摘要
在FLAC-3D软件平台上,开发出岩石破裂过程的渗流-损伤耦合分析程序,对渗流-损伤耦合作用下岩石的裂纹萌生、扩展过程进行模拟研究。分析了在孔隙水压力作用下,含原生裂隙和弱化单元的非均质试件在单轴、三轴加载下的破坏过程,并与非渗流条件下试件在单轴、三轴压缩下的破坏过程相对比,通过动态显示损伤状态、渗流场,并分析应力应变关系、位移图等,对渗流影响下裂隙岩体的损伤和渐进破裂过程进行了研究。
Based on FLAC- 3D, the seepage-damage coupling with analytical procedures is developed in this paper. With this program the crack initiation, expansion and evolution can be simulated and analyzed. The failure process of nonhomogeneous specimen with existing fractures under pore water pressure is simulated. The damage state, displacement field, stress field and seepage field graphics can be displayed dynamically. This method is helpful in the study of fractured rock mass damage process.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2015年第1期53-59,共7页
Hydrogeology & Engineering Geology
基金
国家自然科学基金项目(41072234
51279095)
山东省自然科学基金项目(ZR2009AZ001)
关键词
裂隙岩体
渗流-损伤耦合
随机弱化
三轴加载
渐进破裂
fractured rock masses
coupling of seepage and damage
numerical simulation
heterogeneity
triaxial compression
progressive failure
