CAJ | 학술논문

对各向异性土体的强度条件研究建立一种新的表述方法.借鉴复合材料力学中矩阵转换的数学方法,将各向异性砂样的柔度矩阵(或刚度矩阵)转化为各向同性等效参考砂的柔度矩阵(或刚度矩阵),同时导出与其相当的应力状态的表达式,以使对各向异性岩土材料的分析可转换为对各向同性状态进行分析,由此可将以前基于各向同性假设的强度条件能够用于各向异性土体.将计算结果与已有实验结果作了比较,发现两者具有较好的一致性.
대각향이성토체적강도조건연구건립일충신적표술방법.차감복합재료역학중구진전환적수학방법,장각향이성사양적유도구진(혹강도구진)전화위각향동성등효삼고사적유도구진(혹강도구진),동시도출여기상당적응력상태적표체식,이사대각향이성암토재료적분석가전환위대각향동성상태진행분석,유차가장이전기우각향동성가설적강도조건능구용우각향이성토체.장계산결과여이유실험결과작료비교,발현량자구유교호적일치성.
A new method to express the strength condition of the anisotropic soil is propsed.Based on the method of matrix transformation used in the compound material mechanics,the anisotropic flexibility matrix (or stiffness matrix) of the anisotropic sand with a certain stress state is transformed to be an isotopic one of a certain isotropic reference material with the corresponding stress state,and a corresponding stress matrix is obtained simultaneously.By this step,the anisotropic soil material is transformed to the isotropic reference material.Then.the isotopic strength theory is applied on this isotropic reference material.Finally, the isotropy strength theory is expressed by the original stress matrix of the anisotropic soil.The calculation results are quite matched with the experiment results.