JPH0892963A - Stone-clad construction method within the legal frame - Google Patents

Abstract

(57) [Abstract] [Purpose] By adopting the method of attaching the stone block, which is a precast cobblestone plate, it is possible to improve the safety of construction, shorten the construction period and reduce the construction cost, and at the same time, use the rear surface as a ground treatment. By spraying poorly mixed mortar on the mountain and shaping it manually, the gap between the back ground and the stone block can be completely filled, and drainage from the back ground can be secured. [Structure] Soil cement 3 is sprayed to a predetermined height in a grid-shaped method frame 1 and troweled, and a stone block 4 is hung by a crane or the like so as to be parallel to the method surface. Placed in the frame 1, the stone block 4 and the law frame 1
The joints 6 between and are filled with mortar 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a stone in a legal frame in which a legal frame is formed and a stone is to be installed inside, for protection of the slope.

[0002]

2. Description of the Related Art For example, in a slope protection work for cut-off slopes of site preparation work (plant site) in areas with many landslides where the Group 3 metamorphic rocks (black metamorphic rocks) are the base rocks, they are arranged in a grid pattern. In-frame boulder tensioning, in which boulders are stuck in the legal frame, may be adopted.

[0003] Conventionally, such a cobblestone in-the-flame method has been one in which a cobblestone is laid by kneading with concrete in a method frame which is constructed on a slope by in-situ casting or precasting.

[0004]

In this way, by putting the cobblestones by kneading in the legal frame, the work time on the slope becomes long in terms of work efficiency, and the weight of the cobblestones, concrete, etc. It is inefficient because it requires a lot of crane work.

In terms of safety, there is a high risk that materials such as cobblestones and concrete will fall on the slope, and manual work on the slope has a bad working environment and the risk of workers falling down is great. There is a problem because work time (construction period) becomes long.

It is an object of the present invention to provide a stone-clad construction method in a legal frame which eliminates the inconveniences of the above-mentioned conventional examples and improves the safety of construction and shortens the construction period and reduces the construction cost.

[0007]

In order to achieve the above-mentioned object, the present invention firstly sprays soil cement up to a predetermined height in a method frame arranged in a lattice, and after trowel finishing,
Suspend the stone block so that it is parallel to the slope with a crane, store it in the slope frame, and fill the joint between the slope block and the slope frame with mortar. Second, spray cement cement. Before, set the processed rebar into the legal frame as a ruler, thirdly, for the mortar to fill the joint, first fill the joint with the joint material and then fill it.
Fourthly, a hole for inserting a water draining pipe is formed in the stone block by removing the box, and after the stone block is installed, the water draining pipe is inserted into this hole and the mortar is filled in the surrounding space. This is the summary.

[0008]

According to the present invention as set forth in claim 1, a method of sticking a stone block, which is a precast cobblestone plate, is adopted, whereby the working time can be shortened and the safety can be improved.

[0009] Further, soil cement is sprayed to a predetermined height within the legal frame as a ground treatment, but by spraying poorly mixed mortar on the back ground in this way and manipulating it manually,
There is no risk that the mortar will not be fully spread compared to the case where normal mortar grout is installed after the stone block is installed, drainage of the back ground can be secured, and even if mortar adheres to the legal frame, it can be easily wiped off.

According to the second aspect of the present invention, in addition to the above-mentioned action, by setting the processed rebar as a ruler in the legal frame, the ruler can be used as a standard for the spraying height of soil cement spraying. it can.

According to the third aspect of the present invention, the amount of mortar filled in the joint can be reduced.

According to the fourth aspect of the present invention, the hole for inserting the water draining pipe is formed in advance in the stone block by removing the box, so that the water draining pipe can be easily installed later. it can.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1-3, FIG. 5, and FIG. 6 are vertical side views showing each step of the method of lining a stone in the method frame of the present invention, and FIG. 4 is a plan view of the fourth step.

In FIG. 1, reference numeral 1 is a method frame arranged in a lattice shape, which is formed by casting in situ or by precasting. Reinforcing rods whose ends are bent into a hook shape are set as rulers 2 in such a manner that the bent portions are hooked on the method frame 1.

Then, as shown in FIG. 2, as a ground treatment, a soil spray 3 (C = 40 kg /
m ³ ) is sprayed up to a predetermined height based on this ruler 2,
After removing ruler 2, trowel finish.

As shown in FIG. 3, a stone block 4 manufactured by placing a cobblestone 4a of 15 to 20 cm in a concrete plate 4b of 20 cm in thickness is placed parallel to the slope with a truck crane or the like. The sling wire 5 is adjusted so as to be hung, and the sling wire 5 is hung and housed in the method frame 1.

In this way, as shown in FIGS. 4 and 5, joints 6 are formed between the inner circumference of the method frame 1 and the outer circumference of the stone-clad block 4.
The joint material 7 made of plastic sponge or the like is filled in the joint 6 at a depth of about 3 cm, and the mortar 8 is filled on the joint material 7.

The filling of this mortar 8 is performed by manually filling the joint with the iron trowel using the mortar kneaded on-site, but in addition to this, the mortar (1: 3) produced in the ready-mixed concrete factory is used by the mortar pump. After pressure-fed to the whole, the joint may be shaped and cleaned manually with a metal iron.

A hole 9 for inserting a water draining pipe is formed in advance in the stone-clad block 4 by removing the box, and after the stone-clad block 4 is installed, a water drain pipe 10 made of a vinyl chloride pipe is provided in the hole 9. Insert and mortar 11 in the gap around it
To fill.

The suction-preventing mat 12 may be installed in advance at a position corresponding to the tip of the drainage pipe 10.

[0021]

As described above, the method of lining a stone in a legal frame according to the present invention adopts a method of attaching a stone block, which is a precast cobblestone plate, to improve the safety of construction and shorten the construction period.・ It is possible to reduce the construction cost, and by spraying a poorly mixed mortar onto the back ground as a base treatment and shaping it manually, it is possible to completely fill the gap between the back ground and the stone block, and drain the back ground. Can be secured.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a first step of a method for stone lining in a legal frame according to the present invention.

FIG. 2 is a vertical cross-sectional side view showing a second step of the in-frame stone-clad construction method of the present invention.

FIG. 3 is a vertical cross-sectional side view showing a third step of the in-frame stone-clad construction method of the present invention.

FIG. 4 is a plan view showing a fourth step of the method of constructing a stone in a legal frame according to the present invention.

FIG. 5 is a vertical cross-sectional side view of an essential part showing a fourth step of the method of constructing a stone in a legal frame of the present invention.

FIG. 6 is a vertical cross-sectional side view showing a fifth step of the stone-clad in-frame construction method of the present invention.

[Explanation of symbols]

1 ... Law frame 2 ... Ruler 3 ... Soil cement 4 ... Stone-clad block 4a ... Cobblestone 4b ... Concrete plate 5 ... Sliding wire 6 ... Joint 7 ... Joint material 8 ... Mortar 9 ... Hole 10 ... Drain pipe 11 ... Mortar 12 ... Suction prevention mat

Front page continuation (72) Inventor Chikushi Kusumoto 6-13 Nakamachi, Naka-ku, Hiroshima-shi, Hiroshima Kashima Construction Co., Ltd. Hiroshima branch (72) Takayuki Kanagawa 6-13 Nakamachi, Naka-ku, Hiroshima-shi, Hiroshima Kashima Construction Co., Ltd. Company Hiroshima Branch

Claims (4)

[Claims] 1. A method of spraying soil cement to a predetermined height in a lattice-shaped method frame, finishing with a trowel, and then suspending a stone block with a crane or the like so as to be parallel to the method surface. A method for constructing stone in a legal frame, characterized in that the joint between them is filled with mortar in the joint between the stone block and the legal frame. 2. The method for lining a stone in a legal frame according to claim 1, wherein the processed rebar is set as a ruler in the legal frame before spraying the soil cement. 3. The stone-clad construction method within the legal frame according to claim 1 or 2, wherein the mortar to be filled in the joints is first filled with the joint material and then is filled therewith. 4. A hole for inserting a drainage pipe is formed in a stone block by removing a box from the stone block, and after the stone block is installed, the drainage pipe is inserted into this hole and mortar is filled in the surrounding space. The method for constructing a stone in a legal frame according to claim 1 to claim 3.