摘要
膨胀土的胀缩、裂隙等特性,对边坡稳定性具有很大的影响.针对某工程边坡实例,从膨胀性软岩的裂隙性、软化性两方面分析了滑坡形成原因,并采用FLAC/SLOP对边坡在天然状态和饱和状态下的最大剪应变率进行模拟分析.分析结果表明,边坡在饱和条件下,最大剪应变明显增加,边坡安全系数由1.01降到0.84,进一步说明了弱膨胀性软岩对边坡稳定性的影响.
The expansion shrinkage and fracture of expansive soil have great influence on the stability of the slope.Based on the engineering slope instances,the reasons of formation of the landslide were analyzed from two aspects ofthe fracture and softening of the expansive soft rock. FLAC/SLOP was used to simulate the maximum shear strain ofthe slope under natural state and saturation condition. The results show that the maximum shear strain of the slopeobviously increased under saturation condition. The safety factor reduced from 1.01 to 0.84,and it is further explainedthat the weak expansive soft rock has the effect on the stability of the slope.
出处
《河南科学》
2015年第11期1990-1993,共4页
Henan Science
基金
云南省教育厅重点项目(KKJD201521004)
