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A platform for research: civil engineering, architecture and urbanism
Post-earthquake disaster involution construction method for existing railway tunnel
The invention belongs to the related technical field of railway tunnel post-earthquake involution construction, and discloses an existing railway tunnel post-earthquake disaster involution construction method which comprises the following steps: performing quantity statistics and classification on ground surface cracks generated after an earthquake, and performing open excavation layered ramming and filling treatment; inspecting and renovating or rebuilding the hole project after the earthquake; for an existing tunnel after an earthquake, a temporary steel frame is firstly adopted for protection, and then full-ring radial grouting reinforcement treatment is conducted; thirdly, for the tunnel needing to be dismantled and reconstructed, the tunnel inner contour of a single-center circle structure is adopted, and a certain space is reserved in the section of the tunnel; and meanwhile, a lining of a circular structure is adopted, and a structural form of primary support, full-ring shock absorption and energy dissipation layer, secondary support and reserved space is adopted for lining support. By means of the method, the method can better adapt to the involution construction process of the existing railway tunnel after the earthquake, and the construction requirements of classified renovation, key reinforcement, moderate redundancy, rapidness and safety are met.
本发明属于铁路隧道震后复旧建造相关技术领域，并公开了一种既有铁路隧道震后灾害复旧施工方法，其包括：针对震后产生的地表裂缝，对其进行数量统计及分类，并采用敞口开挖分层夯填的处理；针对震后的洞口工程，进行检查并整治或重修；针对震后的既有隧道，首先采用临时钢架进行防护，然后进行全环径向注浆加固处理；接着，对需拆除重建的隧道，采用单心圆结构的隧道内轮廓且在隧道断面内预留一定空间；同时采用圆形结构的衬砌，并且对衬砌支护采用初期支护+全环减震消能层+二次支护+预留空间的结构形式。通过本发明，能够更好地适应既有铁路隧道震后的复旧施工过程，并满足分类整治、重点加强、适度冗余及快速安全的施工需求。
Post-earthquake disaster involution construction method for existing railway tunnel
The invention belongs to the related technical field of railway tunnel post-earthquake involution construction, and discloses an existing railway tunnel post-earthquake disaster involution construction method which comprises the following steps: performing quantity statistics and classification on ground surface cracks generated after an earthquake, and performing open excavation layered ramming and filling treatment; inspecting and renovating or rebuilding the hole project after the earthquake; for an existing tunnel after an earthquake, a temporary steel frame is firstly adopted for protection, and then full-ring radial grouting reinforcement treatment is conducted; thirdly, for the tunnel needing to be dismantled and reconstructed, the tunnel inner contour of a single-center circle structure is adopted, and a certain space is reserved in the section of the tunnel; and meanwhile, a lining of a circular structure is adopted, and a structural form of primary support, full-ring shock absorption and energy dissipation layer, secondary support and reserved space is adopted for lining support. By means of the method, the method can better adapt to the involution construction process of the existing railway tunnel after the earthquake, and the construction requirements of classified renovation, key reinforcement, moderate redundancy, rapidness and safety are met.
本发明属于铁路隧道震后复旧建造相关技术领域，并公开了一种既有铁路隧道震后灾害复旧施工方法，其包括：针对震后产生的地表裂缝，对其进行数量统计及分类，并采用敞口开挖分层夯填的处理；针对震后的洞口工程，进行检查并整治或重修；针对震后的既有隧道，首先采用临时钢架进行防护，然后进行全环径向注浆加固处理；接着，对需拆除重建的隧道，采用单心圆结构的隧道内轮廓且在隧道断面内预留一定空间；同时采用圆形结构的衬砌，并且对衬砌支护采用初期支护+全环减震消能层+二次支护+预留空间的结构形式。通过本发明，能够更好地适应既有铁路隧道震后的复旧施工过程，并满足分类整治、重点加强、适度冗余及快速安全的施工需求。
Post-earthquake disaster involution construction method for existing railway tunnel
一种既有铁路隧道震后灾害复旧施工方法
YANG XINGZHI (author) / JI SHENGLI (author) / ZHU PENGGANG (author) / LI SHUGUANG (author) / XIE JIANGSHENG (author) / WANG FENG (author) / HE BINGXING (author) / CHEN MAOTAO (author) / WANG SHIJUN (author) / ZHANG JUN (author)
2022-11-22
Patent
Electronic Resource
Chinese
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