基于不平衡推力法的特大型滑坡群稳定性分析和治理工程研究 以贵州印江县核桃坪滑坡群为例

摘要

The Hetaoping landslides in Yingjiang county are classed as natural super-large-scale landslides. Through analyzing the engineering geology and hydrogeological conditions, soil tests and back calculations, we expound the deformation behavior and its causes. Using the imbalance thrust force method, and a broken line calculation model to evaluate the stability, we demonstrate that it is steady when in the native state, but unstable during rainstorms. Finaly, we propose the adoption of drainage ditches, slide-resistant piles, and retaining wals for reinforcement.%印江县杉树乡核桃坪滑坡群为自然成因的特大型滑坡，通过分析滑坡群工程地质及水文地质条件，结合室内土工试验和反演计算，阐明了滑坡群的变形特征及成因，并运用不平衡推力法和折线计算模型对滑坡群的稳定性进行了分析与评价，得出滑坡群在天然状态下均处于稳定状态，在暴雨工况下均处于不稳定状态，最后提出了采取搬迁工程、截排水沟、削方修坡、抗滑桩板墙、挡土墙的综合治理措施。