拟建地铁车站施工对新建电力隧道结构安全影响分析

Analysis on the Safety Influence of the Proposed Subway Station Construction on the New Power Tunnel Structure

随着我国基础设施建设的快速发展,城市地铁建设在大中城市也越来越多,然而复杂的城市既有管线往往会受到地铁车站及区间施工的影响。现有某地铁车站施工需穿越既有电力隧道结构,采用大型有限元软件ANSYS进行三维仿真分析,内容包括拟建地铁车站施工前、施工后电力隧道监测断面位移分析和电力隧道监测断面结构主应力分析。分析结果表明,拟建地铁车站施工对新建电力隧道有一定影响,经过检算结构内力,可知新建电力隧道结构是安全的。

With the rapid development of China's infrastructure construction, the subway is built in more and more large and medium cities. However, complex existing pipelines are often affected by the subway station and its interval construction. Now a subway station needs to go through the existing power tunnel structure. The three-dimensional simulation was applied by the means of the large-scale finite element software ANSYS, to analyze the displacement analysis of the power tunnel monitoring section, and the main stress analysis of the power tunnel monitoring section's structure before and after the construction of the proposed subway station. The results show that, the construction of the proposed subway station has a certain effect on that of the new power tunnel. According to the calculation of the internal force of the structure, the structure of the new power tunnel proves to be safe.