综放工作面过集中煤柱矿压显现规律及控制技术

Mine Pressure Behavior Law and Control Technology for Fully-mechanized Caving Face Passing under Over Concentrated Coal Pillars

工作面过上覆集中煤柱期间的矿压动载是近距离煤层开采过程中最为关注的问题。采取理论与实际相结合的分析模式,运用数值模拟与现场分析的方法与手段,对高瓦斯矿井大采高综放工作面的矿压显现规律进行研究和分析,同时提出其主要控制技术,以达到对综放工作面过集中煤柱矿压显现规律的把握,确保工作面煤壁的稳定性。

The dynamic load of mine pressure during the working face passing under the overlying concentrated coal pillar is the most important issue concerned in the process of close seam mining.The analysis mode of combining theory with practice was adopted,and the methods and means of numerical simulation and on-site analysis were used to study and analyze the law of mine pressure behavior in the fully-mechanized caving face with large mining height in the high gassy mine,and the main control technology was proposed at the same time,,so as to grasp the mine pressure behavior law of the fully-mechanized caving face passing under the concentrated coal pillars,and ensure the stability of the coal wall of the working fac.