A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Receiving construction method of rectangular jacking pipe in case of hard rock
The invention provides a hard rock receiving construction method for rectangular pipe jacking receiving, which comprises the following steps: firstly, determining an excavation and breaking area range, reversely excavating a soil body in the excavation and breaking area range through an excavator in a receiving well, and finally, pushing a pipe jacking machine to the receiving well to complete receiving. The excavation breaking area range comprises a hard rock receiving construction section starting from the pipeline route section to a tunnel portal in the hard rock receiving area and a hard rock receiving upper soil body located on the hard rock receiving construction section, and a tunnel face reserved soil body and a middle reserved core soil body are reserved in the hard rock receiving construction section; the tunnel face reserved soil body extends from the beginning of the hard rock receiving construction section to the direction of a tunnel portal along the pipeline line section, and the middle reserved core soil body extends from the extending tail end of the tunnel face reserved soil body to the direction of the tunnel portal along the pipeline line section; in addition, when the excavator conducts reverse excavation, the hard rock receiving upper soil body is broken firstly, and then the hard rock receiving construction section is broken. Safe and rapid construction can be achieved, the construction cost is reduced, and construction settlement is strictly controlled.
本发明提供一种矩形顶管接收遇硬岩接收施工方法，首先确定开挖破除区域范围，通过接收井内的挖掘机逆向开挖破除区域范围的土体，最后将顶管机推至接收井完成接收。开挖破除区域范围包括硬岩接收区域内沿管道线路段上的起始至洞门的硬岩接收施工段以及位于硬岩接收施工段的硬岩接收上部土体，并在硬岩接收施工段内预留掌子面预留土体和中部预留核心土体，所述掌子面预留土体自硬岩接收施工段的起始沿管道线路段向洞门方向延伸，中部预留核心土体自掌子面预留土体延伸末端起沿管道线路段向洞门方向延伸；并且，挖掘机逆向开挖时首先破除硬岩接收上部土体，再破除硬岩接收施工段。本发明能够安全快速施工，降低工程造价，并严格控制施工沉降。
Receiving construction method of rectangular jacking pipe in case of hard rock
The invention provides a hard rock receiving construction method for rectangular pipe jacking receiving, which comprises the following steps: firstly, determining an excavation and breaking area range, reversely excavating a soil body in the excavation and breaking area range through an excavator in a receiving well, and finally, pushing a pipe jacking machine to the receiving well to complete receiving. The excavation breaking area range comprises a hard rock receiving construction section starting from the pipeline route section to a tunnel portal in the hard rock receiving area and a hard rock receiving upper soil body located on the hard rock receiving construction section, and a tunnel face reserved soil body and a middle reserved core soil body are reserved in the hard rock receiving construction section; the tunnel face reserved soil body extends from the beginning of the hard rock receiving construction section to the direction of a tunnel portal along the pipeline line section, and the middle reserved core soil body extends from the extending tail end of the tunnel face reserved soil body to the direction of the tunnel portal along the pipeline line section; in addition, when the excavator conducts reverse excavation, the hard rock receiving upper soil body is broken firstly, and then the hard rock receiving construction section is broken. Safe and rapid construction can be achieved, the construction cost is reduced, and construction settlement is strictly controlled.
本发明提供一种矩形顶管接收遇硬岩接收施工方法，首先确定开挖破除区域范围，通过接收井内的挖掘机逆向开挖破除区域范围的土体，最后将顶管机推至接收井完成接收。开挖破除区域范围包括硬岩接收区域内沿管道线路段上的起始至洞门的硬岩接收施工段以及位于硬岩接收施工段的硬岩接收上部土体，并在硬岩接收施工段内预留掌子面预留土体和中部预留核心土体，所述掌子面预留土体自硬岩接收施工段的起始沿管道线路段向洞门方向延伸，中部预留核心土体自掌子面预留土体延伸末端起沿管道线路段向洞门方向延伸；并且，挖掘机逆向开挖时首先破除硬岩接收上部土体，再破除硬岩接收施工段。本发明能够安全快速施工，降低工程造价，并严格控制施工沉降。
Receiving construction method of rectangular jacking pipe in case of hard rock
矩形顶管接收遇硬岩接收施工方法
DING FEI (author) / SHEN GUOKUI (author) / WU JIE (author) / CHEN LEI (author) / DENG MEILONG (author) / ZHU YAN (author)
2022-07-12
Patent
Electronic Resource
Chinese
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