摘要
本文推导了不同掩埋深度的掩埋巷道顶板压力计算公式。相似材料试验表明，加固巷道围岩并使用可缩性支架可较好地维护深埋巷道的稳定性。理论计算还指出，当埋深大于１０ｍ时，重载自卸卡车在掩埋巷道顶板引起的应力已经很小，从上方通过时不会影响其稳定性。
In this paper, formula for calculating cover pressures of buried tunnel at different depth is deduced. The results obtained from equivalent material test show that the stability of deep buried tunnel can be maintained very well by using compressible support. Also from theoretical calculation,in consideration of that the full car causes a small stress in crown rock of the tunnel,it can smoothly run over without any deleterious effect on the buried tunnel when the depth is more than 10 meters.
出处
《有色金属》
CSCD
1996年第1期5-9,共5页
Nonferrous Metals
基金
煤炭部"八五"攻关项目
关键词
露天矿
掩埋巷道
稳定性
open cut mine
buried tunnel
stability study
