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A platform for research: civil engineering, architecture and urbanism
Plugging method for dewatering well in foundation pit
The invention discloses a plugging method for a dewatering well in a foundation pit. The plugging method comprises the following steps that S1, the position of the dewatering well is selected, and a steel pipe is inserted to serve as the well wall of the dewatering well; S2, a water stop ring is welded to the neck of the steel pipe, and a connecting ring is welded to the top of the steel pipe; S3, a waterproof coiled material is arranged on the outer wall of the steel pipe and extends from the well bottom to the position below the water stop ring; S4, a water stop copper bar clamp is arranged below the water stop ring and used for clamping the waterproof coiled material; S5, bottom plates are laid on the two sides of the foundation pit and the two sides of the dewatering well, reserved plugging positions are arranged on the bottom plates, and steel pipes are arranged in the reserved plugging positions; S6, water pumps are placed in the steel pipes, water is cooled to the position 50cm below the lowest point of the foundation pit, and after a basement structure is completed, dewatering is stopped; S7, the water pumps are withdrawn, the dewatering well is filled with gravel, and a well lid with holes is additionally sealed on the connecting ring; and S8, grouting is conducted along the holes in the well lid. Underground confined water is plugged while pressure relief is conducted, the plugging quality is ensured, multiple waterproof measures are taken, and leakage of the structural bottom plates is avoided.
本发明公开一种在基坑内降水井的封堵方法，包括以下步骤：S1：选定降水井位置，并插入钢管作为降水井井壁；S2：在钢管颈部焊接止水环，在钢管顶部焊接连接环；S3：在钢管外壁设置防水卷材，防水卷材由井底到止水环下方为止；S4：在止水环下方设置止水铜条卡箍，止水铜条卡箍用于卡紧防水卷材；S5：在基坑以及降水井两侧铺设底板，底板上设置有预留封堵位，预留封堵位中设置钢管；S6：在钢管中放入水泵，将水将至基坑最低点以下50cm，待地下室结构完成后，停止降水；S7：撤出水泵，并在降水井中充填砂砾，在连接环上加封带有孔的井盖；S8：沿井盖上的孔注浆。将地下承压水边泄压边封堵，确保封堵质量，且设置有多道防水措施，避免了结构底板渗漏。
Plugging method for dewatering well in foundation pit
The invention discloses a plugging method for a dewatering well in a foundation pit. The plugging method comprises the following steps that S1, the position of the dewatering well is selected, and a steel pipe is inserted to serve as the well wall of the dewatering well; S2, a water stop ring is welded to the neck of the steel pipe, and a connecting ring is welded to the top of the steel pipe; S3, a waterproof coiled material is arranged on the outer wall of the steel pipe and extends from the well bottom to the position below the water stop ring; S4, a water stop copper bar clamp is arranged below the water stop ring and used for clamping the waterproof coiled material; S5, bottom plates are laid on the two sides of the foundation pit and the two sides of the dewatering well, reserved plugging positions are arranged on the bottom plates, and steel pipes are arranged in the reserved plugging positions; S6, water pumps are placed in the steel pipes, water is cooled to the position 50cm below the lowest point of the foundation pit, and after a basement structure is completed, dewatering is stopped; S7, the water pumps are withdrawn, the dewatering well is filled with gravel, and a well lid with holes is additionally sealed on the connecting ring; and S8, grouting is conducted along the holes in the well lid. Underground confined water is plugged while pressure relief is conducted, the plugging quality is ensured, multiple waterproof measures are taken, and leakage of the structural bottom plates is avoided.
本发明公开一种在基坑内降水井的封堵方法，包括以下步骤：S1：选定降水井位置，并插入钢管作为降水井井壁；S2：在钢管颈部焊接止水环，在钢管顶部焊接连接环；S3：在钢管外壁设置防水卷材，防水卷材由井底到止水环下方为止；S4：在止水环下方设置止水铜条卡箍，止水铜条卡箍用于卡紧防水卷材；S5：在基坑以及降水井两侧铺设底板，底板上设置有预留封堵位，预留封堵位中设置钢管；S6：在钢管中放入水泵，将水将至基坑最低点以下50cm，待地下室结构完成后，停止降水；S7：撤出水泵，并在降水井中充填砂砾，在连接环上加封带有孔的井盖；S8：沿井盖上的孔注浆。将地下承压水边泄压边封堵，确保封堵质量，且设置有多道防水措施，避免了结构底板渗漏。
Plugging method for dewatering well in foundation pit
一种在基坑内降水井的封堵方法
HAN SHAOBO (author) / JIANG YINGWEI (author) / HE GANG (author) / HE CHANGLIN (author)
2021-04-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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