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Well sealing method of dewatering well at bottom of foundation pit
The invention discloses a well sealing method of a dewatering well at a bottom of a foundation pit. The method comprises the following steps: a pumping test is performed for the dewatering well required to be sealed; the depth of the well is measured; a dewatering well pipe (5) is coated with a steel pipe (8) having a water stop wing (7); a waterproof plate (4) at the bottom of the foundation pit is fully welded on the steel pipe; water is pumped with high capacity or the water is pumped by putting in a water filter tank (11); a filler is arranged and compacted; a steel plate is fully welded on the water stop wing of the steel pipe; a stressed rib at the inner edge of a baseplate is connected; and concrete is poured for sealing. The well sealing method of the dewatering well at the bottom of the foundation pit, provided by the invention, overcomes the defect of incomplete well sealing technology in the foundation pit construction, proposes a well sealing scheme for specific conditions of various dewatering wells in the foundation pit engineering, is clear in operation steps, is convenient and economical, and is excellent in promotion and application values.
Well sealing method of dewatering well at bottom of foundation pit
The invention discloses a well sealing method of a dewatering well at a bottom of a foundation pit. The method comprises the following steps: a pumping test is performed for the dewatering well required to be sealed; the depth of the well is measured; a dewatering well pipe (5) is coated with a steel pipe (8) having a water stop wing (7); a waterproof plate (4) at the bottom of the foundation pit is fully welded on the steel pipe; water is pumped with high capacity or the water is pumped by putting in a water filter tank (11); a filler is arranged and compacted; a steel plate is fully welded on the water stop wing of the steel pipe; a stressed rib at the inner edge of a baseplate is connected; and concrete is poured for sealing. The well sealing method of the dewatering well at the bottom of the foundation pit, provided by the invention, overcomes the defect of incomplete well sealing technology in the foundation pit construction, proposes a well sealing scheme for specific conditions of various dewatering wells in the foundation pit engineering, is clear in operation steps, is convenient and economical, and is excellent in promotion and application values.
Well sealing method of dewatering well at bottom of foundation pit
XU CHANGJIE (author) / YANG ZHONGXUAN (author) / YANG YUANYE (author)
2015-09-23
Patent
Electronic Resource
English
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