Elasto brittle damage model for rockmass based on field tests in Laxiwa arch dam site

In the paper, a elasto brittle damage model for rock mass in Laxiwa arch dam is presented. It is based on continuum media theory, and established on crack coalescence and elastic damage coupled with crack propagations in strain space. Based on this model, mechanical parameters and constitutive relations for elasto brittle behaviours were obtained from in situ tests in the dam site. The process of calculation is given in the paper.