JPS5847101Y2 - Earth retaining device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an earth retaining device used when burying a sewer pipe, particularly a large-diameter pipe body.

When burying this kind of large-diameter pipe, it is necessary to bury the pipe at a slight angle in order to make the flow smooth.

However, if the ground supporting the pipe is soft, there is a risk that the pipe may shift even if it is installed at an angle, so it is necessary to solidify the foundation by pouring concrete.

However, when pouring concrete, it is necessary to assemble a wooden frame, so extra excavation must be performed to provide space for installing the wooden frame.

Conventionally, in general, 30~
They were excavating with a width of 60cm.

However, excavating this extra width was a difficult task.

This invention was devised in view of the above-mentioned circumstances, and eliminates the need to use wooden frames to solidify the foundation by pouring concrete, thereby eliminating the need for extra excavation to install the wooden frames. To provide earth retention equipment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment of the present invention shown in the drawings will be described in detail below.In FIG.

The device 1 is composed of a seating plate 2 and a strut 3.

In this example, a case is shown in which three seating plates 2 are split on one side, and the seating plates 2 are connected in the vertical direction by connecting fittings 4,
4 and are removably connected.

Seating plate (located on both sides)-2, 2 is threaded part 3
The spacing between the struts 3, 3 can be freely adjusted by means of the struts 3, 3, which are extendable and retractable.

An important structure in the present invention is the seating plates 5, 5 which are detachably connected to the seating plates 2, 2 at the lowermost end.

The outer surfaces of the seating plates 5, 5 are formed as smooth surfaces that are flush with the outer surfaces of the seating plates 2, 2, but the inner surfaces are formed as tapered surfaces 6, 6.
The overall shape is wedge-shaped.

A mounting bracket 7 is attached to the upper end of the formwork seating plates 5, 5.
, 7 are provided.

Bolt holes are provided in the mounting fittings 7, 7, and the formwork seating plates 5, 5 are integrally attached to the seating plate 2.2 using the bolt holes.

8 is a pipe body, and 9 is a concrete foundation.

Since the present invention has the configuration as explained above, when burying the pipe body 8 in the excavated trench 10, for example, if the ground is soft, a concrete foundation is poured.
In this case, a release agent or other appropriate release means is applied to the inner surfaces of the formwork sheeting plates 5, 5.

Therefore, concrete is poured into the excavated trench 10, and the tube body 8 is installed with a slight angle of inclination.

Then, let it cure for a while in that state, and when the concrete 1 and foundation 9 have solidified, hook the wire 11 to the seating brake 1-2, pull out the device 1 from the soil with a backhoe, etc., and fill it with earth in the trench. Just finish it.

Therefore, in order to cast a concrete foundation, not only is there no need for complicated work such as assembling a wooden frame as in the conventional method, but there is also no need to take up space for installing wooden molds, so there is no need for excavation work. will be simplified accordingly.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a cross-sectional view of the entire structure, FIG. 2 is a front view of a formwork seating plate, and FIG. 3 is a side view thereof. 2... Seating plate, 3...
Trunk beam, 5...Formwork seating plate, 6.
...Tapered surface, 8...Tube body, 9...
...Concrete foundation.

Claims (1)

[Scope of utility model registration request] The seating plates are brought into contact with the inner wall surface of the excavated trench, and the opposing seating plates are connected by a telescopic strut, and the formwork seating plate is detachable from the lowermost seating plate. The formwork seating plate has an outer surface that is flush with the outer surface of the seating plate, and an inner surface that is tapered, so that the lower periphery of the pipe body to be buried is formed using the tapered surface. An earth retaining device characterized by having a concrete foundation placed on the surface.