effective stop stress law 有效应力定律
The test results show that the porosity of sandstone decrease with the increasing effective stress at the fixed temperature level, following the law of negative exponent.
试验结果表明，在温度水平一定的条件下，砂岩的孔隙度随有效应力的增加而呈负指数规律减小；
Distributive law of atmospheric pressure and effective stress in depths is also given out.
并给出了大气压力及有效应力沿深度的分布规律。
The paper applies the nonlinear soil yield law of "principle of effective stress" based on porous medium to study influence of pressure distribution to adhesive force.
本文采用基于多孔介质下“有效应力原理”的土壤非线性屈服准则来研究压力分布对附着力的影响问题。
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