综放开采沿工作面倾向顶板垮落规律  

Roof breaking law along top-coal caving face

作　　者：侯树宏[1,2] 柴敬[2] 邱标[2] 

机构地区：[1]神华宁夏煤业集团羊场湾煤矿,宁夏灵武751409 [2]西安科技大学能源学院,陕西西安710054

出　　处：《西安科技大学学报》2009年第3期266-269,共4页Journal of Xi’an University of Science and Technology

基　　金：陕西省重点实验室项目(02JS43)

摘　　要：为了研究综放工作面覆岩倾向破断规律,采用红外式综采支架压力监测仪,对灵武矿区磁窑堡二矿C142综放工作面矿压进行了监测,利用RFPA2D数值模拟软件对该工作面倾向覆岩破断规律进行了模拟。研究表明,工作面沿倾向矿压规律明显,直接顶和老顶破断均从工作面上部开始,随着工作面推进,破断位置逐步向工作面中部转移。工作面端头受压力拱保护,压力显现不明显,工作面上下顺槽煤壁支承压力规律明显。本论文对类似工作面矿压监测、生产管理提供了依据。For the study on strata behavior along dip direction of top-coal caving face, ZDYJ - ⅡB infrared instrument is applied to observe the rock pressure of C142 top-coal caving face in the No. 2 Ciyaopu Coal Mine, Ningxia. RFPA 2D is used to simulate the strata break behavior along dip direction. It is indicated that the periodic strata behavior along top-coal caving face is obvious, the immediate roof and the main roof demolished from the top of top-coal caving face, and with the advancing of the coal face, the demolished position transferring to the middle part along the top-coal caving face. The pressure of the side of the coal face isn＇t obvious for it is protected by the pressure arch. However, the coal wall pressure of wind roadway and haulage roadway is obvious. This paper provides some evidences for the monitoring of ground pressure and the production management of top-coal caving face.

关 键 词：综放开采 倾向矿压 顶板垮落 

分 类 号：TD823.49[矿业工程—煤矿开采]