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A platform for research: civil engineering, architecture and urbanism
Dewatering and drainage construction method for deep-water deep foundation pit of fracture-developed rock stratum
The invention provides a crack development rock stratum deepwater deep foundation pit dewatering and drainage construction method, which is characterized in that the crack development rock stratum deepwater deep foundation pit dewatering and drainage construction method comprises the following steps: at a pile foundation construction stage, reserving at least one pile foundation hole, the well serves as a water collecting well and a dewatering well during cofferdam water pumping and bearing platform excavation; after the foundation pit is excavated to a certain distance from the bottom of the bearing platform, a first drainage ditch and a second drainage ditch are excavated, the first drainage ditch and the second drainage ditch are obliquely arranged, the first drainage ditch can guide water to the reserved pile foundation hole, and the second drainage ditch can guide water to the first drainage ditch; and after excavation is completed, concrete sealing layers are poured above the first drainage ditch and the second drainage ditch, and after the water sealing effect is achieved, reserved pile foundations are poured to seal the water collecting pit. The construction method for dewatering and drainage of the deep-water deep foundation pit of the fracture-developed rock stratum is convenient to construct, simple and easy to implement and good in water stopping effect.
本发明提供一种裂隙发育岩层深水深基坑降排水施工方法,其技术方案要点是该裂隙发育岩层深水深基坑降排水施工方法包括以下步骤：桩基施工阶段，预留至少一个桩基孔不予下放钢筋笼且不予灌注，作为围堰抽水及承台开挖期间的集水井及降水井；基坑开挖至承台底部一段距离后，开挖第一排水沟和第二排水沟，所述第一排水沟和所述第二排水沟均为倾斜设置，所述第一排水沟能将水导向预留的所述桩基孔，所述第二排水沟能将水导向所述第一排水沟；开挖完成后，在所述第一排水沟和所述第二排水沟的上方浇筑混凝土封层，达到封水效果后，灌注预留的桩基，封闭集水坑。本发明的裂隙发育岩层深水深基坑降排水施工方法，施工方便，简单易行，止水效果好。
Dewatering and drainage construction method for deep-water deep foundation pit of fracture-developed rock stratum
The invention provides a crack development rock stratum deepwater deep foundation pit dewatering and drainage construction method, which is characterized in that the crack development rock stratum deepwater deep foundation pit dewatering and drainage construction method comprises the following steps: at a pile foundation construction stage, reserving at least one pile foundation hole, the well serves as a water collecting well and a dewatering well during cofferdam water pumping and bearing platform excavation; after the foundation pit is excavated to a certain distance from the bottom of the bearing platform, a first drainage ditch and a second drainage ditch are excavated, the first drainage ditch and the second drainage ditch are obliquely arranged, the first drainage ditch can guide water to the reserved pile foundation hole, and the second drainage ditch can guide water to the first drainage ditch; and after excavation is completed, concrete sealing layers are poured above the first drainage ditch and the second drainage ditch, and after the water sealing effect is achieved, reserved pile foundations are poured to seal the water collecting pit. The construction method for dewatering and drainage of the deep-water deep foundation pit of the fracture-developed rock stratum is convenient to construct, simple and easy to implement and good in water stopping effect.
本发明提供一种裂隙发育岩层深水深基坑降排水施工方法,其技术方案要点是该裂隙发育岩层深水深基坑降排水施工方法包括以下步骤：桩基施工阶段，预留至少一个桩基孔不予下放钢筋笼且不予灌注，作为围堰抽水及承台开挖期间的集水井及降水井；基坑开挖至承台底部一段距离后，开挖第一排水沟和第二排水沟，所述第一排水沟和所述第二排水沟均为倾斜设置，所述第一排水沟能将水导向预留的所述桩基孔，所述第二排水沟能将水导向所述第一排水沟；开挖完成后，在所述第一排水沟和所述第二排水沟的上方浇筑混凝土封层，达到封水效果后，灌注预留的桩基，封闭集水坑。本发明的裂隙发育岩层深水深基坑降排水施工方法，施工方便，简单易行，止水效果好。
Dewatering and drainage construction method for deep-water deep foundation pit of fracture-developed rock stratum
一种裂隙发育岩层深水深基坑降排水施工方法
WU JIAN (author) / CHEN CHUANLEI (author) / ZHANG JINGXIAN (author) / LI YOUQING (author) / LI CHUANWEI (author) / CHANG SHUFANG (author) / RAN FULYU (author) / LIU MINGHUI (author) / LIAO YANQIANG (author)
2022-10-21
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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