Soil-water characteristic surface model of soil-rock mixture

作     者：WANG Kui HUI Ying ZHOU Chuan LI Xue RONG Yao WANG Kui;HUI Ying;ZHOU Chuan;LI Xue;RONG Yao

作者机构：Institute of Engineering Research Centre of Diagnosis Technology of Hydro-ConstructionChongqing Jiaotong UniversityChongqing 400074China Changjiang Fuling Waterway DivisionChongqing 408000China Institute of Jiangxi Transportation Institute Co.LtdNO.809 Jinsha AveXiaolan Economic Development ZoneNanchang 330200China 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2023年第20卷第9期

页      面：2756-2768页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081401[工学-岩土工程] 08[工学] 0814[工学-土木工程] 

基　　金：funded by the Science and Technology Research Program of Chongqing Municipal Education Commission(grant number KJZD-K202100705) the Talents Program Supply System of Chongqing(grant number cstc2022ycjhbgzxm0080) 

主　　题：Soil-rock mixture Soil-water characteristic Surface model Compaction effect 

摘      要：The relationship between the water content or saturation of unsaturated soils and its matrix suction is commonly described by the soilwater characteristic curve(SWCC).Currently,study on the SWCC model is focused on fine-grained soils like clay and silty soils,but the SWCC model for grinding soil-rock mixture(SRM)is less *** that the SRM is in a certain compaction state in the actual project,this study established a surface model with three variables of coupling compaction degree-substrate suction-moisture content based on the Cavalcante-Zornberg soil-water characteristic curve ***,the influence of each fitting parameter on the curve was *** the common SRM,the soil-water characteristic test was ***,the experimental measurements exhibit remarkable consistency with the mode *** analysis shows that the surface model intuitively describes the soil-water characteristics of grinding SRM,which can provide the SWCC of soils with bimodal pore characteristics under specific compaction ***,it can reflect the influence of compaction degrees on the SWCC of rock-soil mass and has a certain prediction *** SWCC of SRM with various soil-rock ratios have a double-step *** the increase in compaction degree,the curves as a whole tend toward decreasing mass moisture *** curve changes are mainly concentrated in the large pore section.