Development of a Model Material Suitable for Reservoir Landslide Model Tests
作者机构：Faculty of Engineering China University of Geosciences Badong National Observation and Research Station of Geohazards China University of Geosciences
出 版 物：《Journal of Earth Science》 (地球科学学刊)
年 卷 期：2023年
核心收录：
学科分类：081504[工学-水利水电工程] 081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程]
基 金：supported by the Major Program of the National Natural Science Foundation of China (No. 42090054) the National Key Scientific Instrument and Equipment Development Projects of China (No. 41827808) the Major Program of the National Natural Science Foundation of China (No. 42090055) the National Science Foundation of China (No. 42107194)
摘 要：In the physical model test of landslides, the selection of analogous materials is the key,anditisdifficulttoconsiderthesimilarityofmechanicalpropertiesandseepageperformanceatthe same time. To develop a model material suitable for analysing the deformation and failure of reservoir landslides, based on the existing research foundation of analogous materials, 5 materials and 5 physicalmechanical parameters were selected to design an orthogonal test. The factor sensitivity of each component ratio and its influence on the physical-mechanical indices were studied by range analysis and stepwiseregressionanalysis,***,themodelmaterial was developed, and a model test was carried out considering Huangtupo as the prototype *** results showed that (1) the model material composed of sand, barite powder, glass beads, clay, and bentonite had a wide distribution of physical-mechanical parameters, which could be applied to model testsunderdifferentconditions;(2)thephysical-mechanicalparametersofanalogousmaterials matched the application prototype; and (3) the mechanical properties and seepage performance of the model material sample met the requirements of reservoir landslide model tests, which could be used to simulate landslide evolution and analyse the deformation process.
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