A roadbed seepage drainage blind ditch

A technology for seepage and drainage and subgrade, which is applied in roads, infrastructure engineering, rails, etc. It can solve the problems of water-absorbing materials being deformed by pressure, uncontrollable construction quality, and a large number of constituent materials, so as to achieve good water permeability, improve assembly construction efficiency, and structure high intensity effect

A technology for seepage and drainage and subgrade, which is applied in roads, infrastructure engineering, rails, etc. It can solve the problems of water-absorbing materials being deformed by pressure, uncontrollable construction quality, and a large number of constituent materials, so as to achieve good water permeability, improve assembly construction efficiency, and structure high intensity effect

CN110747874BActive Publication Date: 2021-06-29RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +2
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  • A roadbed seepage drainage blind ditch
  • A roadbed seepage drainage blind ditch
  • A roadbed seepage drainage blind ditch

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Embodiment Construction

[0022] The present invention is introduced below by accompanying drawing.

[0023] In this application, it should be noted that the direction along the extension of the subgrade seepage blind ditch is defined as the longitudinal direction, and the width direction away from or close to the subgrade seepage blind ditch is defined as the transverse direction.

[0024] figure 1 The cross-sectional structure of the roadbed seepage drainage blind ditch 10 according to the present invention is shown. Such as figure 1 As shown, the subgrade seepage drainage blind ditch 10 includes a base 1 and a frame body 2 assembled with the base 1 . The base 1 is arranged on the base of the roadbed, and is laid along the longitudinal extension of the roadbed, and the frame body 2 is installed and connected to the upper part of the base 1 . In one embodiment, the base is made of PVC material (rigid polyvinyl chloride). The base 1 has good stability, and the installation and connection between ad...

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Abstract

The invention provides a roadbed seepage and drainage blind ditch, comprising: a base; a frame body detachably mounted on the base and configured as a semicircular ring; the frame body is evenly distributed with a number of seepage holes; and A bellows between the base and the frame body; wherein, the middle area of ​​the upper end surface of the base is provided with an arc-shaped groove, and the lower part of the outer wall of the bellows is closely mounted on the arc-shaped groove Inside, the upper part of the outer wall of the bellows is in close contact with the inner wall of the frame body, and a through hole is provided at the trough position of the bellows in close contact with the frame body, and the groundwater in the subgrade can pass through the seepage The holes and the through-holes penetrate into the bellows and out of the roadbed.

Description

technical field [0001] The invention belongs to the technical field of road bed drainage, and in particular relates to a road bed seepage drainage blind ditch. Background technique [0002] In high-speed railway construction projects, deep-buried seepage and drainage blind ditches need to be laid in the subgrade to collect and drain groundwater to lower the groundwater level, so as to solve the problem of subgrade deformation or uneven settlement caused by subgrade groundwater. [0003] At present, in high-speed railway projects, deep-buried reinforced concrete pipes or perforated double-wall corrugated pipes are usually used, and the upper part uses reverse filter layer and filter layer backfill to carry out seepage and drainage of the subgrade base. However, these seepage drainage methods still have some disadvantages. For example, the existing seepage and drainage structure is complicated, the composition materials are various, the construction cost is too high, and the ...

Claims

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Application Information

Patent Timeline
29 Jun 2021
Publication
CN110747874B
IPC
E02D19/10; E01B1/00
CPC
E01B1/008; E02D19/10; E02D2300/0007; E02D2300/001
Inventors
马伟斌; 胡京涛