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

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...

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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.

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