A tubular groundwater drainage blind ditch and its construction technology and application

A groundwater and blind ditch technology, applied in application, soil drainage, infrastructure engineering, etc., can solve problems such as prolonging construction period and increasing project cost.

Active Publication Date: 2015-08-12
SHANGHAI SHEN YUAN GEOTECHN +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the strength of pipe culverts or making culverts on site will greatly increase the project cost and prolong the construction period. Moreover, there is no high-strength finished pipe culvert that can meet the strength requirements of pipe culverts for high-fill landfill sites on the market.

Method used

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  • A tubular groundwater drainage blind ditch and its construction technology and application
  • A tubular groundwater drainage blind ditch and its construction technology and application
  • A tubular groundwater drainage blind ditch and its construction technology and application

Examples

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Embodiment 1-2

[0056] Embodiment 1-2 A construction technique for constructing the underground seepage drainage ditch described in Embodiment 1-1. The process is carried out in full accordance with the steps of the process described in the "Summary of the Invention" above. In order to keep the text concise and avoid repetition, only the key operations and technical data of each step are listed below.

[0057] Specific construction steps:

[0058] In step 1, the lower bottom width, upper bottom width and depth of the foundation trench 90 are 3.30m, 10.0m and 5.0m respectively, and the bottom surface of the foundation trench 90 should ensure that the longitudinal slope is 2%;

[0059] In step 3, the thickness of the base layer 20 is 30cm;

[0060] In step 4, the distance between the left and right gabion piers 60a, 60b is 80cm;

[0061] In step five, the support angle of the bottom layer 20 of the foundation trench to support the pipe culvert 30 is 120°;

[0062] In step 6, the top surface ...

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Abstract

The invention discloses a pipe type underground water drainage blind ditch. The structure is optimized and improved on the basis of an existing pipe type underground water drainage blind ditch in a landfill. A left gabion pillar and a right gabion pillar are symmetrically arranged on the two sides of a pipe culvert, a flexible unloading body is arranged between the left gabion pillar and the right gabion pillar and arranged over the pipe culvert, the top face of the flexible unloading body is flush with the top face of the left gabion pillar and the top face of the right gabion pillar, and a load transmission layer covers the top faces of the left gabion pillar, the right gabion pillar and the flexible unloading body. The blind ditch has the advantage that the pipe culvert cannot be broken under the action of the high filling load on the upper portion of the blind ditch, the blind ditch is suitable for being arranged under the landfill, especially a high landfill, and is used as an underground water drainage structure for the landfill, and it is ensured that the underground water stably drains out of the landfill.

Description

technical field [0001] The invention relates to a tubular groundwater seepage blind ditch and its construction technology and application, and belongs to the technical field of groundwater seepage drainage in landfill sites, to be precise, it belongs to the tubular groundwater seepage blind ditch underground in high fill landfill sites and Its construction technology and technical field of application. Background technique [0002] In recent years, domestic large-scale landfill construction projects such as comprehensive utilization of "low hills and gentle slopes", peak shaving and valley filling, and land reclamation generally fill all or part of the original trenches under the site to form a kind of artificial landfill. site. The long-term deformation and stability of such landfill sites are greatly affected by the distribution of groundwater after the site is formed. If a large amount of groundwater accumulates under the landfill site and cannot be effectively discharg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/10E02B11/00E01F5/00
Inventor 梁永辉苏志鹏水伟厚朱建锋陈国栋李睿陈学张斌卜崇鹏王勇华徐传召张继文郑建国
Owner SHANGHAI SHEN YUAN GEOTECHN
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