Jizhong Energy Group Corporation Limited

针对深部煤炭开采产生的地压大、巷道围岩变形剧烈、冲击地压强度和频率增加等问题,冀中能源集团从千米深井充填开采的矿压显现规律研究入手,设计开发了具有密实推压功能的充填液压支架、采充平行作业充填工艺和大垂深充填材料输送系统,并针对千米深井的开采实际,运用高水材料进行充填开采,形成了千米深井充填开采的完整技术体系。在邢东矿的实践表明:千米深井充填开采技术及装备的应用,有效控制了巷道围岩变形,解决了大埋深煤层开采对地表破坏面积大的难题,保护了生态环境。

According to the ground pressure increased, serious surrounding rock deformation of the mine roadway, high intensity of mine strata pressure bumping a nd frequency increased, and others problems occurred in the coal mining in the deep mine, from the study on the mine strata pressure behavior law of the backfill minin g in the deep mine with depth over 1 000 m, a backfill hydraulic powered support with high density pushing pressure function, a mining and backfill simultaneous techni que and depth vertical backfill materials transportation system were designed and developed by Jizhong Energy Group.According to the mining practices in the deep mi ne with the depth over 1 000 m, the high water material was applied to the backfill mining and a completed technical system of the backfill mining in the deep mine was established.The practices in Xingdong Mine showed that the application of the backfill mining technology and equipment in the deep mine could effectively control the s urrounding rock deformation of the mine roadway, well solve the difficult problem of the large surface ground failure area caused by the mining in the deep depth seam and could well protect the ecologic environment.