A slope replaceable drainage pipe and its construction method

Abstract

The invention discloses a drainage pipe with a replaceable side slope and a construction method thereof. A sector-shaped drainage pipe (2) is connected to the lower portion of a sector-shaped permeable layer (1) to constitute a circle, and a plastic blind groove pipe filter layer (3) is wrapped on the periphery of the sector-shaped permeable layer (1) and the periphery of the sector-shaped drainage pipe (2). A cylindrical filter sieve (4) is wrapped on the periphery of the plastic blind groove pipe filter layer (3), a through hole is formed in the part above a circle of the cylindrical filter sieve (4), and the part below the circle is sealed. At least one layer of geofabric filter layer (5) is wrapped on the periphery of the cylindrical filter sieve (4), and a rigid supporting layer (6) is wrapped on the periphery of the geofabric filter layer (5). A big through hole is formed in the rigid supporting layer (6) in an all-dimensional mode, and pins (7) are inserted in end openings of all the layers to be fixedly connected. The drainage pipe with the replaceable side slope can prevent plugging, and is durable, quick, capable of preventing secondary seepage and capable of replacing the inside structure of the drainage pipe after being used for a period.

Description

Technical field [0001] The present invention relates to a drainage pipe, in particular to a replaceable side slope used for various slopes (including soil and rock slopes, etc.) in the fields of highways, railways, water conservancy and hydropower projects, and the groundwater discharge in the landslide body Type drainage pipe, suitable for both deep and shallow groundwater discharging slopes. Replaceable drainage pipe. The invention also relates to a construction method of the side slope replaceable drain pipe. Background technique [0002] Under the existing technical conditions, the new type of drainage pipes used in the treatment of groundwater discharge in the slope body are all the methods of drilling holes in the drainage pipe to increase water permeability, and then wrapping the geotextile outside the drainage pipe to filter soil particles to prevent the drainage pipe from being blocked. Its shortcomings are: 1) Because the drainage pipe has a small opening rate, the nat...

AI Technical Summary

Problems solved by technology

[0002] Under the existing technical conditions, the new drainage pipes used for the groundwater discharge treatment in the slope body are all drilled on the drainage pipe to increase the water permeability, and then wrap the geotextile outside the drainage pipe to filter the soil particles to prevent the drainage pipe from clogging , and its disadvantages are: 1) Because of the small opening rate of the drainage pipe, the natural drainage capacity of the drainage pipe is insufficient, and the pore water in the slope cannot be effectively drained; 2) Since the drainage pipe is surrounded by holes, it enters from the top The groundwater in the groundwater is easy to form secondary infiltration through the opening in the lower part of the drainage pipe, which affects the drainage effect

3) Since the drainage pipe is an integral design, it cannot be replaced after being blocked for a period of time and loses its drainage effect

Images