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以北京地铁6号线南锣鼓地铁隧道施工近接穿越正上方地表老旧民房为例,分析施工过程存在的风险,提出采用大管棚、深孔注浆等多种技术相结合的施工方法,实践证明:采用该方法对近接段隧道进行支护,实现了隧道的顺利施工,同时确保地面建筑物的安全。
This paper takes the old ground house immediately above the crossing through the construction of Nanluogu metro tunnel of Beijing Metro Line 6 as an example to analyze the risks existing in the construction process and put forward the construction method combining many technologies such as big pipe shed and deep hole grouting, Prove: Adopt this method to support the abutting section of tunnel, realize the smooth construction of the tunnel, meanwhile ensure the safety of the ground building.