基本解释：隅角棱镜
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Chronological Analysis on the Words Yu and Jiao(隅/角);“隅/角”历时替换小考
Gas accumulation automatic monitoring-processing method on upper corner of fully mechanized coal mining face;综采工作面上隅角瓦斯积聚自动监控处理方法
The study on the Numerical Simulation and determination of parameters in gas control at the upper corner in U-Type ventilation face;回采采空区上隅角瓦斯治理的数值模拟与参数确定
In coal mines wit high content of gas,the gas concentration exceeding limit in the return air flow and the gas accumulation in upper corner are the main factors of restricting the production capacity of working face.在高瓦斯矿井中,回风风流中瓦斯含量超限和上隅角瓦斯积聚是限制工作面生产能力的主要因素。
The effective and feasible fuction of gas auumulation mining face top corner are improved.瓦斯聚积是煤矿安全生产的重大隐患,在评价与分析现有治理方法的基础上,采用纵向风障法解决回采面上隅角瓦斯积聚,为煤矿安全生产提供了保障。
Aimed at top corner gas management at the low gas blasting face,by upper goaf drainage with decompression in self coal seam,the experience is tried,the effect is obvious.针对低瓦斯炮采工作面上隅角瓦斯治理,利用本层上采空区泄压释放,进行尝试实验,效果明显。
Aim at the problem of top corner gas big at work face,seriously influences safety and restrains production,the method of direct drawing top corner gas has been proved sucessful.针对高瓦斯工作面上隅角瓦斯大,严重影响安全,制约生产的问题,采用直接抽放工作面上隅角瓦斯及顶板抽放法取得成功。
In order to improve the recovery rate of resources in the mining areas,solve the problem of excessive Corner Cape gas,this paper introduces the method to realize the mining technology without pillar left in the fully mechanized top coal caving face by taking effective measures to retain the transport lane of the previous working face as the ventilation lane of the next one.为了提高采区的资源回收率,解决高瓦斯工作面隅角瓦斯超限的问题,通过采取有效措施把上一个工作面的运输顺槽保留下来,作为下一个工作面回风巷,实现了综放工作面无煤柱开采技术。
