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Assembled type double-pipe seepage and drainage blind ditch and construction method of roadbed seepage and drainage structure

A seepage and drainage, prefabricated technology, applied in drainage structures, water/sewage treatment, side ditch/curbstone, etc., can solve the problems of slow construction, short service life, poor drainage capacity, etc.

Active Publication Date: 2020-02-28
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first object of the present invention is to provide a prefabricated double-pipe drainage blind ditch to solve the technical problems of poor drainage capacity, short service life and slow construction in the blind ditch in the prior art
[0006] The second object of the present invention is to provide a construction method for roadbed seepage and drainage structure, so as to solve the technical problem of slow construction speed of roadbed seepage and drainage structure in the prior art
[0007] The third purpose of the present invention is to provide a roadbed seepage and drainage structure to solve the technical problems of poor drainage capacity, short service life and slow construction in the roadbed seepage and drainage structure in the prior art

Method used

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  • Assembled type double-pipe seepage and drainage blind ditch and construction method of roadbed seepage and drainage structure
  • Assembled type double-pipe seepage and drainage blind ditch and construction method of roadbed seepage and drainage structure
  • Assembled type double-pipe seepage and drainage blind ditch and construction method of roadbed seepage and drainage structure

Examples

Experimental program
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Effect test

Embodiment 1

[0084] The prefabricated double-pipe drainage blind ditch of this embodiment includes end-to-end connected drainage units, such as figure 1 As shown, the drainage unit includes a first drainage pipe 100, a first filter layer 310, a second drainage pipe 200, a second filter layer 320 and a support assembly 400, and the wall of the first drainage pipe 100 is provided with a second A seepage hole 110, the first filter layer 310 is wrapped on the outside of the first drain pipe 100, the second drain pipe 200 is arranged inside the first drain pipe 100, and the second drain pipe 200 The pipe wall is provided with a second seepage hole 210, the second filter layer 320 wraps the outside of the second drain pipe 200 and forms a cavity between the inner wall of the first drain pipe 100 and the second filter layer 320 The first clear liquid filtered by the first filter layer 310 enters the cavity through the first water seepage hole 110, and part of the first clear liquid is filtered by...

Embodiment 2

[0093] Such as Figure 10 The subgrade seepage and drainage structure shown includes:

[0094] The blind ditch 20, the blind ditch 20 is the assembled double-pipe drainage blind ditch of embodiment 1 or embodiment 2, and the blind ditch 20 is installed at the bottom of the ditch 10;

[0095] The first backfill layer 30, the first backfill layer 30 is located around the blind ditch 20 and the backfill height is higher than the height of the blind ditch 20 by more than 15cm;

[0096] The third filter layer 40, the third filter layer 40 is located around the first backfill layer 30;

[0097] The second backfill layer 50 is located above the first backfill layer 30 and the height of the backfill matches the height of the trench 10 .

[0098] The construction method of the subgrade seepage and drainage structure comprises the following steps:

[0099] (1) Assemble the drainage unit of the assembled double-pipe drainage blind ditch;

[0100] (2) the third filter layer 40 is inst...

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Abstract

The invention discloses an assembled type double-pipe seepage and drainage blind ditch and a construction method of a roadbed seepage and drainage structure. The assembled type double-pipe seepage anddrainage blind ditch comprises drainage units connected end to end; each drainage unit comprises a first drainage pipe, a first filter layer, a second drainage pipe and a second filtering layer, wherein the pipe wall of the first drainage pipe is provided with a first water seepage hole; the first filter layer is wrapped outside the first drainage pipe; the second drainage pipe is arranged insidethe first drainage pipe, and a second water seepage hole is formed in the pipe wall of the second drainage pipe; and the second filtering layer is wrapped outside of the second drainage pipe and forms a cavity between the inner wall of the first drainage pipe and the second filtering layer. The assembled type double-pipe seepage and drainage blind ditch has the advantages of simple structure, capability of being transported to a site after being assembled in advance in a factory, realization of the concept of assembly of all parts, higher assembly speed and efficiency, less labor required forassembly, shorter assembly construction period, lower construction cost and easier quality control.

Description

technical field [0001] The invention relates to the technical field of road seepage and drainage, in particular to a construction method for an assembled double-pipe seepage and drainage blind ditch and a subgrade seepage and drainage structure. Background technique [0002] The road is in the form of a belt, and often needs to span a variety of complex hydrogeological environments, and even a variety of climatic environments. The performance of the road subgrade and pavement will be affected by factors such as the physical and mechanical properties of the soil, topography, stratum conditions, water and temperature. . In order to ensure the long-term stability of the road, in the design of road subgrade and pavement, it is generally necessary to design corresponding countermeasures. Among them, in order to solve the subsidence deformation of the subgrade caused by the reduction of the filling strength of the road subgrade and the softening of the filling layer caused by the ...

Claims

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Application Information

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IPC IPC(8): E03F3/04E03F5/14E01C11/22
CPCE01C11/227E03F3/04E03F5/14
Inventor 石晓娜
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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