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十堰市拟建林安物流园园区下方为既有襄渝II线的伏龙口2号隧道,物流园区的建设会对隧道安全造成一定影响。利用数值模拟分析园区建设对既有隧道的影响,分析结果认为园区内规划建筑物荷载对既有隧道安全影响微弱,而园区场地整平形成的填方荷载会对隧道的稳定性形成严重的威胁,如需填土,建议采用桩板结构或拱形支撑结构将填方荷载转移到隧道两侧。分析结果能为林安物流园的建设提供重要的依据,也为类似工程建设提供有价值的参考。
Shiyan Lin’an Logistics Park to be built under the park as the Xiangfan Yu II Line Fu Longkou No. 2 tunnel construction of the logistics park will have a certain impact on the tunnel safety. The numerical simulation is used to analyze the influence of the park construction on the existing tunnels. The analysis results show that the load of the planned buildings in the park has a weak influence on the existing tunnel safety, while the square load formed by the site leveling in the park area poses a serious threat to the stability of the tunnel If filling is required, it is recommended to use pile-plate structure or arched support structure to transfer the fill load to both sides of the tunnel. The results of the analysis can provide an important basis for the construction of Lin’an Logistics Park and provide valuable reference for the construction of similar projects.