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地质构造体和岩体是一种岩性和结构高度变化的非连续而且非均一的介质,在压力(包括岩体中的间隙水压力)和温度的作用下所产生的变形和破坏现象,不仅为非线性关系,并随空间和时间而变化。对某一点而言,这种关系会由于作用力的大小和时间的长短,由弹性过渡到塑性或粘性状态。对整体而言,在同一时间内,却会在不同的部位出现不同的应力状态和变形的程度。对于以上所谈的这种因时因地而异的力学现象,再加上边界条件的任意性和复杂性,
Geological structures and rock mass are discontinuous and inhomogeneous media with varying lithology and structural height. The phenomena of deformation and destruction caused by pressure (including interstitial water pressure in rock mass) and temperature, not only Non-linear relationship, and changes with space and time. At some point, this relationship will be due to the size of the force and the length of time, the transition from elastic to plastic or viscous state. As a whole, at different times, different stress states and degrees of deformation occur at the same time. With regard to the time-dependent mechanics of phenomena as mentioned above, coupled with the arbitrariness and complexity of the boundary conditions,