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A platform for research: civil engineering, architecture and urbanism
Cap-shaped reinforcing construction method for miscellaneous fill area at top of tunnel
The invention relates to the technical field of stratum reinforcement, in particular to a tunnel top miscellaneous fill area cap-shaped reinforcement construction method which specifically comprises the steps that area division is conducted according to a tunnel top miscellaneous fill area; carrying out partition edge sealing on the divided areas; and grouting slurry is injected into the subareas after edge sealing. According to the reinforcing construction method, the reinforcing areas in the original area are arranged in a partitioned mode, grouting is carried out according to different reinforcing areas and different grouting liquid and grouting heights, meanwhile, partitioned edge sealing is carried out according to the strong reinforcing areas, the supporting capacity of the reinforcing body surrounding rock is further guaranteed, and therefore the working procedure is reasonably arranged, and the construction efficiency is improved. On the premise that normal excavation and support of the tunnel are not affected, the construction period and the labor cost can be saved, a hard arc-shaped protection shell can be formed on the arch portion of the tunnel and above the arch portion of the tunnel through accurate control over the grouting pipe and design of the mix proportion of grouting liquid, and then the safety of primary support of tunnel excavation can be guaranteed.
本发明涉及地层加固技术领域，具体是一种隧道顶部杂填土区域“帽状”加固施工方法，具体包括：根据隧道顶部杂填土区域，进行区域划分；对划分后的所述区域，进行分区封边；在封边后的所述分区中，进行注浆液注浆。本发明的加固施工方法通过将原区域进行加固区分区设置，并针对不同加固区，进行不同注浆液和注浆高度进行注浆，同时针对强加固区进行分区封边，使得加固体围岩支承能力进一步得到保证，从而提高合理安排工序，可以在不影响隧道正常开挖支护的前提下，节约工期和人工成本，且通过注浆管的精准控制及注浆液的配合比设计，可在隧道拱部及以上形成坚硬的弧形保护壳体，进而可以保证隧道开挖初支的安全性。
Cap-shaped reinforcing construction method for miscellaneous fill area at top of tunnel
The invention relates to the technical field of stratum reinforcement, in particular to a tunnel top miscellaneous fill area cap-shaped reinforcement construction method which specifically comprises the steps that area division is conducted according to a tunnel top miscellaneous fill area; carrying out partition edge sealing on the divided areas; and grouting slurry is injected into the subareas after edge sealing. According to the reinforcing construction method, the reinforcing areas in the original area are arranged in a partitioned mode, grouting is carried out according to different reinforcing areas and different grouting liquid and grouting heights, meanwhile, partitioned edge sealing is carried out according to the strong reinforcing areas, the supporting capacity of the reinforcing body surrounding rock is further guaranteed, and therefore the working procedure is reasonably arranged, and the construction efficiency is improved. On the premise that normal excavation and support of the tunnel are not affected, the construction period and the labor cost can be saved, a hard arc-shaped protection shell can be formed on the arch portion of the tunnel and above the arch portion of the tunnel through accurate control over the grouting pipe and design of the mix proportion of grouting liquid, and then the safety of primary support of tunnel excavation can be guaranteed.
本发明涉及地层加固技术领域，具体是一种隧道顶部杂填土区域“帽状”加固施工方法，具体包括：根据隧道顶部杂填土区域，进行区域划分；对划分后的所述区域，进行分区封边；在封边后的所述分区中，进行注浆液注浆。本发明的加固施工方法通过将原区域进行加固区分区设置，并针对不同加固区，进行不同注浆液和注浆高度进行注浆，同时针对强加固区进行分区封边，使得加固体围岩支承能力进一步得到保证，从而提高合理安排工序，可以在不影响隧道正常开挖支护的前提下，节约工期和人工成本，且通过注浆管的精准控制及注浆液的配合比设计，可在隧道拱部及以上形成坚硬的弧形保护壳体，进而可以保证隧道开挖初支的安全性。
Cap-shaped reinforcing construction method for miscellaneous fill area at top of tunnel
一种隧道顶部杂填土区域“帽状”加固施工方法
CAO WENQIANG (author) / WANG XI (author) / CHAO JUNLIANG (author) / CHEN PENG (author) / PENG JIANGTAO (author) / CHEN DANFENG (author)
2024-05-10
Patent
Electronic Resource
Chinese
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