From limit state of reduced safety factor, critical failure probabilities and variation coefficients corressponding different maximum possible safety factors were calculated.
从折减后安全系数的极限状态中，计算出不同最大可能安全系数的临界变异系数和临界破坏概率。
The peculiarity of this wellbore stability model is to determine whether the wellbore rock is in the critical plastic state rather than elastic limit state.
依据井壁围岩是否达到临界塑性状态而不是弹性极限状态来判断井壁稳定性是气体钻井井壁稳定分析模型的特殊之处。
The peculiarity of this wellbore stability model is to determine whether the wellbore rock is in the critical plastic state rather than elastic limit state.
依据井壁围岩是否达到临界塑性状态而不是弹性极限状态来判断井壁稳定性是气体钻井井壁稳定分析模型的特殊之处。
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