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Foundation pit supporting structure with suspension type waterproof curtain matched with frozen soil curtain and construction method of foundation pit supporting structure
The invention discloses a foundation pit supporting structure with a suspension type waterproof curtain matched with a frozen soil curtain and a construction method of the foundation pit supporting structure. The supporting structure comprises a foundation pit, the suspension type waterproof curtain is arranged on the periphery of the foundation pit, the horizontal frozen soil curtain is arranged at the bottom of the foundation pit, and the suspension type waterproof curtain and the horizontal frozen soil curtain are arranged in a staggered lap joint mode; the horizontal frozen soil curtain comprises short-edge freezing holes and long-edge freezing holes, the short-edge freezing holes and the long-edge freezing holes are arranged in a vertically layered and staggered mode to form a net-shaped structure, freezing pipes are arranged in the freezing holes, and the freezing pipes are connected with a freezing system. A shallow underground diaphragm wall structure is adopted in the lateral direction of a foundation pit to serve as a suspension type waterproof curtain, a horizontal frozen soil curtain is adopted at the bottom of the foundation pit to construct a water stop scheme of an artificial water-resisting layer, and a combined closed structure of the suspension type waterproof curtain and the horizontal frozen soil curtain is formed by utilizing the cementation characteristic of frozen soil. The purposes of waterproof and supporting of the foundation pit are achieved safely, reliably and economically, foundation pit engineering excavation is guaranteed, and the method is suitable for the technical field of underground engineering construction.
本发明公开了一种悬挂式止水帷幕配合冻土帷幕的基坑支护结构及其施工方法，该支护结构包括基坑，基坑四周布置有悬挂式止水帷幕，基坑底部设有水平式冻土帷幕，悬挂式止水帷幕与水平式冻土帷幕交错搭接设置；水平式冻土帷幕包括短边冻结孔和长边冻结孔，短边冻结孔和长边冻结孔上下分层交错布置形成网状结构，冻结孔内设有冻结管，冻结管与冷冻系统相连接。通过在基坑侧向采用浅埋地连墙结构作为悬挂式止水帷幕，在基坑底部采用水平式冻土帷幕构筑人为隔水层的止水方案，利用冻土自身的胶结特性，形成悬挂式止水帷幕与水平式冻土帷幕联合封闭结构，安全可靠且经济的实现基坑隔水和支护的目的，保证基坑工程开挖，适用于地下工程施工技术领域。
Foundation pit supporting structure with suspension type waterproof curtain matched with frozen soil curtain and construction method of foundation pit supporting structure
The invention discloses a foundation pit supporting structure with a suspension type waterproof curtain matched with a frozen soil curtain and a construction method of the foundation pit supporting structure. The supporting structure comprises a foundation pit, the suspension type waterproof curtain is arranged on the periphery of the foundation pit, the horizontal frozen soil curtain is arranged at the bottom of the foundation pit, and the suspension type waterproof curtain and the horizontal frozen soil curtain are arranged in a staggered lap joint mode; the horizontal frozen soil curtain comprises short-edge freezing holes and long-edge freezing holes, the short-edge freezing holes and the long-edge freezing holes are arranged in a vertically layered and staggered mode to form a net-shaped structure, freezing pipes are arranged in the freezing holes, and the freezing pipes are connected with a freezing system. A shallow underground diaphragm wall structure is adopted in the lateral direction of a foundation pit to serve as a suspension type waterproof curtain, a horizontal frozen soil curtain is adopted at the bottom of the foundation pit to construct a water stop scheme of an artificial water-resisting layer, and a combined closed structure of the suspension type waterproof curtain and the horizontal frozen soil curtain is formed by utilizing the cementation characteristic of frozen soil. The purposes of waterproof and supporting of the foundation pit are achieved safely, reliably and economically, foundation pit engineering excavation is guaranteed, and the method is suitable for the technical field of underground engineering construction.
本发明公开了一种悬挂式止水帷幕配合冻土帷幕的基坑支护结构及其施工方法，该支护结构包括基坑，基坑四周布置有悬挂式止水帷幕，基坑底部设有水平式冻土帷幕，悬挂式止水帷幕与水平式冻土帷幕交错搭接设置；水平式冻土帷幕包括短边冻结孔和长边冻结孔，短边冻结孔和长边冻结孔上下分层交错布置形成网状结构，冻结孔内设有冻结管，冻结管与冷冻系统相连接。通过在基坑侧向采用浅埋地连墙结构作为悬挂式止水帷幕，在基坑底部采用水平式冻土帷幕构筑人为隔水层的止水方案，利用冻土自身的胶结特性，形成悬挂式止水帷幕与水平式冻土帷幕联合封闭结构，安全可靠且经济的实现基坑隔水和支护的目的，保证基坑工程开挖，适用于地下工程施工技术领域。
Foundation pit supporting structure with suspension type waterproof curtain matched with frozen soil curtain and construction method of foundation pit supporting structure
一种悬挂式止水帷幕配合冻土帷幕的基坑支护结构及其施工方法
ZHANG SONG (author) / YUE ZURUN (author) / WU ZHEN (author) / LU XIANGZHONG (author) / ZHANG QINGWU (author) / GONG ZHENQUAN (author) / SUN TIECHENG (author) / LI XIAOXING (author) / GU XIANGTAO (author) / HAN ZIHAO (author)
2023-09-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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