基于FLAC^(3D)分析雅砻江某边坡的稳定性  

Analysis on Slope Stability of Yalong Jiang Based on FLAC3D

作　　者：徐媛媛[1] 陈书文[2] 傅崇[3] 

机构地区：[1]河海大学地球科学与工程学院,南京市210098 [2]中水北方勘测设计研究有限责任公司,天津市300222 [3]福建省建筑科学研究院,福州市350000

出　　处：《勘察科学技术》2013年第2期31-35,共5页Site Investigation Science and Technology

摘　　要：该文结合雅砻江某边坡现场调查的工程地质资料,分析其破坏机制及破坏形式,利用数值计算方法对崩塌体进行稳定性评价。数值计算依赖FLAC3D软件进行计算分析,首先在ANSYS中建立边坡的网格模型,再将模型导入FLAC3D进行计算,得出了崩塌体稳定性的相关结论:蓄水对于崩塌体的稳定影响较小,安全系数较自然状态下降低幅度也较低,而地震工况对于边坡的稳定性影响非常显著,边坡有可能出现整体性的破坏。Combined with the engineering geological data in field investigation of a slope in Yalong Jiang, the failure mechanism and form is studied in this paper. Landslide has been conducted for numeri- cal simulation by using the software FLAC3D. Firstly, the grid model is built by the software ANSYS, sec- ondly, the grid model is imported into FLAC3D, finally, the related conclusions after calculating are ob- tained that , it has little effect on the stability of landslide in the water-storing state, and the safety factors decrease lower than that in the natural state. However, the stability of slope would further significant de- teriorate in the condition of earthquake, and the slope may be destroyed entirely.

关 键 词：FLAC3D 有限差分法 边坡稳定性 

分 类 号：TV223[水利工程—水工结构工程]