Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Open excavation and freezing underground excavation combined construction method for entrance and exit of underground communicating channel close to existing structure underneath penetrating pipe gallery
The invention discloses an open excavation and freezing underground excavation combined construction method for an underground communicating channel entrance and exit close to an existing structure underneath-penetrating pipe gallery, and the method specifically comprises the steps of open excavation section construction connected with an existing subway entrance and exit and underground excavation section construction of the underneath-penetrating pipe gallery, and specifically comprises the steps that firstly, open excavation section foundation pit foundation reinforcement and enclosure structure construction are conducted; excavating to a designed elevation, completing a main body structure of the open excavation section channel, backfilling upper earthwork, starting to perform MJS and freezing method reinforcement on an excavation area of the underground excavation section, forming a stable frozen cement soil curtain around the excavation area, excavating the underground excavation section channel until receiving, and completing the construction of the underground communication channel. According to the construction method, stratum disturbance in the construction process of the underground communicating channel is effectively reduced, the influence on existing buildings is avoided, frozen cement soil with high strength and water stop performance is formed in the underground excavation section, and it is guaranteed that construction of the entrance and exit of the underground communicating channel close to the existing structure underneath pass pipe gallery is safe and reliable.
本发明公开了一种临近既有结构下穿管廊的地下连通道出入口明挖与冻结暗挖联合施工方法，所述方法具体包括与既有地铁出入口连接的明挖段施工和下穿管廊的暗挖段施工，首先进行明挖段基坑地基加固及围护结构施工，开挖至设计标高，并完成明挖段通道主体结构，回填上部土方，开始对暗挖段开挖区域进行MJS和冻结法加固，使开挖区周围形成稳定的冻结水泥土帷幕，开挖暗挖段通道，直至到达接收，完成地下连通道施工。本发明所述施工方法，有效的减少了地下连通道施工过程中的地层扰动，避免了对既有建构筑物的影响，暗挖段形成具有高强度及止水性能的冻结水泥土，保证临近既有结构下穿管廊的地下连通道出入口施工安全可靠。
Open excavation and freezing underground excavation combined construction method for entrance and exit of underground communicating channel close to existing structure underneath penetrating pipe gallery
The invention discloses an open excavation and freezing underground excavation combined construction method for an underground communicating channel entrance and exit close to an existing structure underneath-penetrating pipe gallery, and the method specifically comprises the steps of open excavation section construction connected with an existing subway entrance and exit and underground excavation section construction of the underneath-penetrating pipe gallery, and specifically comprises the steps that firstly, open excavation section foundation pit foundation reinforcement and enclosure structure construction are conducted; excavating to a designed elevation, completing a main body structure of the open excavation section channel, backfilling upper earthwork, starting to perform MJS and freezing method reinforcement on an excavation area of the underground excavation section, forming a stable frozen cement soil curtain around the excavation area, excavating the underground excavation section channel until receiving, and completing the construction of the underground communication channel. According to the construction method, stratum disturbance in the construction process of the underground communicating channel is effectively reduced, the influence on existing buildings is avoided, frozen cement soil with high strength and water stop performance is formed in the underground excavation section, and it is guaranteed that construction of the entrance and exit of the underground communicating channel close to the existing structure underneath pass pipe gallery is safe and reliable.
本发明公开了一种临近既有结构下穿管廊的地下连通道出入口明挖与冻结暗挖联合施工方法，所述方法具体包括与既有地铁出入口连接的明挖段施工和下穿管廊的暗挖段施工，首先进行明挖段基坑地基加固及围护结构施工，开挖至设计标高，并完成明挖段通道主体结构，回填上部土方，开始对暗挖段开挖区域进行MJS和冻结法加固，使开挖区周围形成稳定的冻结水泥土帷幕，开挖暗挖段通道，直至到达接收，完成地下连通道施工。本发明所述施工方法，有效的减少了地下连通道施工过程中的地层扰动，避免了对既有建构筑物的影响，暗挖段形成具有高强度及止水性能的冻结水泥土，保证临近既有结构下穿管廊的地下连通道出入口施工安全可靠。
Open excavation and freezing underground excavation combined construction method for entrance and exit of underground communicating channel close to existing structure underneath penetrating pipe gallery
一种临近既有结构下穿管廊的地下连通道出入口明挖与冻结暗挖联合施工方法
YANG PING (Autor:in) / HAN LINLIANG (Autor:in) / FENG JUNQING (Autor:in) / CHEN LIAN (Autor:in) / YANG NING (Autor:in) / ZHANG TING (Autor:in) / HE WENLONG (Autor:in)
05.08.2022
Patent
Elektronische Ressource
Chinesisch
Underground excavation heightening construction method for underground pipe gallery structure
| Europäisches Patentamt | 2024
Slope Excavation Method and Excavation Device using Underground Existing Entrance
| Europäisches Patentamt | 2017
Underground excavation construction method for multi-cabin pipe gallery
| Europäisches Patentamt | 2022
High-temperature melting extrusion excavation construction method for underground pipe gallery
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2023