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A platform for research: civil engineering, architecture and urbanism
Lock catch steel pipe pile cofferdam construction and inner support stress adjusting method
The invention discloses a lock catch steel pipe pile cofferdam construction and inner support stress adjusting method which comprises the steps that a steel casing in a cofferdam construction area is lengthened firstly, and a lowering system is installed at the top of the steel casing; the upper inner supporting structure is integrally assembled on site, and the lower inner supporting structure is assembled on site in a scattered mode. Then the upper inner supporting structure is placed to the designed elevation, a supporting piece is arranged on the outer side of the steel casing, and the supporting piece supports the upper inner supporting structure; steel pipe pile inserting and driving construction is conducted along the outer side of the upper inner supporting structure, and a cofferdam structure is defined by the multiple steel pipe piles; water pumping is conducted on the inner side of the cofferdam structure, the lower surrounding purlins are arranged on the inner side of the cofferdam structure in a surrounding mode, the lower diagonal bracing steel pipes are arranged between the inner sides of the opposite sides of the lower surrounding purlins, the reverse jacking devices are arranged between the lower diagonal bracing steel pipes and the lower surrounding purlins, and the reverse jacking devices apply pre-jacking force between the lower diagonal bracing steel pipes and the lower surrounding purlins. The effect of improving the overall stability of the inner supporting system is achieved.
本申请公开了一种锁扣钢管桩围堰施工及内支撑应力调整方法，通过先接长围堰施工区域内的钢护筒，在钢护筒顶部安装下放系统；上部内支撑结构采用现场整体拼装，下部内支撑结构采用现场散拼；然后将上部内支撑结构放至设计标高，在钢护筒外侧设置支撑件，支撑件对上部内支撑结构进行支撑；顺上部内支撑结构外侧进行钢管桩插打施工，若干钢管桩围合形成围堰结构；对围堰结构内侧进行抽水，下部围檩围设在围堰结构内侧，下部对撑钢管设置在下部围檩对边内侧之间，下部对撑钢管与下部围檩之间设置反顶装置，反顶装置在下部对撑钢管与下部围檩之间施加预顶力。本申请具有提高内支撑体系的整体稳定性的效果。
Lock catch steel pipe pile cofferdam construction and inner support stress adjusting method
The invention discloses a lock catch steel pipe pile cofferdam construction and inner support stress adjusting method which comprises the steps that a steel casing in a cofferdam construction area is lengthened firstly, and a lowering system is installed at the top of the steel casing; the upper inner supporting structure is integrally assembled on site, and the lower inner supporting structure is assembled on site in a scattered mode. Then the upper inner supporting structure is placed to the designed elevation, a supporting piece is arranged on the outer side of the steel casing, and the supporting piece supports the upper inner supporting structure; steel pipe pile inserting and driving construction is conducted along the outer side of the upper inner supporting structure, and a cofferdam structure is defined by the multiple steel pipe piles; water pumping is conducted on the inner side of the cofferdam structure, the lower surrounding purlins are arranged on the inner side of the cofferdam structure in a surrounding mode, the lower diagonal bracing steel pipes are arranged between the inner sides of the opposite sides of the lower surrounding purlins, the reverse jacking devices are arranged between the lower diagonal bracing steel pipes and the lower surrounding purlins, and the reverse jacking devices apply pre-jacking force between the lower diagonal bracing steel pipes and the lower surrounding purlins. The effect of improving the overall stability of the inner supporting system is achieved.
本申请公开了一种锁扣钢管桩围堰施工及内支撑应力调整方法，通过先接长围堰施工区域内的钢护筒，在钢护筒顶部安装下放系统；上部内支撑结构采用现场整体拼装，下部内支撑结构采用现场散拼；然后将上部内支撑结构放至设计标高，在钢护筒外侧设置支撑件，支撑件对上部内支撑结构进行支撑；顺上部内支撑结构外侧进行钢管桩插打施工，若干钢管桩围合形成围堰结构；对围堰结构内侧进行抽水，下部围檩围设在围堰结构内侧，下部对撑钢管设置在下部围檩对边内侧之间，下部对撑钢管与下部围檩之间设置反顶装置，反顶装置在下部对撑钢管与下部围檩之间施加预顶力。本申请具有提高内支撑体系的整体稳定性的效果。
Lock catch steel pipe pile cofferdam construction and inner support stress adjusting method
一种锁扣钢管桩围堰施工及内支撑应力调整方法
WANG JIE (author) / RONG MIN (author) / XIAO RUI (author) / LAN QIAOXIN (author) / ZHENG ZHEN (author) / CHENG CHAOLONG (author) / ZHOU SHENGMIN (author) / YAN CHUANCHUAN (author)
2024-01-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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