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A platform for research: civil engineering, architecture and urbanism
Device and method for monitoring influence of deep foundation pit excavation on subway vertical deformation
The invention provides a device and method for monitoring the influence of deep foundation pit excavation on subway vertical deformation, and belongs to the technical field of geotechnical engineeringand underground space engineering field monitoring. The device comprises monitoring rod pieces, an observation prism, an anti-tilting concentric support, a protective sleeve, filling sand and a concrete base. The monitoring rod pieces are connected through a thread end head and a hollow end head of a connecting rod piece, the tops of the connected monitoring rod pieces are connected with the observation prism, the bottoms of the connected monitoring rod pieces are connected with the concrete base, the protective sleeve is arranged outside the connected monitoring rod pieces, and the space between the monitoring rod pieces and the protective sleeve is filled with the filling sand. According to the device and method for monitoring the influence of deep foundation pit excavation on the subway vertical deformation, the vertical displacement of a deep soil body in a pit and the vertical displacement of a subway tunnel in the deep foundation pit excavation process are combined, the safety of deep foundation pit excavation to subway operation is evaluated in time through dynamic monitoring and early warning is carried out, so that the soil layer deformation rules in the subway tunnel, inthe foundation pit and around the foundation pit in the deep foundation pit excavation process are obtained, and a decision basis is provided for excavation of a deep foundation pit close to a subway.
一种深基坑开挖对地铁竖向变形影响监测装置及方法，属于岩土工程及地下空间工程现场监测技术领域，包括监测杆件、观测棱镜、防倾同心支架、防护套筒、填充砂、混凝土基座，所述监测杆件之间经相连杆件的螺纹端头与空心头端相连，连接后的监测杆件顶部与观测棱镜相连，其底部与混凝土基座相连，连接后的监测杆件外部设有防护套筒，所述监测杆件与防护套筒之间填充有填充砂。本发明通过结合深基坑开挖过程中坑内深层土体的竖向位移和地铁隧道的竖向位移，通过动态监测及时评估深基坑开挖对地铁运营的安全性并预警，从而得出深基坑开挖过程中，地铁隧道、基坑内及基坑周边的土层变形规律，为近地铁深基坑的开挖提供决策依据。
Device and method for monitoring influence of deep foundation pit excavation on subway vertical deformation
The invention provides a device and method for monitoring the influence of deep foundation pit excavation on subway vertical deformation, and belongs to the technical field of geotechnical engineeringand underground space engineering field monitoring. The device comprises monitoring rod pieces, an observation prism, an anti-tilting concentric support, a protective sleeve, filling sand and a concrete base. The monitoring rod pieces are connected through a thread end head and a hollow end head of a connecting rod piece, the tops of the connected monitoring rod pieces are connected with the observation prism, the bottoms of the connected monitoring rod pieces are connected with the concrete base, the protective sleeve is arranged outside the connected monitoring rod pieces, and the space between the monitoring rod pieces and the protective sleeve is filled with the filling sand. According to the device and method for monitoring the influence of deep foundation pit excavation on the subway vertical deformation, the vertical displacement of a deep soil body in a pit and the vertical displacement of a subway tunnel in the deep foundation pit excavation process are combined, the safety of deep foundation pit excavation to subway operation is evaluated in time through dynamic monitoring and early warning is carried out, so that the soil layer deformation rules in the subway tunnel, inthe foundation pit and around the foundation pit in the deep foundation pit excavation process are obtained, and a decision basis is provided for excavation of a deep foundation pit close to a subway.
一种深基坑开挖对地铁竖向变形影响监测装置及方法，属于岩土工程及地下空间工程现场监测技术领域，包括监测杆件、观测棱镜、防倾同心支架、防护套筒、填充砂、混凝土基座，所述监测杆件之间经相连杆件的螺纹端头与空心头端相连，连接后的监测杆件顶部与观测棱镜相连，其底部与混凝土基座相连，连接后的监测杆件外部设有防护套筒，所述监测杆件与防护套筒之间填充有填充砂。本发明通过结合深基坑开挖过程中坑内深层土体的竖向位移和地铁隧道的竖向位移，通过动态监测及时评估深基坑开挖对地铁运营的安全性并预警，从而得出深基坑开挖过程中，地铁隧道、基坑内及基坑周边的土层变形规律，为近地铁深基坑的开挖提供决策依据。
Device and method for monitoring influence of deep foundation pit excavation on subway vertical deformation
一种深基坑开挖对地铁竖向变形影响监测装置及方法
SU YANJUN (author) / ZHANG GUANGCHAO (author) / XIN QUANMING (author) / SUN ZHENHUA (author) / SHE XIAOKANG (author) / CAO YANG (author) / XIE GUANGCHENG (author) / MA RONG (author) / LIANG HAI (author) / CHEN LIMIN (author)
2021-02-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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