Analyzing failure mechanisms and predicting step-like displacement:Rainfall and RWL dynamics in lock-unlock landslides

作     者：Xuekun Xiang Haijia Wen Jiafeng Xiao Xiongfeng Wang Hongyue Yin Junhao Huang Xuekun Xiang;Haijia Wen;Jiafeng Xiao;Xiongfeng Wang;Hongyue Yin;Junhao Huang

作者机构：National Joint Engineering Research Center of Geohazards Prevention in the Reservoir AreasKey Laboratory of New Technology for Construction of Cities in Mountain AreaMinistry of Education ChongqingSchool of Civil EngineeringChongqing UniversityChongqing 400045China Technology Innovation Center of Geohazards Automatic MonitoringMinistry of Natural ResourcesChongqing Institute of Geology and Mineral ResourcesChongqing 401120China China Harbor Engineering Co.LtdBeijing 100027China The Key Laboratory of GIS Application ResearchChongqing Normal UniversityChongqing 401331China 

出 版 物：《Geoscience Frontiers》 (地学前缘(英文版))

年 卷 期：2025年第16卷第1期

页      面：155-174页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：support from National Key Research and Development Program of China(2023YFC3007203) 

主　　题：Lock-unlock TRIM test Geo-Studio Hybrid optimization Machine learning 

摘      要：Lock-unlock landslides have thick sliding zones that store a lot of *** makes them start quickly,happen suddenly,and have serious ***,it becomes urgent to study the deformation and failure mechanisms of such landslides and develop rational predictive *** the Jiuxianping landslide as an example,this study investigates the regularity of landslide displacement changes using multi-source data,focusing on the abrupt displacement patterns in the unlock ***,employing Transient Release and Inhalation Method tests combined with Geo-Studio’s SEEP/W and SIGMA/W modules for fluid-solid coupled simulation calculations,the evolution process of landslide failure mechanisms and deformation characteristics is analyzed and ***,utilizing data mining analysis of multi-source data,a hybrid optimized machine learning predictive model is established for model prediction *** study reveals that:(1)The rise in infiltration line elevates pore water pressure,affecting the stability of the sliding zone,leading to“unlock effectsand step-like displacement deformation;(2)Simulation shows that YY208 is closer to the actual situation,located at the far bank position,while YY210 is greatly influenced by the“buoyancy effect,resulting in a slowdown in deformation velocity;(3)After data preprocessing,overall actual displacement prediction performs better than simulation displacement prediction in terms of Mean Absolute Error,Mean Squared Error and Correlation Coefficient,but noise reduction processing can improve the periodic prediction effect of simulation displacement.