Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Two-stage plugging construction method for dewatering well with large water yield
The invention discloses a two-stage plugging construction method for a large-water-yield dewatering well and belongs to the field of construction methods. The construction method provided by the invention can be applied to the dewatering well with large water yield, and the plugging effect is remarkably improved. After first-stage plugging is completed, floating pressure possibly existing in a bottom plate is released by reserving a control valve, if the floating risk of the basement in the later stage is large, a ball valve can be opened to reduce water pressure borne by the bottom plate, and the situation that a relief well is additionally drilled in the bottom plate in the later stage is avoided. If a basement does not have the floating risk, concrete is filled, and well shut-in is completed.
本发明公开了一种大出水量降水井两阶段封堵施工方法，属于施工方法领域。本发明提供的施工方法可应用于出水量较大的降水井，封堵效果显著提高。当第一阶段封堵完成后，通过保留控制阀来释放底板可能存在的上浮压力，如果后期地下室上浮风险较大，可开启球阀减小底板承受的水压力，避免后期在底板增打减压井。如果地下室不存在上浮风险，则填补混凝土，完成封井。
Two-stage plugging construction method for dewatering well with large water yield
The invention discloses a two-stage plugging construction method for a large-water-yield dewatering well and belongs to the field of construction methods. The construction method provided by the invention can be applied to the dewatering well with large water yield, and the plugging effect is remarkably improved. After first-stage plugging is completed, floating pressure possibly existing in a bottom plate is released by reserving a control valve, if the floating risk of the basement in the later stage is large, a ball valve can be opened to reduce water pressure borne by the bottom plate, and the situation that a relief well is additionally drilled in the bottom plate in the later stage is avoided. If a basement does not have the floating risk, concrete is filled, and well shut-in is completed.
本发明公开了一种大出水量降水井两阶段封堵施工方法，属于施工方法领域。本发明提供的施工方法可应用于出水量较大的降水井，封堵效果显著提高。当第一阶段封堵完成后，通过保留控制阀来释放底板可能存在的上浮压力，如果后期地下室上浮风险较大，可开启球阀减小底板承受的水压力，避免后期在底板增打减压井。如果地下室不存在上浮风险，则填补混凝土，完成封井。
Two-stage plugging construction method for dewatering well with large water yield
大出水量降水井两阶段封堵施工方法
HUANG JIEQING (Autor:in) / LIU YUTAO (Autor:in) / LU KAIKAI (Autor:in) / CHEN WANLI (Autor:in) / XIAO TING (Autor:in) / HUANG ZHENGZHE (Autor:in) / SHENG ZHIHONG (Autor:in)
11.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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