A water collection and drainage system and its construction method

Abstract

A water collecting and draining system comprises a drainage ditch (1), a vertical drainage well (2), a drainage pipe (3), and a water collecting channel (4). The vertical drainage well (2) is respectively connected to the drainage ditch (1) and the drainage pipe (3). The water collecting channel (4) is connected to the drainage ditch (1). A plurality of drainage tubes (201) having different lengths are arranged on the vertical drainage well (2). The vertical drainage well (2) comprises a sand-free concrete pipe (202), a geotextile filtration mesh (203), and a water filtration mesh lining (204). The geotextile filtration mesh (203) is wrapped around the periphery of the sand-free concrete pipe (202). The water filtration mesh lining (204) is wrapped around the periphery of the geotextile filtration (203). The drainage tubes (201) are arranged perpendicularly to the sand-free concrete pipe (202), and communicate with the inside of the sand-free concrete pipe (202). The invention also provides a construction method of the water collecting and draining system.

Description

technical field [0001] The invention belongs to the technical field of drainage in water conservancy and hydropower projects, and in particular relates to a water collection and drainage system and a construction method thereof. Background technique [0002] After the embankment of the urban protection area is built, the area where the anti-seepage wall is set at the foundation of the embankment blocks the channel for the original groundwater in the protection area to flow into the river outside the defense area, so the groundwater level in the protection area will be raised, causing submergence. At present, in order to reduce the permanent land occupation of the project, sand-free concrete pipes are generally buried behind the embankment to reduce the groundwater level and surface water in the submerged area, and the groundwater and surface water are led to the drainage stations in various protection areas through sand-free concrete pipes . However, the currently commonly ...

AI Technical Summary

Problems solved by technology

However, this structure often cannot achieve a good drainage effect during the flood season when groundwater is abundant, and the single drainage pipe structure also has limitations on the surface drainage effect, which cannot meet the drainage requirements of surface water

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