穿越长江轨交区间隧道设计难点的分析和研究

Analysis and Study of Design Difficulties of Interval Tunnel of Yangtze River Crossing Rail Transit Line

长距离越江区间隧道在工程建设中面临众多的技术难点。结合南京轨交10号线穿越长江工程,对隧道结构、防水设计、防灾系统、盾构长距离掘进施工、盾构始发接收方案等重难点进行了分析和研究,并在工程实践中成功应用,取得了较好的效果。这对类似工程的设计、施工具有借鉴意义。

A river-crossing interval tunnel with long distance faces many technical difficulties in construction. Combined with the construction of Yangtze River crossing interval tunnel of Nanjing rail transit line 10,these key issues of tunnel structure and waterproofing design,disaster prevention system,long distance shield machine tunnelling, shield launching / receiving scheme are studied. The study results are successfully applied in engineering practice to obtain good achievements. It will be a reference for the design and construction of similar engineering.