煤炭开采对临近高速公路隧道结构安全性影响研究  

Study on Influence of Coal Mining on Structural Safety of Adjacent Expressway Tunnel

作　　者：王华牢[1] 张翾[1] 杜建明 WANG Hua-lao;ZHANG Xuan;DU Jian-ming(Research Institute of Highway of Ministry of Transport,Beijing 100088,China)

机构地区：[1]交通运输部公路科学研究院,北京100088

出　　处：《山西交通科技》2022年第6期1-5,共5页Shanxi Science & Technology of Transportation

摘　　要：高速公路隧道受煤矿开采扰动下结构安全性研究对公路隧道安全运营以及煤矿资源合理开采意义重大。结合长梁山2号隧道出现的结构裂损问题,开展了结构裂缝与拱顶沉降现场实测,分析隧道结构病害发展与临近南沟煤矿工作面开采之间的内在联系;对南沟煤矿50501工作面停采与采毕两种工况下的隧道结构变形量与塑性区进行三维数值仿真,对比分析隧道结构的安全状态。相关研究成果可为类似隧道工程的灾害防治提供参考。Studying the structural safety of the expressway tunnel under the mining disturbance is vital for the safe operation of highway tunnels and the rational exploitation of coal resources.Combined with the problem of structural cracking in Changliangshan No.2 Tunnel,this paper measured the structural cracking and vault subsidence in the field to analyze the internal relation between the disease development of the tunnel structure and the mining in Nangou Coal Mine Face.Under two working conditions of stopping mining and mining completion in the 50501 working face of Nangou Coal Mine,this paper conducted the 3D numerical simulation of the structural deformation volume and plastic zone of the tunnel to compare the safe states of the tunnel structure.The study results can provide a reference for the disaster prevention of similar tunnel engineering.

关 键 词：高速公路隧道 结构安全 煤矿开采 监控量测 数值仿真 

分 类 号：TD82[矿业工程—煤矿开采] U458[矿业工程—矿山开采]