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Pipe structure for dewatering well to stretch into confined water layer and construction method

A technology of confined water layer and construction method, which is applied in the direction of infrastructure engineering, construction, etc., to achieve good technical and economic benefits, reduce engineering costs, and ensure the effect of precipitation quality

Inactive Publication Date: 2017-10-13
MCC TIANGONG GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention aims to propose a pipe structure and construction method for a dewatering well extending into the confined water layer, so as to solve the adverse consequences of the impact of the traditional dewatering method on the confined water layer

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  • Pipe structure for dewatering well to stretch into confined water layer and construction method
  • Pipe structure for dewatering well to stretch into confined water layer and construction method

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0031] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a construction method for a dewatering well to stretch into a confined water layer. The method comprises the following steps that firstly, well hole drilling is conducted, well hole drilling is conducted at the set position according to design requirements, and a well hole sequentially penetrates an underground shallow water layer and a soil layer till stretching into the confined water layer; secondly, pipe lowering is conducted, the pipe structure for the dewatering well is lowered into the drilled hole, and it is guaranteed that the bottom end of a pipe stretches to the confined water layer; thirdly, filter material filling is conducted, the part between the pipe and the well hole wall is filled with clay, and the part between a filter pipe and the well hole wall is filled with a filter material to the designed height; fourthly, well washing is conducted; and fifthly, immersible pump sinking is conducted. In the construction method for the dewatering well to stretch into the confined water layer, the dewatering well is drilled to the confined water layer according to the construction requirement, then the pipe structure for the dewatering well is lowered into the well hole in a sinking manner, the precipitation water level can be controlled through the method while confined water is not influenced, the precipitation quality is guaranteed, favorable conditions are created for earth excavation, and good technological and economical benefits are achieved.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a pipe structure for a dewatering well extending into a confined water layer and a construction method. Background technique [0002] Technical solutions of the prior art: in recent years, with the rapid development of my country's urban construction, high-rise and super high-rise buildings continue to emerge, various large-scale projects such as subway stations and railway passenger stations are increasing, and the scale of underground space development is also increasing. The depth of the pit also deepened. Whether the deep foundation pit dewatering is in place directly affects the excavation of foundation pit earthwork and the construction of underground structure engineering. As the depth of the foundation pit increases, the depth of the dewatering well also increases. Therefore, in order to ensure the effective depth of the dewatering well, it is necessary to...

Claims

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Application Information

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IPC IPC(8): E02D19/10
CPCE02D19/10
Inventor 周越白文华李平旺张大卫梁占元
Owner MCC TIANGONG GROUP
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