The compound roof fall accident of the individual hydraulic prop face is analyzed. The accident mechanization and prevention method are pointed.
对单体支柱工作面复合型顶板推垮型事故进行了分析，提出了事故发生的机理和预防办法。
The article waterproof roof membrane leakage causes and prevention methods were discussed.
文章对卷材防水屋面渗漏的原因及防治法子进行了探讨。
The case of accidents, the proposed blasting mining roof caving face the basic requirements for control and prevention of incidents of roof effective measures, must learn.
该文通过事故案例分析，提出了炮采放顶煤工作面顶板控制的基本要求和预防顶板事故发生的有效措施，有一定借鉴意义。
Simultaneously, the gas control in roof caving and fully mechanized mining is the unsubstantial aspect of prevention measures for gas disasters in all over the world.
同时，放顶煤综采工作面的瓦斯治理也是世界各国煤矿瓦斯灾害防治技术的薄弱环节。
In this paper, we analyzed the causes of leakage of asphalt waterproof roof, advanced methods of leakage prevention and some effective method of repair when the leakage had happened.
本文分析了油毡屋面渗漏的原因，并提出了相应的有效措施以及渗漏之后的各种维修方法。
In this paper, we analyzed the causes of leakage of asphalt waterproof roof, advanced methods of leakage prevention and some effective method of repair when the leakage had happened.
本文分析了油毡屋面渗漏的原因，并提出了相应的有效措施以及渗漏之后的各种维修方法。
应用推荐