基于FLAC3D的澜沧江古水水电站争岗滑坡堆积体稳定性分析

结合澜沧江古水水电站争岗滑坡堆积体的工程地质条件,建立了FLAC3D滑坡模型。通过选择合理的参数和剖面,模拟得出该滑坡堆积体的塑性区分布特征、剪应变增量集中带的发展趋势以及位移等值线云图,并对其进行了系统全面的分析。结果表明:在天然状态下,该滑坡基本处于稳定状态,但其中后缘变形破坏较为严重。建议采取措施进行防治,确保安全。

Stability Analysis of Zhenggang Landslide Deposit Talus at Gushui Hydropower Station on Lancang River Based on FLAC3D

Depending on engineering geological conditions of Zhenggang landslide deposit talus at Gushui Hydropower Station on Lancang River, the FLAC3D landslide model was established.By selecting reasonable parameters and sections, the distribution characteristics of plastic zone, development trend of shear strain increment concentration belt, and displacement is oline chart of landslide deposit talus were simulated and analyzed systematically and comprehensively.The results show that in natural state, the landslide is basically stable, but the trailing edge deformation is serious, so itis suggested that the preventive measures shall be adopted to ensure safety.