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A platform for research: civil engineering, architecture and urbanism
Construction method of sandy gravel water-rich stratum foundation pit
The invention discloses a sandy gravel water-rich stratum foundation pit construction method, which belongs to the technical field of foundation construction, and comprises the following steps: drilling a water collecting well; slope excavation is conducted, and water pumping facilities are placed in the water collecting wells; arranging drainage beams to form a drainage channel; a waterproof layer is laid on the drainage beam, and a concrete cushion layer and a bearing platform are sequentially constructed on the waterproof layer; and the foundation pit is backfilled after water pumping facilities are dismantled. The drainage beams are used for supporting the concrete cushion layers and the bearing platform, seepage of the foundation pit and side slopes around the foundation pit can be collected into the water collecting well in the construction process of the upper concrete cushion layer and the bearing platform, the seepage is drained out of the foundation pit in time through the water pumping facility, smooth construction of the bearing platform under the condition that the foundation pit has water is guaranteed, and the construction efficiency is improved. And finally, gaps around the bearing platform and between the drainage beams are filled through grouting, so that the bearing platform and the drainage beams are vertically integrated. The construction time can be greatly saved, the foundation pit construction progress is accelerated, and foundation pit excavation is smoothly completed.
本发明公开了一种砂卵石富水地层基坑施工方法，属于基础施工技术领域，包括以下步骤：钻集水井；放坡开挖并在集水井内放抽水设施；布设排水梁，形成排水通道；在排水梁上铺设防水层，并在上面依次施工混凝土垫层及承台；拆除抽水设施后回填基坑。本发明利用排水梁对混凝土垫层及承台起到支撑作用，能够在上层混凝土垫层及承台的施工过程中，将基坑及其四周边坡的渗流汇集于集水井内，利用抽水设施即时排出基坑，确保承台在基坑有水情况下的顺利施工，最后注浆填充承台四周及排水梁间的间隙，使其上下形成一体。采用本发明能够极大节约施工时间，加快基坑施工进度，顺利完成基坑开挖。
Construction method of sandy gravel water-rich stratum foundation pit
The invention discloses a sandy gravel water-rich stratum foundation pit construction method, which belongs to the technical field of foundation construction, and comprises the following steps: drilling a water collecting well; slope excavation is conducted, and water pumping facilities are placed in the water collecting wells; arranging drainage beams to form a drainage channel; a waterproof layer is laid on the drainage beam, and a concrete cushion layer and a bearing platform are sequentially constructed on the waterproof layer; and the foundation pit is backfilled after water pumping facilities are dismantled. The drainage beams are used for supporting the concrete cushion layers and the bearing platform, seepage of the foundation pit and side slopes around the foundation pit can be collected into the water collecting well in the construction process of the upper concrete cushion layer and the bearing platform, the seepage is drained out of the foundation pit in time through the water pumping facility, smooth construction of the bearing platform under the condition that the foundation pit has water is guaranteed, and the construction efficiency is improved. And finally, gaps around the bearing platform and between the drainage beams are filled through grouting, so that the bearing platform and the drainage beams are vertically integrated. The construction time can be greatly saved, the foundation pit construction progress is accelerated, and foundation pit excavation is smoothly completed.
本发明公开了一种砂卵石富水地层基坑施工方法，属于基础施工技术领域，包括以下步骤：钻集水井；放坡开挖并在集水井内放抽水设施；布设排水梁，形成排水通道；在排水梁上铺设防水层，并在上面依次施工混凝土垫层及承台；拆除抽水设施后回填基坑。本发明利用排水梁对混凝土垫层及承台起到支撑作用，能够在上层混凝土垫层及承台的施工过程中，将基坑及其四周边坡的渗流汇集于集水井内，利用抽水设施即时排出基坑，确保承台在基坑有水情况下的顺利施工，最后注浆填充承台四周及排水梁间的间隙，使其上下形成一体。采用本发明能够极大节约施工时间，加快基坑施工进度，顺利完成基坑开挖。
Construction method of sandy gravel water-rich stratum foundation pit
砂卵石富水地层基坑施工方法
LIU CHENGHONG (author) / WANG SHUANGLING (author) / GUO YU (author) / TIAN JIANFEI (author) / LI XUELEI (author) / LIU HUABIN (author) / REN KAIFENG (author) / GUO ZAIXUE (author)
2023-12-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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