JPH08144284A - Landslide protection wall timbering - Google Patents

Abstract

PURPOSE: To simplify a temporary construction, and to reduce the quantity of a steel material by bonding a waling material formed in a frame structure and a strut material and increasing rigidity. CONSTITUTION: A plurality of waling main materials of a waling material 21 are installed along a landslide protection wall. Brackets 13 are mounted among the adjacent waling main materials while strut main materials are combined with the waling main materials through the brackets 13. Connecting materials 14 crossed at right angles with the waling main materials are set up mutually at intervals. Parallel materials 15 parallel with the waling main materials are fitted among the end sections of the connecting materials 14. Tie rods 16 are stretched obliquely to the brackets 13 from the end sections of the parallel materials 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mountain retaining support for excavation work as a foundation work such as construction of a basement floor of a building or construction of an underground structure.

[0002]

2. Description of the Related Art As shown in FIG. 8, a mountain retaining support is constructed by a main beam 2 of a rising member along a retaining wall 1 and a main beam of a girder which is connected to the rising main member 2 so as to be orthogonal thereto. It consists of material 3 and so on.

In the drawing, 4 is an adjusting material for adjusting the length, 5 is a giraffe jack 5 for giving a preload, 6 is a main material for hitting, 7 is a hitting piece, 8 is a corner piece, and 9 is a jack reinforcing piece. , 10 are intersection pieces. 11 is an intermediate pile. The construction of the mountain retaining wall 1 is not limited to the case of the H-shaped steel / lateral sheet pile or sheet pile system as shown in the figure, but is also various such as the case of a steel pipe pile or a concrete column pile.

FIG. 9 shows the relationship of force to earth pressure.
As the excavated portion is large and the depth becomes large, the intervals between the main beams 3 of the beam are narrowed as shown in FIG. 10, and the number of the intermediate piles 11 is increased.

On the other hand, in order to secure a large space between the main beams 3 for cutting and to obtain a large working space, it is desirable to increase the rigidity of the waving, but the main material 2 having the waving has a large rigidity. It is conceivable to use a member or increase the number of batted main materials 6 as shown in FIG.

[0006]

In the method of raising the rigidity of the main material 2 itself by raising the steel material, the steel material becomes large in size and heavy in weight, so that it is extremely difficult to assemble the supporting materials. In addition, it is troublesome to work even with a method of increasing rigidity by reinforcing by flint.

An object of the present invention is to solve the above-mentioned problems of the conventional example, and to effectively increase the rigidity of the upholstery material, thereby providing a mountain retaining support work capable of simplifying temporary installation and reducing the amount of steel material. To do.

[0008]

In order to achieve the above-mentioned object, the present invention is, firstly, in a mountain retaining support which is composed of an uprising member and a beam member, which is used as a frame structure. Secondly, the waving material is a frame in which the waving main material and the joining parts of the waving main material and the beam members are framed in the trapezoidal shape of the waving main material. A frame structure made of wood, No. 3
In addition, the frame material is a connecting material that is angulated and orthogonal to the main material, and a parallel material that is hung between the ends of the connecting material and that is angulated and parallel to the main material,
Or a tie rod which is angulated from the end of the parallel material and obliquely hung on the joint between the main material and the beam material, or
The gist of the uprising member is that it has a frame structure with a truss structure.

[0009]

According to the present invention as set forth in claim 1, since the upholstery member has a frame structure, the rigidity of the upholstery member can be effectively enhanced, and the beam member and the intermediate pile are provided. A large space can be secured because it does not need to be increased.

According to the second aspect of the present invention, in addition to the above-mentioned action, the frame structure is framed in a trapezoidal shape, whereby the trapezoidal diagonal member portion can effectively disperse the stress against earth pressure. Becomes

According to the present invention of claim 3, further,
Although the frame structure has a trapezoidal frame structure, the number of members can be reduced, and the tie rod can be used as a material for adjusting the length and tension.

According to the fourth aspect of the present invention, the rigidity of the uprising member can be effectively increased by using the truss structure as the frame structure.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a plan view of an essential part showing a first embodiment of a mountain retaining support work of the present invention, and FIG. 2 is a plan view of the same as above.

In the present invention, as shown in FIG. 2 as well, as a mountain retaining support work, a material 12 to be laid along the mountain retaining wall 1 and this material 12 is provided.
It is composed of a main member 3 of the beam to be erected by connecting to the main body 2, and the waving member 12 is a main member 2 of the waving member and a joint portion between the main member 2 of the waving member and the main member 3 of the shaving beam. The frame structure is composed of the brackets 13 which are angulated between the brackets 13 and the frame members 18 which form a trapezoidal frame with respect to the main member 2.

[0015] As a frame material for forming such a trapezoidal frame,
A connecting member 14 that is angulated and orthogonal to the main member 2, a parallel member 15 that hangs between the ends of the connecting members 14 that are parallel to each other with this interval, and is parallel to the main member 2 and this parallel member. A tie rod 16 slantingly extends from the 15th end to the bracket 13.

The connecting member 14 and the parallel member 15 can be made of the same H-shaped steel material as the main member 2 by raising the tie rod 16, and the tie rod 16 shown in FIG.
As shown in FIG. 5, the threaded portion 16a is provided in the middle so that the tension and the length can be adjusted.

The tie rod 16 is rotatably connected to the ends of the bracket 13 and the parallel member 15 by pin connection. FIG. 4 shows a joint metal piece 17 for this connection.

In this way, the upholstery material 12 forms a frame structure with the upholstery material 12 and the frame material 18 that is framed in a trapezoidal shape with respect to the main material 2, and as shown in FIG. There is also a dispersion of force, which makes it possible to effectively deal with earth pressure.

The intermediate pile 11 is as shown in FIG.
Although it may be extremely small compared with the conventional example of FIG. 10, if the frame member 18 is suspended and supported by the suspending member 19 as shown in FIG. 6, the intermediate pile 11 can be omitted.

FIG. 7 shows a second embodiment of the present invention.
The uprising member 12 has a frame structure by assembling it as a truss structure.

Even in the case of the upholstery member 12 having such a truss structure, the rigidity of the upholstery member 12 can be effectively increased, and it is not necessary to increase the number of beam members and intermediate piles so that a large space can be obtained. That is, the same as in the first embodiment.

[0022]

As described above, the mountain clasp support of the present invention effectively increases the rigidity of the upholstery material even in a large-scale excavation work without increasing the number of beam members and intermediate piles. In addition, it is possible to facilitate temporary construction and reduce the amount of steel material.

[Brief description of drawings]

FIG. 1 is a plan view of a main part showing a first embodiment of a mountain clasp support work of the present invention.

FIG. 2 is an overall plan view showing a first embodiment of the mountain retaining support work of the present invention.

FIG. 3 is a plan view of a tie rod used in the present invention.

FIG. 4 is a front view of a joint metal piece used in the present invention.

FIG. 5 is an explanatory view showing the transmission of force in the first embodiment of the mountain clasp support work of the present invention.

FIG. 6 is a side view showing an example of the suspension bearing of the first embodiment of the mountain clasp support work of the present invention.

FIG. 7 is an overall plan view showing a second embodiment of the mountain retaining support work of the present invention.

FIG. 8 is a perspective view showing an outline of a general mountain retaining support work.

FIG. 9 is an explanatory diagram showing the transmission of force in the case of general mountain retaining support work.

FIG. 10 is an overall plan view showing one of conventional examples.

FIG. 11 is an overall plan view showing another conventional example.

[Explanation of symbols]

1 ... Mountain retaining wall 2 ... Raised main material 3 ... Girder main material 4 ... Adjusting material 5 ... Kirin jack 6 ... Firing main material 7 ... Firing piece 8 ... Corner piece 9 ... Jack reinforcing piece 10 ... Crossing part Piece 11… Intermediate pile 12… Rise material 13… Bracket 14… Coupling material 15… Parallel material 16… Tie rod 16a… Screw joint 17… Joint hardware 18… Frame material 19… Suspending material

Claims (4)

[Claims] 1. A mountain retaining support structure comprising an uprising member and a beam member, wherein the uprising member has a frame structure. 2. The waving material comprises a waving main material and a framing material with which the waving main material and the beam members are trapped in the trapezoidal frame between the connecting portions of the waving main material and the beam members. The mountain clasp support work according to claim 1, which has a frame structure. 3. The frame material includes a connecting member which is angulated and orthogonal to the main member, a parallel member which is hung between the ends of the connecting member and parallel to the main member, and a main member which is angulated from the parallel member end. The mountain retaining support according to claim 1 or 2, which comprises a tie rod slantingly hooked to a joint between the timber and the beam. 4. The mountain retaining support according to claim 1, wherein the uprising member has a frame structure with a truss structure.