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A platform for research: civil engineering, architecture and urbanism
Subway tunnel deformation control method for ultra-short-distance excavation above subway
A subway tunnel deformation control method through ultra-short distance excavation above a subway relates to the field of tunnel maintenance and comprises the following steps that two working wells are constructed outside a subway influence area range, and the two working wells comprise a starting well and a receiving well; and a steel pipe curtain is jacked from the starting well through a pipe jacking machine, strides over the subway influence area to the receiving well and is fixedly connected with the working well structure and the enclosure wall, so that a two-point constraint beam type structure is formed. By means of the measures, subway deformation can be effectively reduced when the ultra-close-distance tunnel above the subway is constructed; and meanwhile, the uplift piles under the working well are further used for resisting floating and controlling sinking of the permanent structure of the tunnel, the economic benefit is high, and the technical advantage is large.
一种地铁上方超近距开挖对地铁隧道变形控制方法，涉及隧道维护领域，包括如下步骤：在地铁影响区范围外施工两个工作井，所述两个工作井包含一个始发井和一个接收井；通过顶管机将钢管幕从所述始发井顶进，并跨过所述地铁影响区至所述接收井，并与工作井结构、围护墙连接固定，以形成两点约束的梁式结构。通过上述措施，可有效降低地铁上方超近距离隧道施工时地铁变形；同时，进一步利用工作井下抗拔桩作为隧道永久结构的抗浮、控沉作用，经济效益高，技术优势大。
Subway tunnel deformation control method for ultra-short-distance excavation above subway
A subway tunnel deformation control method through ultra-short distance excavation above a subway relates to the field of tunnel maintenance and comprises the following steps that two working wells are constructed outside a subway influence area range, and the two working wells comprise a starting well and a receiving well; and a steel pipe curtain is jacked from the starting well through a pipe jacking machine, strides over the subway influence area to the receiving well and is fixedly connected with the working well structure and the enclosure wall, so that a two-point constraint beam type structure is formed. By means of the measures, subway deformation can be effectively reduced when the ultra-close-distance tunnel above the subway is constructed; and meanwhile, the uplift piles under the working well are further used for resisting floating and controlling sinking of the permanent structure of the tunnel, the economic benefit is high, and the technical advantage is large.
一种地铁上方超近距开挖对地铁隧道变形控制方法，涉及隧道维护领域，包括如下步骤：在地铁影响区范围外施工两个工作井，所述两个工作井包含一个始发井和一个接收井；通过顶管机将钢管幕从所述始发井顶进，并跨过所述地铁影响区至所述接收井，并与工作井结构、围护墙连接固定，以形成两点约束的梁式结构。通过上述措施，可有效降低地铁上方超近距离隧道施工时地铁变形；同时，进一步利用工作井下抗拔桩作为隧道永久结构的抗浮、控沉作用，经济效益高，技术优势大。
Subway tunnel deformation control method for ultra-short-distance excavation above subway
一种地铁上方超近距开挖对地铁隧道变形控制方法
LIU FAQIAN (author) / ZHAO JIANXIN (author) / YANG WEI (author) / LU GUOPING (author) / TANG HUA (author) / YANG FEI (author) / LIN NAN (author) / ZHANG LELE (author) / LUO YANJIAN (author)
2022-11-04
Patent
Electronic Resource
Chinese
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