充填体宽度对沿空留巷顶板形变特征的影响  

Influence of Backfill Width on Roof Deformation Characteristics of Gob-side Entry Retaining

作　　者：张辛亥[1,2] 张铎[1,2] 马金龙[3] 肖旸[1,2] 吴慷 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]西部矿井开采及灾害防治教育部重点实验室,陕西西安710054 [3]西安科技大学建筑与土木工程学院,陕西西安710054

出　　处：《煤矿安全》2014年第11期203-206,共4页Safety in Coal Mines

基　　金：国家自然科学基金重点资助项目(51134019);国家自然科学基金资助项目(51204136);国家教育部新世纪优秀人才支持计划资助项目(NCET-10-0932);陕西省国际合作资助项目(2012KW-27-01)

摘　　要：为了探讨充填体宽度对沿空留巷顶板形变特征的影响,以神宁乌兰矿5768回采工作面巷帮充填沿空留巷为背景,采用Midas/GTS数值模拟和现场实测相结合的方法,研究不同宽度充填体对沿空留巷顶板形变特性影响规律。结果表明:该数值模拟方法确定的巷旁充填体宽度在围岩逐渐稳定后,顶板形变量小、充填体稳定,说明用该模拟确定的充填体宽度科学合理。In order to discuss the influence of backfill width on deformation features of gob - side entry retaining roof, we take roadside filling at 5768 working face in Shenning Wulan Coal Mine as engineering background, and use MidasGTS numerical simulation and field measurement, study influence law of different width of backfill on deformation feature of entry retaining roof. results show that the determinated width by numerical simulation is small roof deformation with stable backfill after surrounding gradually stabilized, which shows that the backfill width is scientific and reasonable.

关 键 词：沿空留巷 数值模拟 充填体宽度 力学分析 变形特征 

分 类 号：TD322.1[矿业工程—矿井建设]