长壁间隔式开采方法研究及其应用  

Long wall interval mining method and its application

作　　者：侯忠杰[1] 付二军[1,2] 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]南梁矿业有限责任公司,陕西府谷719400

出　　处：《西安科技大学学报》2009年第1期1-6,共6页Journal of Xi’an University of Science and Technology

基　　金：国家自然科学基金资助项目(50074023)

摘　　要：陕北神府矿区中小煤矿均采用房柱式采煤方法,多个煤矿进行长壁采煤方法试验均因浅埋煤层矿压显现剧烈,单体支柱不能有效的控制顶板而失败。南梁煤矿2-2煤层属于地表厚松散层浅埋煤层、改建设计改为刀柱式采煤法,为了提高矿井的经济效益,提出了长壁间隔式开采方法,通过相似材料模拟实验、数值模拟、理论分析和现场试验确定间隔开采方法工作面合理开采段长度和煤柱尺寸。南梁煤矿采用间隔开采方法已成功采完9个工作面,成为榆神府矿区中小型矿井第1个采用长壁布置单体支柱开采的矿井。间隔开采方法已被临近煤矿所采用。The bord-and-pillar method is all adopted in medium-small coal mines in Yu-Shen-Fu mining area. Many long wall method tests failled because individual hydraulic props can＇t control the ground pressure of shallow seam. The pillar-cum-stick method is used for the shallow seam of Nan Liang Mine when designed. In order to improve the economic benefits, the interval mining method is put forward. Reasonable advance distance and pillar size are defined through theory study, simulation experiment, numerical simulation and field testing analysis. Nan Liang Mine has succeeded in finishing the 9 faces of the interval method. In Yu-shen-fu mining area, Nan Liang Mine becomes the first medium-small coal mine in which long wall face equipped with individual hydraulic props. The interval mining method is successfuly adopted in near mines.

关 键 词：浅埋煤层 间隔式开采方法 无灾害垮落 防溃沙 保水开采 

分 类 号：TD31[矿业工程—矿井建设]