JPS5894528A - Sheathing wall for polygonal shaft - Google Patents

Abstract

PURPOSE:To raise the strength of corner coupling parts by a method in which a corner coupling part is formed of bent corrugated plates having flanges at their peripheral edges, and the corner coupling part is connected with a straight liner plate in a multi-stage between the flange. CONSTITUTION:A corner coupling part 12 is formed of bent corrugated plates 16 bent by as much as the bent angle of a polygonal sheathing wall 10, and a side edge flange 17 and an end edge flange 18 are provided to the peripheral edge of the plates 16. Then, the sheathing wall 10, a straight liner plate 11, and the corner coupling part 12 are connected with each other and the assemblies are further connected in a multi-stage to form a cylindrical one. Also, the straight liner plate 11 is provided with a corrugated plate 13, having a flange 14 at its side edge and a flange 15 at its end portion. Thus, the flanges 14 and 15 are provided to all circumference of the corrugated plate 13, whereby raising the strength of the assembly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present study relates to a polygonal cedar retaining wall for standing techniques that is installed on an inner wall surface of standing techniques having a polygonal cross section.

Generally, when excavating a tatewaza, retaining walls are used to prevent landslides in the surrounding area. 9. Jffi The enemy's standing technique cross section is circular or oval shaped, but depending on the purpose, a polygonal cross section may be better as a standing technique. The earth retaining wall used for this polygonal cross-section standing technique needs to have a polygonal shape to correspond to the standing technique shape.

On the other hand, for the earth retaining wall, a liner plate having a flange around the periphery of a corrugated plate is usually used. This liner plate has a shape Kfil of a linear liner plate 1 and an arcuate liner plate 2, as shown in FIGS. 1 and 2, due to restrictions on rounding and processing when a corrugated plate is used. Therefore, the shape of the retaining wall defined by the liner plate 1.2 has been a circular arc, a straight line t, or a combination thereof. Therefore, even when a polygonal cross-section is desirable for a retaining wall, a circular cross-section or an oval-shaped cross-section is often used instead. This is because there was no suitable method for connecting the corners of the polygon.

From this point of view, conventionally, KIIIL, which forms a retaining wall for standing techniques with a polygonal cross section, is known, in which a stone structure different from the liner plate is used at the corner of the KIIIL. For example, as shown in Utility Model Application Publication No. 55-40008, 214 is made of a combination structure of a copper plate, a 7 run, and a lip, or a combination structure of a square pipe, a lip, and a fuller '/'/.
An earth retaining wall with a polygonal cross section is constructed using 71 members.

In this conventional earth retaining wall, the L rollers have a rigid structure like the corner joint members described above, so there is a drawback that the characteristics of the liner plate used for other straight sections are lost.

The present invention focuses on the above-mentioned conventional problems, and the liner/L'-
) The earth retaining wall of the structure is made of a metal finagrate structure at the polygonal corner, and by utilizing the wave-cut WIO characteristics, it can be made into a flexible structure that is resistant to external pressure even at the corner, and has high strength. The purpose is to provide an earth retaining wall for polygonal cedar standing techniques that satisfies the following.

In order to achieve the above object, the polygonal earth retaining wall for standing techniques according to the present invention 1jiJK has a linear liner plate with a flange on the periphery of a corrugated plate, and a corner yc of the earth retaining wall is connected to the linear liner plate. It is composed of V@vertical joint members, in particular formed with a corner joint corrugated plate and provided with seven flange around the periphery of the bent corrugated plate, and these linear liner plates and corner joint members are The structure was such that seven lunges were connected to each other to form multiple stages.

With this configuration, the gorge retaining wall exhibits a bending characteristic even at the corners, has a high overall strength tb against external pressure, and can define a free cross section.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Figure 3 shows the overall structure of the earth retaining wall according to the Honjokoji example. This retaining wall! O connects a linear liner (gray) 11 similar to that shown in FIG. It is formed into a cylindrical shape. The linear line beat 11 has a corrugated plate 13 formed by forming a rectangular thin steel plate into a corrugated shape, and seven flange 14 are formed on the side edge when the corrugated sheet is formed. Then, the end of this corrugated plate 13 &
j91! 1 formed by welding a flange 15 to the
For this reason, the entire length of the corrugated plate 13 is
It has a shape with 14 and 15.

-1j, corner joint members 12 connected to the front linear liner plate 11 are provided at the corners of the retaining wall 1G;
This concrete structure is shown in FIG. As shown in the figure, the corner joint member 1! is a bent corrugated plate 1G which is bent by an angle corresponding to the bending angle of the polygonal earth retaining wall 1O.
The plate 16 has a side flange 17 and an end flange 8 at its peripheral edge. The joint member 12 can be easily assembled from the linear liner plate 11 described above. That is, shown in the ms diagram,! Standard type linear liner play)
V-shaped notches 19 are formed in the 7 langes I4 on both sides using a 11 mm (FIG. B). This notch 1
The forming position of liner plate 9 is the center of the bending process, and when forming the retaining wall 10, one end is bent in the longitudinal direction of liner plate 11 so that the grate connecting parts are arranged in a staggered manner in the upper and lower stages. It is installed in an offset position. Note that the notches III do not have to be a pair of VC1a (they may be provided in an appropriate number depending on the curvature of the notches III). The 3° bending angle used for the bending process is 200~
A small radius of curvature of 300R@degrees is required, but it can be easily processed using a mold. That is, the liner plate 11
Since the cross section of the beam is fixed, it is only necessary to make a bending mold of a specified length and perform the angle bending process so that the angle is adjusted by the length of the circular arc part. The cut is made at an angle corresponding to the angle. When the notches II & of the notches 19 are made to be in close contact with each other when the bending process is performed (Fig. 5C), after the straight cut line 2G is formed with appropriate bending strength (Fig. 5C). (See Figure 4), the cut lines 20 are welded and connected to form the final corner joint member 12 as shown in Figure K11144.

In this case, welding is not necessarily necessary since it is only a temporary structure.
A through hole 21 is provided for a connecting bolt.

A linear liner plate 11 and a bent corrugated plate L
- The earth retaining member 111O, which is constructed by connecting the corner joint member 12 having the toe 16, is constructed as follows. As shown in FIG.
Depth according to the width of the liner plate + - J leather 0.5 cumulative)
Dig a standpipe 22 with a rectangular cross section (Fig. 6). A joint member 12 is arranged at each corner of this standpipe 22. Then, insert the linear liner plate 11 into the long side of the standpipe 22,
The end flange 18 of the joint member 12 and the end flange 15 of the linear liner plate 11 are bolted together through the through hole 21. In addition, on the short side of the standpipe 22, the joint member lz phase q
Since the I/+4 edge flange 18 is brought into contact, bolt connection is also attempted at this one location (IIB).

In this way, when the acquisition of IR items is completed, the history will be 0.
．． 5@ Excavate the shaft and assemble the connections in the same way (C in the same figure). At this time, the upper liner plate 11 relay member 1
They are arranged in a staggered manner so that the connecting portion between the two and the lower connecting portion do not match. By repeating the above steps and excavating to the required depth, the retaining wall 10 as shown in FIG. 3 is completed. In this earth retaining wall lO, if the earth retaining wall strength is less than the required strength, use H-shaped steel 23 or FiL as shown in Fig. 3.
It is also possible to increase the strength by disposing a shaped steel or the like in the curve r4.

According to the earth retaining wall 10 having a square cross section, the external pressure at the corner is supported by utilizing the deflection characteristics of the bent corrugated plate 16.

Therefore, it is possible to exhibit the characteristics of the liner plate over the entire earth retaining wall 1G, to have a structure with high overall strength, and to define a free cross section.

In particular, in this embodiment, the corner joint member 12 can be easily molded from the linear liner plate 11, making it easy to manufacture, reducing the number of parts, and significantly reducing weight.

Figures γ to 8 show modified examples of the corner joint members constituting the earth retaining wall 10. Corner joint member 12 of this IK Koji example
The reinforcing plate 23 *jJI is attached to the joint member 12 described above.
] They differ in that they are different. That is, in polygonal cross sections, greater strength is often required than at the corners or sides. Therefore, a reinforcing plate 23 which is curved to close the corrugated recess is welded to the curved portion of the outer surface of the 1 ml corrugated plate.

It is preferable that the length of the -1 plate 23 is at least longer than the length of the bent portion. By providing such reinforcing plates 23, the strength of the corners of the earth retaining wall 10 against earth pressure is increased.

FIGS. 9 and 10 show corner joints fi according to still other embodiments.
llj material 12B is shown. Joint member 12 according to this embodiment
B is formed by butting together a pair of joint pieces 24 and 24B, which are formed by cutting a straight liner plate at its end. Specifically, as shown in FIG.

and the inclined waveform surface 2SB of the other joint piece 24B.

Butt the wavy line 5 against the flat steel plate 26 through the steel plate 26.
CG is a product in which multiple parts 24 and 14B are integrated by welding. In this joint member 12B, the corrugated plate portion 18B is a bent body orthogonal to &! >, such a joint member 12BK can also be used as an earth retaining wall lO that similarly exhibits the deflection characteristics. Particularly in this embodiment, the flat steel plate 26 has a reinforcing function, has sufficient strength, and does not impair the bending action of the corrugated plate portion l@B.

As explained above, since the earth retaining wall according to the present invention is constructed using joint members having bent corrugated plates at the corners, it is possible to exhibit sufficient deflection characteristics without impairing the function of the liner plate. It is possible to meet the high strength requirements with a simple structure.

[Brief explanation of drawings]

Figure 1 is a perspective view of a general linear liner plate, #12
The figure is a perspective view of the arc-shaped liner plate, Figure 3 is a perspective view of the polygonal earth retaining wall for standing techniques according to this embodiment, Figure 4 is a perspective view of the corner joint member, and Figure 5 (→, (M, (9 is a processing diagram of the corner joint member, shown in Fig. 6), (B), (9 is a perspective view showing the structural work 1 of the retaining wall, and Fig. 17 shows the corner joint member of the FIG. 8 is a perspective view showing a modified example, and FIG. 9 is a perspective view showing still another modified example of the corner joint member.
FIG. 10 is an exploded perspective view. IO...Earth retaining wall, 11...Linear liner plate, I2.12m, 12B...Corner joint member, 13...
Corrugated plate, 14.15.17.18... flange. 16.16B...Bending corrugated plate, 22...Standing pipe. Agent Tatsuyuki Unuma (and 2 others) Figure 1 Figure 2 Figure 3r'E1 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] (1) An L-shaped retaining wall is constructed by connecting liner plates and corner joint members to a standing inner wall with a polygonal cross section.
The liner plate is formed into a straight line by providing seven flange on the periphery of a linear corrugated plate, and the corner joint member is formed of a corrugated plate with seven flange forming a corner part by bending or centering joining. shi, the front corner joint parts are mutually $i! A polygonal earth retaining wall for standing techniques, characterized in that it is constructed in multiple stages by connecting 1iJ8-pi linear lychee plates between 7 lunges.