摘要
本文在总结国内外沿空留巷所取得经验和成果的基础上,主要研究了沿空留巷的合理支护和沿空留巷的卸压保护。推导出了中等稳定顶板条件下计算支护系统所需阻力和可缩量的公式,并进行了相应的模拟实验研究。运用非线性有限元法和相似模拟实验对留巷卸压进行了探讨。
Based on the experiences and achievements in the roadways retained along gobedge at home and abroad, the paper researches on two questions mainly: the rational support and the defence by unloading of roadways retained along gobedge.The formula of calculation of support system resistance and yieldability under condition of medium stable roof is derived and proved through eguivalent model testing.The unloading in the roadways is studied by means of non-linear finite element method and eguivalent model testing
出处
《西安矿业学院学报》
北大核心
1991年第3期1-8,共8页
Journal of Xi'an University of Science & Technology
关键词
沿空留巷
巷道
支护
卸压
煤矿
roadway retained along gobedge
support in roadway
support beside roadway
defence of roadway by
unloading
