A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shield tunnel side penetrating pile foundation deformation control method under viaduct operation condition
The invention relates to the technical field of shield tunnels, in particular to a deformation control method for a shield tunnel side-penetrating pile foundation under the viaduct operation condition, which comprises the steps that a shield tunnel laterally penetrates through a viaduct, the viaduct comprises an existing pile foundation and an existing bearing platform, and the top of the existing pile foundation is connected with the existing bearing platform; mJS construction method piles are adopted, the two sides and the top of the shield tunnel are reinforced, and a gate type reinforcing area is formed; newly-built pile foundations are additionally arranged beside the existing pile foundations of the viaduct, and the vertical bearing capacity of the pile foundations is enhanced; the foundation pit is excavated to the bottom of the existing bearing platform, the newly-built bearing platform is arranged in the foundation pit, and the newly-built pile foundation and the existing pile foundation are connected into a whole through the newly-built bearing platform; and a temporary supporting system is built above the newly-built pile foundation and the newly-built bearing platform. By supplementing the new pile foundation, the new bearing platform and the temporary supporting system on the viaduct, lateral deformation of the pile foundation is effectively controlled when a shield passes through the viaduct, and the deformation resistance of the viaduct is improved.
本发明涉及盾构法隧道技术领域，尤其涉及一种高架桥运营条件下盾构隧道侧穿桩基础变形控制方法，包括：盾构隧道侧穿于高架桥，高架桥包括既有桩基础和既有承台，所述既有桩基础的顶部与所述既有承台连接；采用MJS工法桩，对盾构隧道两侧及顶部加固，形成门式加固区；在高架桥既有桩基础旁增补新建桩基础，增强桩基的竖向承载力；开挖基坑至既有承台底，新建承台设置在基坑内，所述新建承台将新建桩基础和既有桩基础连成整体；在新建桩基础和新建承台上方建立临时支撑体系。本发明通过高架桥增补新桩基、新建承台及临时支撑体系，有效控制盾构通过时桩基侧向变形，提高了高架桥本身抵抗变形的能力。
Shield tunnel side penetrating pile foundation deformation control method under viaduct operation condition
The invention relates to the technical field of shield tunnels, in particular to a deformation control method for a shield tunnel side-penetrating pile foundation under the viaduct operation condition, which comprises the steps that a shield tunnel laterally penetrates through a viaduct, the viaduct comprises an existing pile foundation and an existing bearing platform, and the top of the existing pile foundation is connected with the existing bearing platform; mJS construction method piles are adopted, the two sides and the top of the shield tunnel are reinforced, and a gate type reinforcing area is formed; newly-built pile foundations are additionally arranged beside the existing pile foundations of the viaduct, and the vertical bearing capacity of the pile foundations is enhanced; the foundation pit is excavated to the bottom of the existing bearing platform, the newly-built bearing platform is arranged in the foundation pit, and the newly-built pile foundation and the existing pile foundation are connected into a whole through the newly-built bearing platform; and a temporary supporting system is built above the newly-built pile foundation and the newly-built bearing platform. By supplementing the new pile foundation, the new bearing platform and the temporary supporting system on the viaduct, lateral deformation of the pile foundation is effectively controlled when a shield passes through the viaduct, and the deformation resistance of the viaduct is improved.
本发明涉及盾构法隧道技术领域，尤其涉及一种高架桥运营条件下盾构隧道侧穿桩基础变形控制方法，包括：盾构隧道侧穿于高架桥，高架桥包括既有桩基础和既有承台，所述既有桩基础的顶部与所述既有承台连接；采用MJS工法桩，对盾构隧道两侧及顶部加固，形成门式加固区；在高架桥既有桩基础旁增补新建桩基础，增强桩基的竖向承载力；开挖基坑至既有承台底，新建承台设置在基坑内，所述新建承台将新建桩基础和既有桩基础连成整体；在新建桩基础和新建承台上方建立临时支撑体系。本发明通过高架桥增补新桩基、新建承台及临时支撑体系，有效控制盾构通过时桩基侧向变形，提高了高架桥本身抵抗变形的能力。
Shield tunnel side penetrating pile foundation deformation control method under viaduct operation condition
一种高架桥运营条件下盾构隧道侧穿桩基础变形控制方法
SUN CHAO (author) / LYU JIANYING (author) / JIANG BAOCHEN (author) / HU BIN (author) / WANG HONGGANG (author) / XING YONGHUI (author) / YU ZUFENG (author) / DA WUQIANG (author) / ZHANG GUANGWEI (author) / FANG LEI (author)
2023-11-24
Patent
Electronic Resource
Chinese
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