以多孔介质双重有效应力理论为基础，结合地质力学知识，建立了水平地应力的计算模型。
Based on the double effective stress theory and Geomechanics, this paper has built a horizontal crustal stress calculation model.
分析了软土地基中静压桩的挤土效应机理，依据圆孔扩张理论和有效应力原理，推导出塑性区影响范围、桩对土体的挤压应力、孔隙水压力估算公式等。
The radius of plastic area, the maximum compress stress caused by driving pile , and the pore water stress can be concluded by using the cavity expansion method and the effective stress theory.
根据有效应力原理，提出了确定地基承载力的理论依据，给出了合理的计算方法。
According to the principle of effective stress, this paper puts forward the theoretical basis for determining foundation's bearing capacity, presents the rational calculation method.
理论研究表明，低渗岩石由于存在微裂缝，净应力不等于有效应力。
Theoretical study shows the net stress is not equal to the effective stress because of the existing microcracks in the low permeability sandstone.
采用太沙基有效应力原理并结合观测得到的数据，对真空井点降水联合预压加固软土地基的机理及加固有效深度、有效应力的变化问题进行了理论分析。
Terzaghi, the mechanism of improving the soft ground by vacuum well-point dewatering and preloading and the change of effective stress and effective reinforcement depth were studied.
运用损伤力学以及断裂力学理论，定义了岩体损伤张量、有效应力张量、损伤应变等，建立了损伤演化方程，从而建立了多裂隙岩体的损伤断裂模型。
Using the theory of damage mechanics and fracture mechanics, the damage tensor, effective stress tensor and damage strain, etc. of rock mass are defined, propagation equation of damage is developed.
运用损伤力学以及断裂力学理论，定义了岩体损伤张量、有效应力张量、损伤应变等，建立了损伤演化方程，从而建立了多裂隙岩体的损伤断裂模型。
Using the theory of damage mechanics and fracture mechanics, the damage tensor, effective stress tensor and damage strain, etc. of rock mass are defined, propagation equation of damage is developed.
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