Foundation pit local dewatering construction method

A construction method and foundation pit technology, which is applied in basic structure engineering, excavation, construction, etc., can solve problems such as well wall mud collapse, blockage of drainage pumps, and small construction volume, so as to prevent blockage, prevent overflow, and prevent precipitation The effect of well collapse
CN110820778AInactive Publication Date: 2020-02-21陕西神州实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
陕西神州实业有限公司
Publication Date
2020-02-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a foundation pit local dewatering construction method, relates to the technical field of foundation pit dewatering, and aims at solving the problems that an existing dewatering well easily receives impact of underground water, and easily generates the hole collapse condition, or even well wall slurry collapsing can occur, and a water discharging pump is blocked. The methodcomprises the following steps of Step 1, determining the dimension, quantity and positions of dewatering wells; Step 2, manufacturing dewatering pipes; Step 3, digging water collecting pits; Step 4,fixing the dewatering pipes; Step 5, filling and installing filtering layers; and Step 6, constructing waterproof layers. The foundation pit local dewatering construction method has the beneficial effect that a hole collapsing phenomenon of the dewatering wells can be reduced.
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Description

technical field

[0001] The invention relates to the technical field of foundation dewatering, in particular to a construction method for local dewatering of foundation pits. Background technique

[0002] Foundation pit dewatering means that during the construction of high-rise buildings, when the excavation of the foundation pit is deep and the groundwater level is high, the groundwater will continuously infiltrate into the pit because the groundwater level is higher than the bottom surface of the excavation of the foundation pit. Precipitation work is done to prevent problems such as slope instability, foundation quicksand, pit bottom uplift, pit bottom piping, and foundation bearing capacity decline.

[0003] The methods of foundation pit dewatering mainly include: open ditch plus water collection well dewatering, light well point dewatering, jet well point dewatering, electroosmotic well point dewatering, deep well well point dewatering, etc. When the bottom of the found...

Claims

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