Hydrophobic water guiding device for foundation pit construction

Abstract

The invention discloses a hydrophobic water guiding device for foundation pit construction, and relates to the technical field of foundation pit construction. According to the technical scheme, the hydrophobic water guiding device is characterized by comprising drainage ditches, water collecting wells, a water pumping pump and water pumping pipes, the drainage ditches are arranged at the bottom ofa foundation pit, protective walls are arranged on the well wall of each water collecting well, a water filtering layer is arranged at the bottom of each water collecting well, the water pumping pipeare connected with the water pumping pump and stretch into the water collecting wells, and each filtering device comprises a box body and a filtering part; and the top of each box body is provided with a connecting hole for extending into the corresponding water pumping pipe, the side walls are provided with a large amount of water entering holes for supplying water to the interior, and the filtering parts are arranged inside the box bodies and sleeves the outer sides of the water pumping pipes. The water flows into the water collecting wells along the drainage ditches and flows into the boxbodies, sediment is removed through the filtering parts, and the water is extracted from the water pumping pipes. After the sediment is blocked by the filtering parts, the sediment naturally drops tothe bottoms of the box bodies, and does not accumulate on the surface of an outer ring net, so that the hydrophobic water guiding efficiency is ensured.

Description

technical field [0001] The invention relates to the technical field of foundation pit construction, in particular to a drainage and water guide device for foundation pit construction. Background technique [0002] When excavating a foundation pit, if the groundwater level is higher than the excavation bottom, groundwater will continue to seep into the pit, resulting in problems such as slope instability, foundation quicksand, pit bottom heaving, pit bottom piping, and foundation bearing capacity decline. Therefore, in order to ensure that the foundation pit can be constructed normally under dry conditions, it is necessary to carry out dewatering and drainage to discharge groundwater and lower the groundwater level. Common drainage and water guide devices for foundation pits include: open ditch plus collection well drainage, light well point drainage, jet well point drainage, electroosmosis well point drainage, deep well well point drainage, etc. Among them, the drainage met...

AI Technical Summary

Problems solved by technology

However, this technical solution still has the following technical defects: the sediment is deposited on the upper part of the filter layer, which easily leads to poor water permeability of the filter layer, seriously affects the drainage efficiency, and the cleaning of the sediment is inconvenient, time-consuming and laborious

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