lifting jig.

FIG. 9 is a schematic cross-sectional view showing the relationship (gripping state) between the lifting jig of the preceding figure and a marginal end portion of the block fixing sheet.

FIG. 10 is a partial perspective view showing another embodiment of the lifting jig.

FIG. 11 is a schematic side view of the previous figure.

12 is a schematic side view showing an open state of an opening / closing member in the lifting jig of FIG. 10;

13 is a schematic side view showing a state in which the lifting jig of FIG. 10 grips a marginal end portion of the block fixing sheet.

[Explanation of symbols]

 S: Block fixing sheet 10: Lower block 12: Support sheet 14: Marginal end (of the block fixing sheet) 16: Upper block 18: Mortar

Claims (4)

[Claims] 1. A support sheet made of a flexible synthetic resin mesh sheet is interposed between a pair of upper and lower concrete blocks arranged in parallel at a predetermined interval from each other with a binder therebetween. A block fixing sheet characterized by being sandwiched between. 2. The block fixing sheet according to claim 1, wherein the binder is made of mortar. 3. A method for producing a block fixing sheet comprising the following steps (A) to (D). (A) The lower concrete blocks are laid at predetermined intervals. (B) A binder is applied to the upper surface of the lower concrete block. (C) A support sheet made of a flexible synthetic resin mesh sheet is placed on the lower concrete block, and the support sheet is bonded to the upper surface of the lower concrete block. (D) A mold is placed on the lower concrete block, and concrete is poured into the mold, or a cured upper concrete block is placed. 4. A peripheral portion of a block fixing sheet in which a support sheet made of a synthetic resin mesh sheet is sandwiched between a pair of upper and lower concrete blocks arranged in parallel and a lower concrete block via a binder. A margin end is provided on at least one side of the block fixing sheet, and in order to lay the block fixing sheet at a predetermined position, the block fixing sheet is lifted in a hanging curtain shape by gripping only one side of the margin end, from the lower end side. A method of laying a block fixing sheet, wherein the block fixing sheet is successively lowered to a predetermined position toward an upper end side.