Huge deformation of wall rock has a strong impact on the stability of roadway in many undergroundopening engineering.
在许多地下巷道工程中，围岩巨大的变形严重影响巷道稳定性。
2
The stability probability of blocky surround rocks in a large undergroundopening is calculated according to the reliability model.
并利用该模型分析了某大型地下空间块状岩体的稳定概率。
3
By analysing for engineering examples, we find that the calculating model reflect sufficiently the effect of anchor supporting for. undergroundopening.