JPH08159337A - Piping laying trench and construction method therefor - Google Patents

Abstract

PURPOSE: To shorten a piping work period by maintaining higher efficiency and manpower saving for a work to construct a trench and lay piping. CONSTITUTION: Piping is laid on racks 18 fitted to the side wall of a lower trench 12. The trench 12 is, then, suspended and laid on a foundation, thereby eliminating a piping work in the trench 12. Thereafter, the piping 20 is laid on suspension members 26 connected to the ceiling wall of an upper trench 22, and this upper trench 22 is lowered to be jointed to the lower trench 12. As a result, a trench construction work is completed, and the piping 20 does not need to be laid thereafter. Also, a piping work can be completed simply by jointing the piping 20 laid in every block.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe laying trench buried underground and a method for constructing the trench.

[0002]

2. Description of the Related Art Usually, a trench for laying a pipe is constructed by the procedure shown in FIGS.

First, as shown in FIG. 5, the ground is excavated and flooring is performed, the base 40 and the side wall 42 form 44 are assembled, and concrete C is poured.

Next, when the curing and curing of the concrete C of the base 40 and the side wall 42 is completed, the form 44 is removed, and as shown in FIG. 6, a supporting structure for supporting the bottom plate 48 is constructed by the pipe support 54 and the slab 50 is constructed. The mold 52 is assembled and concrete C is placed.

Next, when the concrete C is cured and hardened, the pipe support 54, the bottom plate 48 and the form 52 are removed to complete a box-shaped trench 56 as shown in FIG. Here, as shown in FIG. 8, a rack is constituted by the pipe support member 58 inside the trench 56, and the pipe 60 is laid on the pipe support member 58.

However, the work of constructing and removing the support work with the pipe support 54 requires time and effort, and it is not easy to shorten the construction period. Further, the work of assembling the rack for supporting the pipe 60 with the pipe support member 58 also takes time.

[0007]

SUMMARY OF THE INVENTION In consideration of the facts described above, an object of the present invention is to improve the efficiency and labor of trench construction and piping laying work, and to shorten the construction period of piping work.

[0008]

A trench for pipe laying according to claim 1 comprises a lower trench placed on an installation base and having an upper opening, and a pipe laying unit integrally provided on a sidewall of the lower trench. An upper trench that is joined so as to cover the opening of the lower trench to form a pipe laying space, and a suspension member that is disposed on a ceiling wall of the upper trench.

According to a second aspect of the present invention, there is provided a method for constructing a pipe laying trench, in which a pipe is laid in a pipe laying unit provided on a sidewall of a lower trench having an upper opening, and the lower trench having the pipe laid. A step of suspending and installing on a base, and a step of laying a pipe on a suspension member arranged on a ceiling wall of an upper trench that is joined to cover an opening of the lower trench to form a pipe laying space, Suspending the upper trench and joining it to the lower trench;
It is characterized by having.

[0010]

In the pipe laying trench according to claim 1, the pipe laying unit is integrally provided on the side wall of the lower trench placed on the installation base so that the pipe can be laid before the pipe laying trench is constructed. Has become.

The upper trench is joined to the lower trench so as to cover the upper opening to form a pipe laying space. A suspension member is arranged on the ceiling wall of the lower trench, and the suspension member can be joined to the lower trench in a state where the pipe is laid.

Therefore, after the work of placing the concrete in the upper slab is completed, it is not necessary to wait for the curing of the concrete and the removal of the formwork, and it is not necessary to assemble the pipe support member in the trench to lay the pipe. .

In the method for constructing the pipe laying trench according to the second aspect, first, the pipe is laid in the pipe laying unit provided on the side wall of the lower trench. By suspending the lower trench on which the pipe is laid and installing it on the substrate, the work of laying the pipe in the trench can be omitted.

Next, a pipe is laid on the suspension member arranged on the ceiling wall of the upper trench and is hung and joined to the lower trench. This completes the pipe laying trench,
After completion, it is not necessary to lay pipes, and the laying work is completed simply by connecting the pipes installed in each block.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a U-shaped lower trench 12 constituting a trench 10 according to this embodiment is installed on a floor-mounted base 14. This lower trench 12
A joint mortise 16 is formed as a joining means in the opening above.

A ladder-shaped rack 18 is integrally attached to the side wall of the lower trench 12, and pipes 20 are preliminarily laid in multiple layers. The lower trench 12 is suspended by a not-illustrated crane or the like, and the base 14
It is set on top.

Further, as shown in FIG. 3, the lower trench 1
The upper trench 22 that covers the opening 2 is U opened downward.
The opening is formed with a joint tenon 24 that engages with the joint tenon 16.

From the ceiling wall of the lower trench 12, a suspension member 26 hangs down, and a holder portion 26A formed at the tip of the suspension member 26 can hold the pipe 20.

Next, a construction method for laying pipes using the trench 10 according to this embodiment will be described.

As shown in FIGS. 1 and 2, first, a pipe 20 necessary for the rack 18 of the lower trench 12 is laid on the ground. Next, the lower trench 12 is suspended and placed on the substrate.

Here, as shown in FIGS. 3 and 4, the pipe 20 is laid on the suspension member 26 of the upper trench 22 so as to cover the opening of the lower trench 12, and the joint tenon 16 and
24 pieces are joined together to form a pipe laying space.

Therefore, it is not necessary to assemble the pipe support member in the trench 10 and install the pipe 20. Further, the laying work is completed only by connecting the pipes 20 installed in each block.

In this embodiment, the method for constructing one block of the trench 10 has been described. However, the steps as described above are sequentially repeated to extend the span, or the lower trench 12 is installed in several blocks first. Then, the upper trench 22 may be placed.

The blocks of the trench 10 are connected to each other by inserting a PC steel material into a sheath hole which is penetrated through the trench 10 and tightly connecting both ends of the PC steel material with a nut and an anchor plate in units of several blocks. , The blocks are crimped to each other and the joint portions are connected.

[0025]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, it is possible to improve the efficiency and labor saving of the construction of the trench and the pipe laying work, and to shorten the construction period of the pipe construction.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a procedure for constructing a pipe laying trench according to the present embodiment.

FIG. 2 is a cross-sectional view showing a procedure for constructing a pipe laying trench according to the present embodiment.

FIG. 3 is a cross-sectional view showing a procedure for constructing a pipe laying trench according to the present embodiment.

FIG. 4 is a cross-sectional view showing a procedure for constructing a pipe laying trench according to the present embodiment.

FIG. 5 is a cross-sectional view showing a procedure for constructing a conventional pipe laying trench.

FIG. 6 is a cross-sectional view showing a procedure for constructing a conventional pipe laying trench.

FIG. 7 is a cross-sectional view showing a procedure for constructing a conventional pipe laying trench.

FIG. 8 is a sectional view showing a procedure for constructing a conventional pipe laying trench.

[Explanation of symbols]

 12 Lower Trench 18 Rack (Piping Installation Unit) 22 Upper Trench 26 Suspension Member

Claims (2)

[Claims] 1. A lower trench placed on an installation base and having an upper opening, a pipe laying unit integrally provided on a side wall of the lower trench, and a pipe laying space joined to cover the opening of the lower trench. A pipe laying trench comprising: an upper trench that constitutes the upper trench and a suspension member that is disposed on a ceiling wall of the upper trench. 2. A step of laying a pipe in a pipe laying unit provided on a side wall of a lower trench having an upper opening,
A process of suspending and installing the lower trench on which a pipe is laid on a substrate, and a suspension member arranged on a ceiling wall of an upper trench that is joined so as to cover an opening of the lower trench and forms a pipe laying space. A method for constructing a pipe laying trench, comprising: a step of laying a pipe in the step; and a step of suspending the upper trench and joining the upper trench to the lower trench.