摘要
本文论述了巷道开孔应力卸载的实质，以轴变论和开孔卸载后使巷道围岩达到较好的受力状态为出发点，初步提出了确定开孔卸载参数的方法，并通过有限元数值计算，验证了这一方法。
The paper discusses essence of unloading by hole drilling in underground roadway,Starting from the theory of axle change and better stress distribution in surrounding rock by unloading,we have given a preliminary method for determining parameter of unloading.Through FEM calculation,the paper has verified this method.
出处
《岩土力学》
EI
CSCD
1995年第1期46-53,共8页
Rock and Soil Mechanics
关键词
巷道
开孔
卸载参数
应力轴比
unloading by hole drilling
theory of axle change
load-bearing arch
axle ratio of stress
