摘要
考虑了新疆焦煤集团大倾角硬顶软底松软煤层的特殊性质和赋存环境复杂性,利用FlAC3D数值模拟软件对预裂弱化前后顶板应力变化特征和运移规律进行计算对比分析,结果表明,FlAc3D数值模拟软件能较好地应用于现场,数值模拟结果对采煤工作面安全开采具有一定的理论参考。
Considering the special nature and the dipping seam ,hard roof, soft floor and soft coal in tic of stress and the rule of movement of the roof occurrence of environmental Xinjiang prime coking coal, complexity for the steeply the variation characterisaround the segment pre-blasting were calculated and comparatively analyzed by using FlAC^3D program. The results indicate FlAC^3D program can be used at insite mining, and the results of numerical analysis can provide a certain reference for safe mining of the workface.
出处
《西安科技大学学报》
CAS
北大核心
2010年第1期7-13,共7页
Journal of Xi’an University of Science and Technology
基金
国家自然科学基金项目(10772144
10402033)
教育部新世纪优秀人才支持计划项目(NCET-04-972)
关键词
大倾角煤层
坚硬顶板
预裂弱化
数值模拟
steep coal seams
hard roof
segment pre-blasting
numerical analysis
