Tunnel side wall drainage net

Abstract

The invention provides a tunnel side wall drainage net which is composed of a plurality of arc-liked vertical pipe pieces, a plurality of arc-like horizontal pipe pieces, a plurality of four-way connectors and a plurality of drainage tubes, wherein the plurality of arc-like vertical pipe pieces are covered with water hole belts, and the plurality of arc-like horizontal pipe pieces are covered with water hole strips. The four-way connectors are formed by vertical connecting pipes and horizontal connecting pipes. The vertical pipe pieces are connected with the vertical connecting pipes of the four-way connectors, and the horizontal pipe pieces are connected with the horizontal connecting pieces. A grid structure is formed by combining and splicing of the plurality of vertical pipe pieces, the plurality of horizontal pipe pieces and the four-way connectors. The vertical pipe piece at the lowest end of the grid structure is connected with the drainage tubes, wherein two ends of the drainage tubes are not sealed. The tunnel side wall drainage net has the advantages that seepage deposited on a side wall is avoided due to an open type grid, and underground construction operating safety is improved. An included angle formed by the horizontal pipe pieces and the side wall can be adjusted, symmetrical water flow can be fast guided, and over large point location seepage pressure of the side wall can be prevented. The drainage tubes are clear in guiding, dewatering is thorough, shock strength is high, fluid viscous resistance is low, the assembly is simple, and use is convenient.

Description

technical field [0001] The invention relates to the field of side wall waterproof and drainage construction in underground engineering and tunnel engineering, in particular to a tunnel side wall drainage network. Background technique [0002] In the mountainous areas where the tunnel passes, there are often ecological environment protection objects such as forests and fertile fields on the ground. Therefore, the importance of controlling water leakage from the tunnel structure and protecting the groundwater environment is obvious. At the same time, groundwater has many hazards to tunnels. It not only increases the difficulty of tunnel construction and reduces the construction quality, but also acts together with various operational wastewater, which is the main factor that endangers the durability of tunnel structures. On the other hand, if there is water leakage in the tunnel structure or road surface, it will greatly reduce the service life and functions of various facili...

AI Technical Summary

Problems solved by technology

In view of the incompatibility of the previous waterproof and drainage methods with groundwater seepage conditions, resulting in many methods and poor effects, which could not meet the construction requirements, on the basis of on-site construction experience and theoretical analysis, combined with field tests, the tunnel side wall network drainage pipe was designed Improve the problem of low drainage efficiency at the present stage

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