Based on the unsaturated soil strength theory and limit equilibrium method, this paper obtains the calculating formulae for the roadbed stability under the effect of seepage force of rain.
采用非饱和土强度理论和极限平衡法，得出考虑降雨入渗渗流力作用下的路基稳定性计算公式。
The compressibility and the theory of Mohr-Coulomb Intensity limit equilibrium of soil, provides the basis for the self-rescue principle of rodless drilling unit.
土体的可压缩性和土的摩尔·库伦强度极限平衡理论为无钻杆钻具自救机理提供了理论依据。
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