On the basis of analyzing the failure process and considering the influence of stress spreading, the method determining ultimate bearing capacity of double layer rock foundation is put forward.
针对上硬下软近水平双层岩基的破坏过程，考虑软弱下伏岩层对应力分布的扩散效应，提出双层岩基极限承载力的计算方法。
In situ stress is ultimate cause of failure of all underground or open-air geotechnical engineering.
地应力也称为原岩应力，它是引起各种地下或露天岩土工程变形与破坏的根本力源。
Furthermore, the ultimate load and the failure location of the section vary with the stress-strain relations and initial stress differences of the materials on the section.
承载力和截面破坏控制点因截面上材料的本构关系的变化和应力史差而发生改变。
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