地下开采对高速公路隧道的影响研究

摘要

To grasp the effect of underground coal mining on the expressway tunnel and ensure the safety of the expressway tunnel,and based on the prediction of the surface movement and deformation,the influence of underground mining on the expressway is analyzed in accordance with the expressway characteristics.The research results show that:the mining damage conforming to level I of damage criteria for general buildings can be classified as a minor damage.Proper protective measures in aspect of the resistance to deformation should be undertaken for two wall rocks with grade V inside the tunnel in order to reduce the adverse effect of mining.The results play a guiding role in the construction of the expressway,and have certain reference values and theoretical implications for similar expressway tunnels.%为掌握地下煤层开采对西南某高速公路隧道的影响程度,保护高速公路隧道的安全,通过地表移动和变形预计,结合高速公路隧道特点,分析了地下开采对高速公路隧道的影响.研究结果表明:隧道采动损坏等级为一般建筑物的I级损害标准,属于轻微损坏;隧道内的2处V级围岩,应采取适当的抗变形措施来减小采动影响.研究结果指导了高速公路隧道的建设,对相似工程具有一定的参考价值和理论意义.