摘要
以输气管道途经的沉陷区为工程背景,运用有限差分法FLAC3D计算软件,模拟急倾斜煤层开采过程中不同开采水平下地表浅部应力变化过程,探讨了地表浅部应力分布规律,分析了地表裂缝产生的原因及应力变化对输气管道安全的影响。研究结果为合理解释地表裂缝的出现及输气管道运营安全评价具有重要的理论和实际意义。
This paper applied FLAC^3D to simulating stress variation process of shallow surface under different mining levels in mining steeply inclined coal seam,researched stress distribution rules of shallow surface and analyzed surface fissure cause and influence of stress variation on gas pipeline safety.Research results might rationally explain surface fissure and provide important theoretical and practical reference to safety evaluation of gas pipeline.
出处
《煤矿开采》
北大核心
2010年第4期29-31,108,共4页
Coal Mining Technology
基金
国土资源部百名优秀青年科技人才计划资助项目(2007)
科技部公益性行业科研专项(200911036)
关键词
急倾斜煤层
管道安全
应力
地表裂缝
steeply inclined coal seam
pipeline safety
stress
surface fissure
