this thesis introduced the basic theory of element-free method, and how to trace the crack propagation of rock mass, then simulated the crack propagation of test sample without outside hydraulic pressure, and compared the calculated result with the fact status 本文介紹了無單元計(jì)算方法基本原理及如何應(yīng)用無單元法對(duì)巖體裂紋擴(kuò)展進(jìn)行計(jì)算追蹤,然后應(yīng)用無單元法模擬試件在無圍壓條件下水力劈裂裂紋擴(kuò)展的過程,并與實(shí)際情況作了對(duì)比分析。