关键词: 高速公路隧道, 地下开采, 采动损害, 防护措施

Abstract: 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.

Key words: Expressway tunnel, Underground mining, Mining damage, Protective measures