摘要
岩质边坡的变形特征与稳定性的数值分析一直是行业内研究的重点。以ANSYS软件为平台进行建模并在坐标旋转后导入FLAC3D软件中以获取的清表后边坡模型,并考虑降雨及风化作用影响,基于Hoek-Brown屈服准则对现场岩土体的初始参数进行一定的强度折减,进而采用FLAC模拟分析计算得出依托工程边坡的安全系数为0. 95;且在边坡底部会产生20. 0 cm^20. 9 cm的位移量,在边坡上部区域的位移也在10. 0 cm^16. 0 cm。此外,在完成边坡清表工作的一个月后,该边坡顶部和坡脚部位也出现了不同程度开裂,局部塌空下挫现象,现场实际工况证明了该研究的合理性,相关研究方法可为类似工程提供借鉴。
Numerical analysis of deformation characteristics and stability of rock slopes has been the focus of research in the industry. In this paper,the ANSYS software is used as the platform for modeling and the coordinated rotation is imported into the FLAC3 D software to obtain the post-clearance slope model. Secondly,the effects of rainfall and weathering are taken into account.Based on the Hoek-Brown yield criterion,the initial parameters of the rock and soil on site after a certain strength reduction,FLAC simulation analysis was used to calculate the safety factor of the slope based on the project is 0. 95. At the bottom of the slope,a displacement of 20. 0 cm to 20. 9 cm will be generated. 10. 0 cm ~ 16. 0 cm. In addition,one month after finishing the slope clearing work,cracks occurred at the top and the foot of the slope to varying degrees,and the phenomenon of local collapse and setback occurred. The actual working conditions on site confirmed the rationality of this research and related research methods. Can provide reference for similar projects.
作者
温树鑫
Wen Shuxin(Sinohydro Corporation Engineering Bureau 15 Co.,Ltd.,Xi’an 710068,China)
出处
《山西建筑》
2020年第5期153-155,共3页
Shanxi Architecture
关键词
数值模拟
边坡
稳定性
裂缝
numerical simulation
slope
stability
cracks
