围岩大变形原因及控制技术研究

Study on Causes and Control Technology of Large Deformation of Surrounding Rock

在掘进工作面,如果巷道处在应力集中区内,会使围岩变形量过大,影响输送带的布置和轨道的铺设,增加了巷道整修量,制约了工作面的掘进速度。以鹿洼煤矿2304(3)掘进工作面运输巷为研究对象,对该巷道围岩产生大变形的原因进行分析,提出了相应技术措施来控制围岩变形量,实现了该工作面的正常掘进。

In the heading face, if the roadway is in the stress concentration area, the deformation of the surrounding rock will be too large, the arrangement of the conveyer belt and the laying of the track will be affected,the refurbishment quantity of the roadway is increased, and the driving speed of the working face is restricted.Taking the 2304（3） heading face transportation lane in Luwa Coal Mine as the research object, the causes of large deformation of the surrounding rock were analyzed, and the corresponding technical measures were put forward to control the deformation of the surrounding rock, and the normal heading of the working face was realized.