JPH0115744Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is applied to a block surrounding a drainage basin for rainwater or sewage that is installed at the bottom of a slope in a residential development site.

[Conventional technology]

As shown in Fig. 4, the conventional box enclosing block uses a triangular box enclosing block 20 which is integrally molded with concrete and has triangular sides on both sides, and the height dimension of the block is 2 times the diameter of the pit. ~3 times as much is commercially available as a standard product. Therefore, even when the height of the slope 10 is high, the installation state shown in FIG. 5 only protects the block 20 from landslides from the back and both sides.

[Problem that the invention attempts to solve]

However, there is a growing tendency among residents who have purchased land for residential development to use the land more widely by reclaiming the slope 10 vertically in Figure 5 (symbol B in the figure indicates the state after reclamation); There was a drawback that the enclosure blocks 9 and 20 were buried in the soil.

As an improvement to this, a box-shaped block 30 with only the front side open, as shown in FIG. 6, may be considered. Although it is possible to prevent the box 9 from being buried in the box-shaped block 30, when the slope height is high, strength measures such as increasing the wall thickness of the block 30 or increasing the number of reinforcing bars are necessary to withstand earth pressure. Countermeasures were required, which resulted in an increase in product weight, and the on-site installation required lifting equipment and multiple workers, resulting in increased costs. In addition, if you want to match the block height to the slope height, you can either build a wooden frame and pour concrete on site without using the existing block, or you can make blocks of various heights in advance at a factory. Methods such as responding to bulk orders are considered, but the former requires a large amount of work on site, and the latter has problems such as the complexity of product management at the factory.

[Means for solving problems]

A cage enclosure comprising a bottom block having a hole for mounting a cage, a plurality of stacked blocks stacked on the top surface of the bottom block to form a U-shaped frame, and a fastening member for fixing the stacked blocks to the bottom block. The purpose is to solve the above problem by creating a block.

[Effect]

After installing a bottom block at the top of the basin and pouring fresh concrete into the gap between the basin and the basin, and fixing it, the required number of stacking blocks are sequentially placed on the top of the block according to the height of the slope. By stacking and fastening members, a bottom block and a stacked box enclosing block are formed to prevent the pit from being buried by earth and sand.

〔Example〕

An embodiment of the present invention is shown in FIGS. 1 to 3. The bottom block 1 forms the bottom plate of the box enclosing block, and has a hole 1a for mounting the box in the center, and a flat plate in which a plurality of inserts 3 for tightening bolts 4 are embedded at predetermined positions on the top surface. It is a concrete molded product.

The stacking block 2 forms the side plate of the box enclosing block, and is a U-shaped concrete molded product with a constant thickness, and has holes 2a for tightening bolts corresponding to the arrangement of the inserts 3 of the bottom block 1. ,
Further, the hole 2a has recesses 2b and 2c at the lower and upper ends, respectively, for releasing the head of the tightening bolt.

The tightening bolt 4 is for fixing the stacking blocks 2 and the bottom block, and the stacking blocks 2 to each other, and has a female thread on the head 4a for screwing into the upper tightening bolt 4. The tightening bolt 5 is for fixing the uppermost stacking block 2 and is equivalent to a commercially available hexagonal head bolt.

The general installation method at the construction site is to level the ground around the upper end of the box 9, then install the bottom block 1 in a horizontal position with the insert 3 side facing up, and connect the box mounting hole 1a of the block to the box 9. Fill the gap with fresh concrete 7 and fix it.

Thereafter, the stacking blocks 2 are sequentially stacked up to the required height.

First, the first stacked block 2 is fixed to the bottom block 1 using tightening bolts 4 and washers 6. Next, the second stacked block 2 is stacked on top of the first stacked block 2 and similarly fixed using the tightening bolt 4 and washer 6. The blocks are then piled up in the same manner, and the top stacked block 2 is fixed using a tightening bolt 5 and washer 6 to form a cage block. If necessary, the recess 2c is filled with mortar 8 to prevent loosening and make it waterproof.

Finally, complete the backfilling work around the enclosure block.

Depending on the local situation, after the bottom block 1 and the plurality of stacked blocks 2 are integrated using tightening bolts 4, 5 and washers 6, fresh concrete is inserted into the gap between the cell attachment hole 1a and the cell 9. You may perform the work in the order of filling and fixing 7.

Further, the tightening bolts 4 and 5 may be a single bolt (not shown) having a length to tighten a plurality of stacked blocks 2, and may be changed as appropriate.
Furthermore, by making the top layer of the stacked blocks 2 into a blind plate shape (not shown), a box-shaped box enclosure block whose height is variable can be formed, and it can be made into one plane of the reclaimed residential land.

[Effect of idea]

By using the stacking-type box enclosing block according to the present invention, (1) By simply adjusting the number of stacked blocks, the slope height of various residential lots can be easily approximated, and the box can be prevented from being buried. Slopes can be reclaimed.

(2) Stacking blocks can be easily increased or decreased for bolt tightening and the height of the blocks can be changed at any time.

(3) Since it is divided into a bottom block and multiple stacking blocks, the weight of each product is light, and no lifting machinery is required during on-site installation.
Can be easily worked with only human power.

It has the following effects and can solve conventional problems.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention, with Figure 1 being a side cross-sectional view showing the installed state of the stacked cage enclosing blocks, and Figure 2 being a plan view of Figure 1 seen from above. FIG. 3 shows a cross section taken along the line AA in FIG. 2. FIG. 4 is a perspective external view of a conventional triangular cage enclosing block, and FIG. 5 is a side sectional view showing the installation state of the triangular cage enclosing block shown in FIG. 4. FIG. 6 shows a perspective external view of the box-shaped enclosure block. 1...Bottom block, 1a...Made mounting hole, 2
... Stacking block, 2a ... Tightening bolt hole,
2b, 2c... Recess for releasing the head of the tightening bolt, 3...
...insert, 4,5...tightening bolt, 4a...
Tightening bolt head, 6... washer, 7... ready-mixed concrete, 8... mortar, 9... square, 10... slope, 20... triangular square enclosing block, 30... box-shaped square enclosing block .

Claims (1)

[Scope of utility model registration request] A block enclosing a basin for rainwater or sewage drainage installed at the bottom of a slope in a residential development site includes a bottom block having holes for attaching the basin and a plurality of blocks stacked on top of the bottom block to form a U-shaped frame. 1. A stacked residential lot enclosure block comprising a stacked block and a fastening member for fixing the stacked block to the bottom block.