小主应力 meaning in English

minor principal stress

Secondly , on the basis of mechanic properties analysis , applying the stress - strain model of lateral unloading which can reflect the decrease change of principal stress state in the excavation progress of slope , dividing excavations slope into cutting slope and sharpen slope , numerical simulation is respectively carried through in order to analyze the impact of changing of slope type , slope height and stratum water content on the slope stability
其次，在试验研究的基础上，应用能够反映黄土挖方边坡大、小主应力减小变化的围压卸荷剪切应力应变模型，将挖方边坡区分为路堑边坡和削坡，通过数值模拟开挖过程分析了坡高、坡型、坡比及地层含水量变化对边坡稳定性的影响。