【摘要】 千米深立井开凿过程中揭开突出煤层成为风险最大、成本最高、时间最长的工序,依据《防治煤与瓦斯突出规定》和工程地质条件,安全顺利完成鹤壁煤业集团公司第三煤矿千米深立井特厚突出煤层揭煤的工程实践。更多还原

【Abstract】 In the process of excavating a kilometer shaft,uncovering outburst coal seam is the greatest risk,highest cost,longest processes.According to Coal and Gas Outburst Prevention Provisions and engineering geology conditions,the engineering practice of a kilometer shaft uncovering very thick outburst coal seam in No.3 coal mine of Hebi coal industry group company is safely and smoothly completed.更多还原