一个新的节理岩体力学分析模型及其应用

在节理岩体内建设地下空洞和隧道等岩土构筑物时，由于岩体变形的预测比较困难，设计时常只好采用经验的方法。本论文把节理岩体和锚杆加固后的节理岩体近似地作为等价连续体，提出了表现其力学特性的一个新的本构方程式。由于这一力学模型详细地反映了节理力学特性的影响和节理面同锚杆的相互作用，并可以在通常的固体力学范畴内进行处理，借助于有限元方法，有可能在工程实际中得到广泛的应用．

ANEW ANALYTICAL MODEL AND ITS APPLICATION-OF JOINTED ROCK MASS

In general it is obiged to use expcrienced method in the design of undergrounb cavcrns or tunnels ow-ing to hte uncertainty in the deformation prediction of the rock mass.In this paper a new constitutiveequation expressing the mechannical properties of jointed rock mass is presented based on the assumptionthat the jointed rock mass or the jointed rock mass atter reinforcement with rock bolting can be consideredapproximately an eguivalcnt continuous medium. Considering thet their mechanical model fully expressesthe effect of the mechanical properties of rock mass and the interaction of joint surface with rock boltingand it can be treated with conventional solid mechanics by using FEM,this methed is expected to be usedwidely in the engineering practic.