本文通过结合某隧道工程实例,针对该煤层瓦斯含量大,瓦斯超限时有出现,具有一定煤与瓦斯突出危险性。故在整个瓦斯隧道施工过程中,以防治煤与瓦斯突出为重点,杜绝煤系地段瓦斯超限为目标。通过充分掌握隧道前方煤层赋存以及煤层瓦斯状态(瓦斯压力、瓦斯含量、突出危险参数等),特别是作好煤与瓦斯突出危险性的预测,采取可行的安全技术措施,防止可能的瓦斯灾害发生。 In this paper, by combining a tunnel project example, for the coal seam gas content, gas over time there, with a certain risk of coal and gas outburst. Therefore, in the process of construction of the entire gas tunnel, the prevention and control of coal and gas outburst as the key point to eliminate overburden coal-line section as the goal. By fully grasping the occurrence of coal seams in front of the tunnel as well as the gas status of the coal seam (gas pressure, gas content, highlighting the dangerous parameters, etc.), especially for the prediction of coal and gas outburst danger, feasible safety measures are adopted to prevent possible gas disasters occur.