JPH0461932B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial technical field] The present invention is a construction work in which a slope block is installed on a sloped ground surface and a chestnut stone is laid inside the slope block to prevent the slope from collapsing. This relates to the installation method of the legal frame blocks used in the

[Prior art]

Conventionally, when installing a legal frame block on a sloped ground surface, as shown in Fig. 9, the part indicated by A is cut out from the ground surface 1, the crane is placed on top of it, and then the part B is cut out. , C, and D. Next, cut out the part shown as E, place the crane on top of it again, and lay the sandstone blocks and chestnut stones in the order shown as F and G. Then, the construction work is carried out in the same order as cutting H and K, I, J, L, M and laying stone. This is done according to the progress of the next cut.

When constructing the above-mentioned slope, as shown in Figure 10, after cutting the sloped ground surface 1 and clearing the slope, a crane 3 is placed on the flat area 2, and the transported slope block 4 is placed under the slope. As shown in Fig. 12, the crane 3 sequentially installs a slope block consisting of a top block 5, left and right hard ground blocks 6, and a bottom block 7, and lays chestnut stone 17 inside the slope block. are doing.

In this case, cutting the ground surface 1 above, clearing the slope,
Foundation concrete construction, transportation of legal framework block 4,
Installation, installation of scaffolding 8 shown in Fig. 11, driving of anchors, filling of concrete, and installation of rock fall prevention fence 9 are required, and since the work is at height, a parent rope 24 is provided for the worker as shown in Fig. 10. In addition, during the installation work of the above-mentioned legal frame block 4, the crane 3
Since it was not possible to cut out the part where the wafer was placed, there were problems in that work efficiency was poor and equipment costs were high.

[Purpose of the invention]

The present invention was made in order to solve the above-mentioned conventional problems, and provides a method for installing a legal framework block that enables manual installation of a legal framework block and does not require the installation of a crane or scaffolding. The purpose is to improve the work efficiency and reduce the work cost.

[Structure of the invention]

The method of installing the slope block of the present invention to achieve the above object is to cut out the sloped ground surface at predetermined intervals, clear the slope, and then attach the top block to a reverse driving anchor driven into the upper part of the slope. With the lower end block hanging from the lower end of the suspension bolt with a turnbuckle suspended from the top block via the anchor cap, install the left and right hard ground blocks, and permanently install the lower end block and the hard ground block. After fixing with the anchor, remove the reverse anchor, and with the next lower end block suspended from the lower end of the hanging bolt suspended from the lower end block, install the left and right hard ground blocks, and then attach the next lower end block and This method is characterized by alternately repeating the work of fixing solid ground blocks with permanent anchors and successively installing the next slope blocks, and the work of cutting out the ground surface at predetermined intervals and clearing the slope surface. .

According to the above method, for example, after cutting the ground surface corresponding to the construction range of two tiers of slope blocks and clearing the slope, for example, from the upper end block, lower end block, and left and right hard ground blocks of about 70 kg per block, The slope blocks are installed in order from the top of the cut and cleared slope downwards, and then the ground surface further below is cut, the slope is cleared, and the slope blocks are installed again. By repeating the process alternately, there is no need to deploy a crane.
Furthermore, the legal frame blocks can be installed without having to work at heights.

〔Example〕

An embodiment of the installation work of the slope block according to the method of installing the slope block of the present invention will be described below with reference to the drawings. In the present invention, height intervals C ₁ , C ₂ , C ₃ . . . from above to below with respect to the ground surface 1 are shown.
The ground surface 1 is cut in the order of C ₈ and C ₉ and the slope is cleared, but each cut and slope is cleared as B ₁ , B ₂ , B ₃ ...B ₈ , B ₉ , respectively. A legal framework block is set up, and chestnut stones are laid within that legal framework block, and the order flow is as follows:
- Shown in Figure B.

Next, as shown in FIG. 2-A, which is an enlarged side sectional view of the X portion of FIG. 1-A, for example, the height interval
C ₆ , and then cut out the ground surface 1 at predetermined intervals in three stages of C _6-1 , C _6-2 , and C _6-3 , and cleared the slope.
In the meantime, after cutting C _6-1 and clearing the slope, B _6-1 ,
The process of installing the legal frame blocks and laying the stone in B _6-2 is repeated as shown in the flowchart shown in Figure 2-B.

Therefore, we cut out a predetermined interval like C _6-1 above,
After clearing the slope, a reverse stroke anchor 10 is driven into the upper part of the slope as shown in Fig. 3-B, and each top block 5 is secured to the upper part of the reverse stroke anchor 10.
The lower end block 7 is suspended from the lower end of the suspension bolt 14 to which the turnbuckle 13 is attached in the middle as shown in Figs. 4-A and 4-B via the U-shaped anchor cap 12 as shown in Fig. 3-A. In the lowered state, install the left and right solid ground blocks 6,
At this time, the L pin 21 prevents lateral displacement.

Next, the lower end block 7 and the left and right hard ground blocks 6
and are fixed with permanent anchors 11. At this time, fine adjustments are made by tightening the turnbuckles 13 of the hanging bolts 14. At this time, a plastic camber 15 is inserted into the main anchor 11 for the purpose of preloading the main anchor 11.

In addition, wooden cambers 16 are provided to prevent damage to the corner portions of the suspension bolts 14 of the top end 5 and bottom end blocks 7, respectively.

Next, the reverse anchor 10 and the wooden camber 16
is removed, concrete is filled in the main anchor 11 shown in FIG.

With the above steps, the installation of the legal frame block B _6-1 and the laying of the stone stone in Figure 2-A are completed. Next, the turnbuckle 13 is installed on the lower end block 7 as shown in Figures 4-A and 4-B. Hanging bolt 14 with
is suspended via the anchor cap 12, and with the next lower end block 7 suspended from its lower end, the left and right hard ground blocks 6 are installed, and the main anchor 11
After fixing these, remove the hanging bolts 14 of the slope block B _6-1 , fill the slope block B _6-1 with concrete, and then place the chestnut stones 17 inside the framed slope block B _6-2. Lay down. In this example, after installing the B _6-1 legal frame block, chestnut stones are laid inside the _{B 6-1} legal frame block.
and B _6-1 after installing the legal frame block of B _6-2 .
Chestnut stones may be placed inside the legal framework block of B _6-2 .

Here, as shown in FIG. 6, the crown concrete 18 indicated by B _6-0 is constructed without using formwork.

Next, after cutting and arranging the slope as shown in C _6-2 in Figure 2-A, for example, the slope block B _6-3 is installed below the slope block B _6-2 as described above. This is done by repeating the process.

By repeating the above operations, for example, when the installation of the lower end legal frame block B _6-7 in Figure 2-A and the laying of the stone are completed, the lower end of the hanging bolt 14 that hangs the lower end block is fixed as shown in Figure 7. The stop portion is inserted into the sheath pipe 19, the foundation concrete 20 shown as _B6-8 in Figure 2-A is poured, and the suspension bolts 14 are removed. As shown in the figure.

〔Effect of the invention〕

As explained above, in the method for installing a legal frame block of the present invention, a crane is not used for installing the legal frame block, so a flat area for crane placement is not required, so the installation of the legal frame block is completed, While laying the chestnut stones, it is possible to cut out the ground surface below the stones, which has the effect of improving work efficiency.

In addition, since the work of arranging the framework blocks and laying the stone stones does not involve work at heights, there is no need for various safety equipment, which has the advantage of enabling safe work, and overall the work requires This means that costs can be significantly reduced.

[Brief explanation of the drawing]

Figure 1-A is a side cross-sectional view of a sloped ground surface illustrating the construction sequence in installation work using the method of installing a slope block of the present invention, Figure 1-B is a flowchart of the sequence shown in Figure 1-A, Figure 2-A is an enlarged side sectional view of the main part indicated by arrow X in Figure 1-A, and Figure 2-B is an enlarged side sectional view of the main part indicated by arrow X in Figure 1-A.
The order flow diagram of Figure A, Figure 3-A is a front view showing the top block when the legal frame block is installed, Figure 3-B is a side sectional view of Figure 3-A, and Figure 4-A is the initial view. Fig. 4-B is a side sectional view of Fig. 4-A, Fig. 5 is a front view showing the installation of the legal frame blocks up to the second stage, The figure is a side sectional view showing the construction status of the crown concrete.
The figure is a side cross-sectional view showing the condition of foundation concrete being placed, Figure 8 is a flow diagram showing the work procedure of the method of installing a legal frame block of the present invention shown in Figure 2-A, and Figure 9
The figure is a side cross-sectional view of a sloping ground surface explaining the construction sequence when installing a conventional slope block. Figure 12 is a front view of the main parts of the constructed legal frame block. 1...Ground surface, 5...Top block, 6...Solid ground block, 7...Bottom block, 10...Reverse anchor, 11...Permanent anchor, 12...Anchor cap, 13...Turnbuckle , 14...
...Hanging bolt, 17...Kuriishi.

Claims (1)

[Claims] 1 After cutting the sloped ground surface at specified intervals and leveling the slope, the lower end block is suspended from the lower end of the hanging bolt that is suspended from the upper end block which is secured to the reverse anchor driven into the upper part. After installing the left and right solid ground blocks and fixing the lower end block and solid ground block with the permanent anchors, remove the reverse anchor and attach the next lower end block to the lower end of the hanging bolt suspended from the lower end block. In the suspended state, install the left and right hard ground blocks, fix the next lower end block and solid ground block with permanent anchors, and install the next slope blocks one after another. A method of installing a legal frame block that alternates with the work of arranging the surfaces.