CAJ | 학술논문

目前对于节理岩体各向异性变形参数的解析方法研究不多。假设岩块为各向同性线弹性体，结构面的应力与位移之间满足线性刚度关系，建立多组贯穿节理岩体的正交各向异性变形参数计算模型，相关计算公式简单实用。进一步的研究结果表明：对于贯穿节理岩体，其体积变形具有正交各向异性变形特性，而剪切变形并不具有明显的正交各向异性。最后通过3DEC数值验证与辅助研究，相关数值成果与理论计算相差较小，说明该理论模型对于岩体各向异性变形与稳定性评价有一定的参考价值。
목전대우절리암체각향이성변형삼수적해석방법연구불다。가설암괴위각향동성선탄성체，결구면적응력여위이지간만족선성강도관계，건립다조관천절리암체적정교각향이성변형삼수계산모형，상관계산공식간단실용。진일보적연구결과표명：대우관천절리암체，기체적변형구유정교각향이성변형특성，이전절변형병불구유명현적정교각향이성。최후통과3DEC수치험증여보조연구，상관수치성과여이론계산상차교소，설명해이론모형대우암체각향이성변형여은정성평개유일정적삼고개치。
Natural rock mass usually contains multiple parallel and persistent crack sets. It is important to study the deformation characteristics of rock mass with parallel and persistent cracks in engineering design and stability analysis of surrounding rock mass. On the assumption that rock is isotropic linear elastic body and the stress-displacement relation of crack is linear stiffness relation , the computational model of deformation parameters of rock mass with multiple persistent crack sets is presented by using orthogonal anisotropy elastic theory. The further research shows that the volume deformation of rock mass exhibits orthogonal anisotropy characteristics but the shear deformation does not. Finally,numerical verification of the computational model is carried out by 3DEC software,and the results are in accord with the calculated values. So the model has some reference value in predicting deformation and stability of rock mass.