Abstract It is critical to guarantee the safety of adjacent pipelines during the construction of an urban subway tunnel. Using the Tonghuamen-Hujiamiao section of Xi'an Metro Line 3 as an example, a FLAC numerical simulation was used to obtain the law of influence of bored subway tunnel construction on the deformation of adjacent pipelines that are parallel or perpendicular to the tunnel axis. The deformation tendency of pipelines after the subway passed through the f4 ground fissure was analyzed and predicted, and the technical measures for a subway tunnel passing through the f4 ground fissure, as well as the protective measures for adjacent pipelines, were put presented. The engineering practices show that the control measures proposed in this paper were reasonable and effective.
Abstract：
It is critical to guarantee the safety of adjacent pipelines during the construction of an urban subway tunnel. Using the Tonghuamen-Hujiamiao section of Xi'an Metro Line 3 as an example, a FLAC numerical simulation was used to obtain the law of influence of bored subway tunnel construction on the deformation of adjacent pipelines that are parallel or perpendicular to the tunnel axis. The deformation tendency of pipelines after the subway passed through the f4 ground fissure was analyzed and predicted, and the technical measures for a subway tunnel passing through the f4 ground fissure, as well as the protective measures for adjacent pipelines, were put presented. The engineering practices show that the control measures proposed in this paper were reasonable and effective.
GAO Bing-Li
.Influence of Bored Subway Tunnel Construction on the Deformation of Existing Pipelines and Control Techniques [J] MODERN TUNNELLING TECHNOLOGY, 2014,V51(4): 96-101
2014, Vol. 51 