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A platform for research: civil engineering, architecture and urbanism
Deep and thick covering layer circulating water pumping desilting steel sheet pile cofferdam and construction method
The invention discloses a deep covering layer circulating water pumping desilting steel sheet pile cofferdam and a construction method. The construction method comprises the following steps that firstly, steel sheet piles of the needed specification are customized; then, positioning piles and guide beams are mounted at preset positions, and limiting frames are arranged to ensure that the steel sheet piles are accurately inserted; then, a first-layer supporting structure is constructed, steel sheet piles are sequentially and vertically driven into a rock stratum, and the cofferdam is formed; and then, after water is pumped into the cofferdam to a certain height, a second layer of support is established, and water level balance is recovered. And then, excavating earthwork at the bottom of the cofferdam, pouring underwater concrete by adopting a vertical pipe method, pumping water again after the concrete is hardened, and additionally arranging a third layer of support. And finally, the stability and the stress condition of the cofferdam are continuously monitored, and reinforcement measures are taken when necessary to ensure the engineering safety. The steel sheet pile cofferdam technology of cofferdam dewatering and supporting composite supporting is adopted, the firmness of the cofferdam structure in the whole construction process is guaranteed, the construction safety is improved, and the risk is reduced.
本发明公开了一种深厚覆盖层循环抽水清淤钢板桩围堰及施工方法，该施工方法包括以下步骤：首先，定制所需规格的钢板桩；接着，在预定位置安装定位桩及导向梁，并设置限位框以确保钢板桩准确插入。随后，构建第一层支撑结构，并依次垂直打入钢板桩直至岩层，形成围堰。之后，围堰内抽水至一定高度后，建立第二层支撑并恢复水位平衡。接着，开挖围堰底部土方并采用竖管法浇筑水下混凝土，待混凝土硬化后再次抽水并增设第三层支撑。最后，持续监测围堰的稳定性和受力情况，必要时进行加固措施以确保工程安全。本发明采用了围堰降水与支撑复合支护的钢板桩围堰技术，保证了施工全过程中围堰结构的牢固性，提高了施工安全性，降低了风险。
Deep and thick covering layer circulating water pumping desilting steel sheet pile cofferdam and construction method
The invention discloses a deep covering layer circulating water pumping desilting steel sheet pile cofferdam and a construction method. The construction method comprises the following steps that firstly, steel sheet piles of the needed specification are customized; then, positioning piles and guide beams are mounted at preset positions, and limiting frames are arranged to ensure that the steel sheet piles are accurately inserted; then, a first-layer supporting structure is constructed, steel sheet piles are sequentially and vertically driven into a rock stratum, and the cofferdam is formed; and then, after water is pumped into the cofferdam to a certain height, a second layer of support is established, and water level balance is recovered. And then, excavating earthwork at the bottom of the cofferdam, pouring underwater concrete by adopting a vertical pipe method, pumping water again after the concrete is hardened, and additionally arranging a third layer of support. And finally, the stability and the stress condition of the cofferdam are continuously monitored, and reinforcement measures are taken when necessary to ensure the engineering safety. The steel sheet pile cofferdam technology of cofferdam dewatering and supporting composite supporting is adopted, the firmness of the cofferdam structure in the whole construction process is guaranteed, the construction safety is improved, and the risk is reduced.
本发明公开了一种深厚覆盖层循环抽水清淤钢板桩围堰及施工方法，该施工方法包括以下步骤：首先，定制所需规格的钢板桩；接着，在预定位置安装定位桩及导向梁，并设置限位框以确保钢板桩准确插入。随后，构建第一层支撑结构，并依次垂直打入钢板桩直至岩层，形成围堰。之后，围堰内抽水至一定高度后，建立第二层支撑并恢复水位平衡。接着，开挖围堰底部土方并采用竖管法浇筑水下混凝土，待混凝土硬化后再次抽水并增设第三层支撑。最后，持续监测围堰的稳定性和受力情况，必要时进行加固措施以确保工程安全。本发明采用了围堰降水与支撑复合支护的钢板桩围堰技术，保证了施工全过程中围堰结构的牢固性，提高了施工安全性，降低了风险。
Deep and thick covering layer circulating water pumping desilting steel sheet pile cofferdam and construction method
深厚覆盖层循环抽水清淤钢板桩围堰及施工方法
WANG XINQUAN (author) / WANG CHENGQUAN (author) / LI DONGDONG (author) / SONG LIANGLIANG (author)
2024-11-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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