摘要
本文运用UDEC进行数值研究得出,松河煤矿15109综放面老顶初次来压步距为19m左右,周期来步距为10m左右,直接顶垮落步距在4m左右。准确判断基本顶来压步距对于研究初采期瓦斯涌出规律有着非常重要的作用,但是数值模拟的结果只有与现场实际观测数值相结合,才能更好地用于指导生产,本研究还有待与现场实测数值接合以便更好地服务于实际生产。
Through a numerical analysis with UDEC,this paper shows that the first weighting interval of 15109 main roof is about 19 m,the Periodical interval is about 10 m,the caving interval of immediate roof is about 4m. In order to study the law of gas emission during the initial mining period,it is very important to determine the basic roof weighting interval. However,the results of numerical simulation can only be used to guide the production when combined with the actual observation values in the field,and the research needs to be jointed with the measured values in order to serve the actual production better.
出处
《科技广场》
2016年第12期8-10,共3页
Science Mosaic
基金
贵州省科技合作计划项目(黔科合LH字[2015]7626号)
六盘水师范学院科研计划项目(编号:LPSSY201416)
六盘水师范学院高层次人才科研启动基金项目(编号:LPSSYKYJJ201412)
关键词
UDEC
初次来压
垮落步距
数值模拟
UDEC
First Weighting
Caving Interval
Numerical Simulation
