基于“V”字形法则的煤层开采对黄土滑坡扰动的模拟  

Simulation of Coal Seam Mining on Loess Landslide Disturbance Based on "V" Glyph Rule

作　　者：孙学阳[1] 邬景方 李鹏强[1] 杨旭[1] 李聪[1] 何拓平 

机构地区：[1]西安科技大学地质与环境学院,陕西西安710600

出　　处：《煤矿安全》2017年第3期56-59,共4页Safety in Coal Mines

摘　　要：采用相似材料模拟相结合数值模拟的方法,模拟不同含煤岩系产状下的煤层井工开采,对比分析煤层开采对黄土滑坡的影响,研究煤系地层不同产状条件下的黄土滑坡稳定性条件和发育规律。结果表明:当煤层倾角30°时,煤系地层倾向与滑坡倾向相同条件下,工作面推进至100 m时黄土滑坡处于临界失稳状态;煤系地层倾向与滑坡倾向相反时,工作面推进至120 m时黄土滑坡处于临界失稳状态。因此,煤系地层倾向与黄土层倾向一致时比煤系地层倾向与黄土层倾向相反时更容易诱发黄土滑坡。The characteristics of overlying strata destruction and surface movement caused by coal seam mining by similar material and numerical simulation experiment methods are simulated and analyzed.Through the results contrast of underground mining,the study also summarized the stability conditions and development rules of loess landslide of coal measure strata in different occurrence conditions.Taking the same 30° dip angle of coal seam,the results show that the loess landslide is in the state of critical instability when working face advances to 100 meters and the landslide has the same inclination with the coal strata,whereas,as the coal strata and the landslide have the adverse inclination,the loess landslide is in the state of critical instability when the working face advances to 120 meters.It turns out that the status of the same inclination between coal measure strata and landslide is easier to induce the loess landslide than the status of the adverse inclination.

关 键 词：“V”字形法则 相似材料模拟 数值模拟 黄土滑坡 井工开采 

分 类 号：TD823.21[矿业工程—煤矿开采]