短壁开采中煤柱尺寸对地表沉陷的影响  

The Effect of Coal Pillar's Sizes on the Ground Subsidence in Short-wall Mining

作　　者：何兴华[1] 王连国[1] 梁兴旺[1] 李智[1] 

机构地区：[1]中国矿业大学理学院力学系,江苏徐州市221008

出　　处：《矿业研究与开发》2007年第1期70-72,共3页Mining Research and Development

基　　金：国家自然科学基金重大项目(50490270);国家杰出青年基金项目(50225414);教育部科技研究重点项目(105024)

摘　　要：利用岩石破裂与失稳分析系统RFPA2D对在短壁式开采中留设不同宽度煤柱的开采过程进行模拟,分析比较了不同宽度的煤柱对地表沉陷的影响;再现了采动岩体的破坏机理和移动规律,确定了合理的煤柱尺寸,为实现井巷保护、资源合理利用和经济的可持续发展提供了基础性的依据。The process of short -wall mining with different wide coal pillars is simulated by rock failure process analysis system （RFPA2D） in this text, the influences of different wide coal pil- lars no the ground subsidence are analyzed and compared, the damage mechanism and movement rule of rock mass influenced by mining action are reproduced, the appropriate sizes of coal pillar are determined, it offers the basic basis to realizing the protection of laneway, the reasonable utilization of resources and the sustainable development of economy.

关 键 词：短壁开采 地表沉陷 RFPA 数值模拟 

分 类 号：TD327[矿业工程—矿井建设] TD822