JPS6168997A - Underground common duct - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an underground communal pipe that accommodates a plurality of pipes such as pull pipes, water pipes, gas pipes, sewer pipes, and hot water pipes for district heating.

0. Conventional technology A rectangular underground common ditch constructed using the open cut construction method above the road is known.

0 Invention is free of charge J: 5 Problems VC is constructed underground of a completed road in a conventional communal ditch.
However, since it is an open construction method, it has the disadvantage of increasing the cost of destroying the road and restoring it again after the underground common ditch is completed.

However, in response to the increase in road earth pressure caused by the use of modern tray transport vehicles, the underground I4, which has a rectangular cross section, has the disadvantage of having to increase the strength of its trench walls.

Borrowing of the InventionO Means for Solving All ProblemsBased on the specified invention of the present application, opposing vertical spaces provided at the same temperature can be constructed using a shield construction method such as a buried pipe construction method. It communicates as a joint in the details, and within the group of circular surface tubes.
, pipes, cables! Two tracks.

It is divided into multiple chambers for accommodating pipes, etc.

Based on the present invention in Item 2, a branching chamber adjacent to the curve of the circular section tube is provided in the intermediate part of the group of circular section tubes, and the branching chamber and the conduit chamber having a υ number of 11 and having a circular cross section g circle are provided. communicate with at least a portion of.

Effect of the Invention A plurality of circular cross-section pipe groups (1 (branch) are connected and continuous via a shaft il+, and are divided into multiple pipes 1a by Yokonin 4 and Tarikonin (Jun etc.), and a plurality of pipes Two chambers are constructed within the circular section tube group,
Completion of underground common conduit.

Cables to be led to each building, etc., are placed vertically (1
), branching within hole (6), manhole (2), shielding plate tz
It is pulled out through holes t and a (yt) in r.

In the invention of Section 2 of λ damage, 1 branch office J41 is attached, and the intermediate part between shaft 1 + l fi 1 is also branched, and cables and pipes are connected. Make it possible to withdraw.

The shaft is an iron/concrete box constructed on site using the open cut method, and after the construction is completed, the top wall (ia) will be formed and kept in an occupied state.Top wall (1)
In a), the manhole f is 1゛1J long, but the
013) t Blocking week board i3+”k Spraying. Pit (1)
Is there enough space to construct a shield for 1 yen bIr surface q? The shape and volume are M. Also, does gas ' Google pipes such as water pipes, electric power houses, electric wires such as telephone lines? drawer f
Yc hole (51%'1 well 17) side U (lb
) above i5 term 41ia)' is provided.

Mata TLT that connects opposing vertical fil fi1 in a group of circular cross-section tubes: 1 yen 1 A side snow detail 1 t (1 7-
Ruto ° construction method (resin concrete pipe widely used for sewerage using the Ruto method, 8%
By using cast iron pipes, etc., costs can be reduced. Depending on the cables and conduits to be accommodated, the desired ridged cross-section of the conduit chamber varies, so we range from the large diameter of 5mφ and 3mφ ring-shaped cast iron pipes to the small diameter of 20amφ and 10mφ vibe-shaped pipes. I diameter, length, material etc.? These are selected and used as appropriate.

Shaft (1) side wall + tb) VCH, circular section pipe + 1ll-
A pipe hole (9) is provided for the insertion hole (Iζ). When the circular cross section tube group 11o1 is completed, ((c) is the gap between the circular cross section hole 111 at both ends and the tube hole? Close it with cement etc. Group of cross-sectional pipes (101 built shafts [11k ground sealed in condition).

Tubular space inside circular section tube group 1IO1? , circular section tube 1
111 VC inserted part f/J tongue yj, (F in 1st grade,
A plurality of conduit chambers A, B, C, D, etc. are formed.

-SrLAlthough it is possible to create a room that is close to a sealed state, as in the second embodiment shown in FIG.
l, Connecting horizontal rods (/31 combination = lattice-like framework), horizontal rods (can also be used to fix cables, conduits, etc. on the toughs, support plates (cutting, partition plates, etc.) Even at the entrance, the required VC, cables and conduits to accommodate were constructed.

You can divide and pay by type. 9. If I can pickle it, I'll work on it.
Except for special cases, each conduit room A, B...? There is no need for them to be separated from each other.

Next T/c, in F1 shown in Fig. 5, the partition means 1'4 is connected to concentric tubes with different diameters (for example, FR
P pipe) +20A) (20Bl (20C) and partition rod (
, 1! 1 and the conduit room A l + A of the Kaichi group.
2..., the conduit chambers B1+B2... of the second group, and the conduit chambers C1+C2... of the third group, are concentric with r, and are concentric with diameter X, FRP i -, J +2OA) +
20B) +2oC) and the partition rod 4 form a circle hyr plane tube group (
10) are divided into two categories.

In front of each circular section (1) Made of FRP inserted into J!
? 201 edge t, FRP in the adjacent circular section tube group cave
Contact with the edge of the fissure canal edge, Vc Ex, canal chamber I of each group
A.

A2...) (Bl, B2...) (C1lC2...
) and circular section'! It is possible to maintain a Vc sealed state between the near i1 and the inner wall.

In this case, three groups of conduit chambers (C1, C2
...) as the technical support for 11IIIfr Kisenmi/2 to each building, each house, etc., and the central fil1 branch? It is convenient to accommodate gas pipes, electric power lines, etc. as unnecessary direct pipes and wires, making it easy to draw them in individually through one branch pipe 041 adjacent to the same cross-section pipe (IIIVc).
When using Dainin's circular section pipe g+12, the center can be used as a passage for maintenance. ◎ For FRP fi pipes 2111vc with different diameters, the diameter can be changed to 1. It is convenient to prepare standard products that correspond to the inner dimensions of concrete pipes and fishing pipes that are mass-produced in one go, as well as medium and small dimensions. be.

For wiring and piping, as shown in Figure 6, a vertical hole (5) is inserted into each house, store, or building, but a building, etc. is installed in the middle of the inner cross section IIQI. If there is a need to draw out a couple of pipes and pipes (PI t-), a branch office 1J4J? will be added. Branch office A4 is a space and shape that allows for the branching and drawing out of pipes that require branching and drawing. It takes a lot of skill to be able to maintain the same size.

It is made by burying cast-in-place concrete or a concrete secondary product manufactured by predetermined shape VC in the branch meeting WrII tunnel, and a drawer (λI) that intersects with the special large hole 4 and a circular section pipe (10 Make a Vc cut using a diamond cutter, etc. Connect the manhole O to hole 4 and connect it with the building rat. It is possible to guide L multiple cables and conduits from the darkroom B... to the branch I.'!The first branch is a circular section pipe (i position (of the plane of Iυ)). For example, the upper surface and the side surface can be adjacent to Vc.

In addition, the conduit room (A, B, C) may'cfl +CI, C
2"・) When Vc is sealed to each other, when -, branch chamber α
41 Connect multiple conduit rooms Vc, and connect necessary cables to the conduit room F branch office in No. 9 and 9, and branch them to conduit (P)' to connect buildings, etc. after completion of the underground common conduit. P1r is removed, B is controlled, and j is easily added to Vc.

Effects of the invention (1) The conventional method uses an open cut construction method, but the present invention uses a shield construction method? Since this method is adopted, there is no need for digging, backfilling, and restoring the road surface.

(2) Compared to the conventional rectangular cross section, the circular cross section is able to withstand external pressure 1゛ (that is, the pressure) even if it is thin, and does not require the strength of an octagonal cross section. That is, the present invention is superior in strength to conventional systems.

(3) In the method of the present invention, a resin concrete pipe,
Since it is possible to use factory-produced products such as pipes and cast iron pipes, it is economically and technically advantageous.In addition, the construction period can be shortened, and underground common pipes can be provided at an extremely low cost.

(4) Form hole for shield method? Since the group of circular cross-section pipes is continuous through the pipe, it is easy to branch out the pipes by using hole preparation, and it is easy to connect underground pipes in urban areas to buildings, houses, etc. make it easier.

(5) In the invention of Paragraph 2 of the present application, in addition to providing a branch office at a desired l1fA location VC, wiring and piping can be branched into two lines at appropriate locations between hole preparations, and wiring and piping in urban areas can be This will enhance the effectiveness of the underground joint pipes.

[Brief explanation of drawings]

@Figure 1 is a cross-sectional view of an underground pipeline in which the present invention is implemented. Fig. 2 is a vertical cross-sectional view taken along line S-8II in Fig. 1, and Fig. 3 is a view taken from h1 at line 1@5ff (-5IIl). Fig. 4 is a second embodiment of the partitioning means. 51st longitudinal cross-sectional view showing
2A is a vertical cross-sectional view showing the third embodiment. (1) Vertical pipes...Circular section tube group (River...Circular section tube teXO...Partitioning means■...Branch Kaisho

Claims (1)

[Claims] Paragraph 1: A plurality of hard shafts are provided at appropriate intervals, and the distance between adjacent hard shafts is
A ground connected by a group of circular cross-section pipes that can be constructed using a shield construction method, and the inside of the circular cross-section pipes is divided into a plurality of conduit chambers for accommodating conduits such as pipes and cables, and electric lines. China joint conduit. Section 2: Provide a plurality of well shafts at appropriate intervals, connect the adjacent well shafts with a group of circular cross-section pipes that can be constructed using the shield method, and connect the inside of the circular cross-section pipes with conduits such as pipes and cables. , the pipe is divided into a plurality of conduit chambers for accommodating electric lines, a branch chamber is provided adjacent to the outer peripheral surface of the circular section tube, and the branch chamber is divided into a plurality of conduit chambers of the circular cross section tube. An underground common conduit characterized by being connected to a part of the pipe.