摘要
以霍州辛置煤矿2204工作面为背景,通过数值模拟开采沉陷过程,分析了采动覆岩移动的规律;讨论了松散层厚度、采深采厚比对覆岩移动及变形的影响。研究表明,在采厚相同的情况下,冒落带的下沉量基本相同;在采深、采厚相同的情况下,随着松散层厚度的减小,弯沉带、裂隙带的沉降量也逐渐减小;在采厚和松散层厚度相同的情况下,随着采深的增加,弯沉带、裂隙带的沉降量逐渐减小,采动影响的范围却有所扩大。
The paper take Huozhou Xinzhi colliery 2204 work surface as background. Using numerical ways to simulatethe mined process, Analysis the regular of rock＇s move and distortion when mined, The factors of The incompact stratum depth, the ration of mined depth are considered and their effects on the erath＇s surface move and distortion are also discussed in the paper.
出处
《华北科技学院学报》
2007年第2期22-25,共4页
Journal of North China Institute of Science and Technology
关键词
采动覆岩
移动
变形
数值模拟
Rock mined
Move
Distortion, Numerical simulation
