JPH05295742A - Method for constructing concrete blocks and concrete slope frame - Google Patents

Abstract

PURPOSE:To allow arranging concrete blocks of ready fabrication effectively and execute the slope frame constructing works effectively. CONSTITUTION:In constructing concrete blocks and a concreted slope frame for stabilization of the slope, anchors 5 are driven in the slope, and a pipe 4 with the ends left open is fitted on the tightened part of each anchor and buried in the natural ground with part of the pipe left exposed. Each concrete block 1 having a through hole penetrating from the oversurface to the undersurface is provisionally installed so that the pipe is inserted in the through-hole, and the anchor is tightened, and the concrete block is installed on the slope.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete block body used for slope protection and a method for constructing a concrete frame.

[0002]

2. Description of the Related Art A frame method for stabilizing slopes is
A method of installing ready-made concrete block bodies on the slope in a grid pattern or a flat block body as a support plate for lock bolts or anchors, and a site where the concrete frames are assembled by arranging the bars on site. There is a concrete concrete frame construction method. When constructing an off-the-shelf co2 cleat block, a heavy block (500-4
(000 kg) is lifted by a tow truck and temporarily installed on the slope and tensioned with an anchor placed on the ground, or the block body is temporarily fixed with a wire rope from the upper part of the slope and the anchor is drilled and the anchor is installed. Tension and install the block body. In cast-in-place concrete framing, reinforcement work and formwork assembly are performed on slopes, and concrete is placed directly on the ground where concrete is placed. The legal frame does not slip off the slope.

[0003]

Problems to be Solved by the Invention The above conventional frame construction method has the following problems. When constructing a ready-made concrete block body, the block body slides down before it is temporarily fixed, so it was necessary to temporarily secure it with a wire rope or support it with a tow truck. Further, when the anchor is inserted and temporarily fixed to the preceding anchor, the strength of the anchor is weak and the block body slides down. Regarding the cast-in-place construction method, considering the reinforcement work, the formwork work, and the concrete training period, the construction period was long and was not suitable for emergency construction, or it was difficult to shorten the construction period.

[0004]

An object of the present invention is to solve the above problems, and an object of the present invention is to provide a concrete block body in which ready-made concrete block bodies can be efficiently arranged, and construction work of a legal frame can be carried out efficiently. It is to provide a method for constructing a concrete legal framework.

[0005]

According to the present invention, in a concrete block body and a concrete frame construction method for stabilizing a slope, an anchor is placed on the slope, and a tubular pipe having both ends opened is used to tension the anchor. Part of the pipe, the pipe is partially exposed to be buried in the ground, the concrete block body having a through hole penetrating from the upper surface to the lower surface is temporarily installed so that the pipe is inserted into the through hole, The concrete block body and the concrete method frame construction method are characterized in that the anchor is tensioned and the concrete block body is installed on a slope.

[0006]

First Embodiment The present invention will be described below with reference to the drawings. <B> Structure of Law Frame (FIG. 1) The law frame A in FIG. 1 is composed of a ready-made intersection block 1, a vertical frame 2 and a horizontal frame 3 connecting the intersection blocks 1 and 1.
3 is formed in a cross shape. This will be described in detail below.

<B> Intersection Block (FIG. 4) The intersection block 1 is a ready-made concrete block body manufactured in a factory or the like, and a plurality of overhanging arms 11 are formed in accordance with the shape of the intersection of the method frame A. ing. Further, a through hole 12 penetrating from the upper surface to the lower surface is formed in the center of the intersection block 1. Since the through hole 12 is a hole for inserting the positioning pipe 4 described later, its diameter is set according to the outer diameter of the pipe 4. The intersection block 1 may be formed in a substantially rectangular parallelepiped shape without forming the projecting arm 11.

<C> Pipe (FIG. 1) The pipe 4 is a cylinder whose both ends are open, and has both a temporary fixing function for the intersection block 1 and a function as an anchor 1 insertion hole.

<D> Anchor (FIG. 1) As the anchor 5, a known ground anchor can be adopted, and the head of the anchor 5 is a known fixing tool 7 such as a wedge or a screw.
Fix with.

<E> Formwork (FIG. 1) The formwork 6 is a well-known formwork having flexibility for constructing a horizontal frame and a vertical frame on site, and is arranged, for example, as a pair facing each other. It is composed of a gate-shaped or double girder-shaped spacer that foldably connects the mesh plates.

[0011]

Next, the method for constructing the legal framework of the present invention will be described. <B> Anchor placement (Fig. 2) Anchor 5 is placed at the intersection of the sloped frame, that is, at the planned location of the intersection block 1.

<B> Pipe set (Fig. 3) Each anchor 5 extending from the surface of the earth is covered with the pipe 4,
Drive into the ground and harden the pipe 4 with grout. Then, the ground contact portion of the intersection block 3 on the slope is leveled with mortar or the like. It is important that the upper part of the pipe 4 projects from the slope. In addition, when greening the inside of the legal frame A, a net material such as lath wire mesh is laid on the entire surface of the construction slope.

<C> Temporary installation of the intersection block (FIGS. 3 and 4) The intersection block 1 is installed at a planned intersection of the legal frame A using a crane or the like. When installing the intersection block 1, the anchor 5 and the pipe 4 are inserted into the through hole 12 of the intersection block 1. The installed intersection block 1 is locked to the pipe 4 at the same time as it is installed, so that the sliding block 1 is prevented from sliding down. Also,
Since the intersection block 1 is arranged at the position of the pipe 4 which is installed in advance, it can be accurately and efficiently installed at the set position.

<D> Construction of Horizontal Frame and Vertical Frame (FIG. 1) The above-mentioned form 6 is assembled between the projecting arms 11 of the intersection block 1 temporarily provided on the slope. At this time, reinforcing bars are arranged in the form 6 as in the conventional case. Then, mortar is sprayed into the mold 6 to construct the horizontal frame 3 and the vertical frame 2 that connect the intersection blocks 1 and 1.

<E> Anchor tension (FIG. 1) After hardening of the mortar, the tension portion of the anchor 5 extending from the through hole 12 of the intersection block 1 is tensioned with a predetermined load and fixed by the fixing tool 7. Regarding the tension of the anchor 5, if it can be judged that the strength of the ground is sufficient, it may be performed when the intersection block 1 is temporarily installed.

[0016]

[Embodiment 2] In the present embodiment, a large one is used for the intersection block 1, the vertical frame 2 and the horizontal frame 3 are not separately constructed, and the overhanging arm 11 of the intersection block 1 is set to the vertical frame 2 and the horizontal frame. The vertical frame 2 and the horizontal frame 3 are discontinuous. In this embodiment, since the legal framework A can be constructed only by installing the intersection block 1, the construction can be carried out in a short period of time.

[0017]

[Third Embodiment] The intersection point block 1 of the first and second embodiments is connected to the frame portion of the legal frame A in the cross direction, but the intersection point block 1 of the present embodiment is connected to the frame of the multi-directional legal frame A. To do. By using this intersection point block 1, it is possible to construct a legal frame A other than the lattice form.

[0018]

Since the present invention is as described above, the following effects can be obtained. <A> When the intersection block is installed, the intersection block is locked to the pipe installed in advance, so that the sliding of the intersection block can be reliably prevented. Therefore, the construction safety is further improved.

<B> By using an intersection point block at the intersection point of the method frame, it is possible to omit the formation of a complex formwork for the intersection point. Further, by first placing the anchors at the intersection block installation positions, the intersection blocks can be installed in accordance with the anchor placement positions, and horizontal and vertical frames may be created between the intersection blocks. Therefore, the legal framework construction work can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a legal frame according to the present invention.

[Fig. 2] Side view of anchor placement

FIG. 3 is a side view when the intersection block is temporarily installed.

FIG. 4 is a perspective view of an intersection block of the present invention.

Claims (1)

[Claims] 1. A method of constructing a concrete block body and a concrete method frame for stabilizing a slope, in which an anchor is placed on the slope, and a tubular pipe with both ends opened is sheathed on the tension part of the anchor, Partly exposed and buried in the ground, a concrete block body having a through hole penetrating from the upper surface to the lower surface is temporarily installed so that the pipe is inserted into the through hole, and the anchor is tensioned to concrete block body. The method of constructing a concrete block body and a concrete method frame, which is characterized by being installed on a slope.