JPS5847099Y2 - Earth retaining panels used in trench excavation method - Google Patents

Description

[Detailed description of the invention] The present invention relates to an earth retaining panel used in a trench excavation method, and more specifically, the panel main body and the wedge-shaped lower end are formed separately, and the panel main body and the wedge-shaped lower end are connected by an appropriate connector. The present invention relates to an earth retaining panel that is characterized in that it can be connected through the earth retaining panel.

In the trench excavation method, in particular, guide rails having guide grooves for inserting panels on both longitudinal sides of the trench are placed facing each other at a position corresponding to the end in the width direction of the trench to be excavated, and the spacing between the guide rails is maintained. Furthermore, panels are fitted over the guide rails that are aligned in the length direction of the groove and are adjacent to each other, while excavating and removing soil from below the opposing panels and between them. A trench excavation method (Japanese Patent Laid-Open No. 53-4831
No. 0) uses earth retaining panels as shown in Figure 1.

In FIG. 1, reference numerals 1 and 1 are guide rails in which panel insertion guide grooves 2 are provided on both sides in the longitudinal direction of the groove.
3 is a retaining panel fitted between the guide rails.

The retaining panel 3 has a panel main body portion 3a and a wedge-shaped lower end portion 3b.
are integrally formed.

Therefore, if the excavation depth of the groove is deeper than the height of the panel 3, another panel must be newly added to follow the excavation depth, but in such a case, the wedge-shaped lower end 3b of the panel The tightness of the connecting part with the lower panel,
This is undesirable as it causes various problems such as durability.

Therefore, from this point of view, conventionally, a panel 4 of a different standard without the wedge-shaped lower end portion was prepared.

However, preparing two types of panels with different standards in this way requires a lot of manufacturing effort and is extremely uneconomical.

In view of this, the present invention has been developed to form the panel main body and the wedge-shaped lower end separately and construct them as separate units, thereby making it possible to make the panel main body of a single standard. This saves manufacturing time and allows for mass production.

Hereinafter, the present invention will be described in more detail with reference to illustrated embodiments.

FIG. 2 is an enlarged perspective view of the connected portion in the unconnected state, FIG. 3 is an enlarged perspective view of the connected portion in the connected state, and FIG. 4 is an overall perspective view in the connected state.

In the figure, reference numeral 5 denotes a panel main body, in which a required number of pipe holes 6, 6, . . . are vertically arranged with open upper and lower ends.

Further, the panel main body 5 is formed so that both left and right side surfaces 5', 5' can be moved up and down into the panel insertion guide groove of the guide rail.

For example, it may have a shape that corresponds to the guide groove for inserting the panel.
Alternatively, a pulley 7 may be added to the shape as shown in FIG. 2.

The pulley 7 is used to more smoothly move the inserted portion up and down.

8 is formed separately from the panel main body and is constructed as a single unit.

It has a wedge-shaped lower end, and protrusions 9, 9, .

10.10 is a connecting tool for connecting the panel main body 5 and the wedge-shaped lower end 8, and in the illustrated embodiment, bolt insertion holes 11a are provided at both ends of the joint surface of the panel main body 5 and the wedge-shaped lower end 8. A protruding plate 11.11 having a hole therein is provided protrudingly, and is connected with a bolt 12 and a nut 13.

However, it is possible to employ any suitable connector as the connector regardless of this embodiment.

To explain the method of connecting the panel main body part and the wedge-shaped lower end part constructed as described above, first, the panel main body part 5 and the wedge-shaped lower end part 8, which were separately transported to the trench excavation site, are connected to the protrusion 9 of the wedge-shaped lower end part 8, 9...... to the panel main body part 5
After inserting the bolt 12 into the lower end of the pipe hole 6 and pushing it until the joint surface of the panel main body 5 and the wedge-shaped lower end 8 come into close contact, then inserting the bolt 12 into the bolt insertion hole 11a of the protruding plate 11.11, The nut 13 is screwed together to complete the connection and form the earth retaining panel.

Note that the subsequent usage method is the same as the conventional method.

Since the present invention configures the panel body and the wedge-shaped lower end as separate units as described above, there is no need to manufacture two types of panels with different standards as in the past, and the panel body can only be manufactured with the same standard. It can be mass-produced and greatly contributes to labor saving.

In addition, although the panel body and the wedge-shaped lower end can be transported separately, they are not bulky, and each panel body has a light weight, making it easy to transport, which has great practical effects. be.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional earth retaining panel used in the trench excavation method, Fig. 2 is an enlarged perspective view of the connected portion of the earth retaining panel according to the present invention in an unconnected state, and Fig. 3 is an enlarged perspective view of the connected portion of the earth retaining panel in a connected state. The enlarged perspective view, FIG. 4, is also a perspective view of the whole in the connected state. 5...Panel main body, 6...Pipe hole, 8...Wedge-shaped lower end, 9...Protrusion, 1
0...Connector.

Claims (1)

[Scope of utility model registration request] In an earth retaining panel used for the trench excavation method, the required number of pipe holes with open upper and lower ends are installed vertically, and both left and right sides are movable up and down into the guide groove for inserting the panel of the guide rail. and a wedge-shaped lower end are formed separately, and a protrusion to be inserted into the lower end of the pipe hole of the panel main body is protruded from the upper surface of the wedge-shaped lower end to enable connection. Earth retaining panels used in construction methods.