[PDF][PDF] 高速远程滑坡颗粒流研究进展

李坤, 程谦恭, 林棋文, 王玉峰, 宋章 - 地球科学, 2022 - researchgate.net
颗粒流是高速远程滑坡物质演化过程的一个重要阶段, 也是从细观角度揭示其超常运动特性的
重要手段. 颗粒流所采用的主要研究方法以及取得的重要理论成果, 可以为高速远程滑坡动力学 …

Influence of ammonium sulfate leaching agent on engineering properties of weathered crust elution-deposited rare earth ore

H Wang, X Wang, Y Wang, D Wang, K Hu, W Zhong… - Acta Geotechnica, 2024 - Springer
Rare earth resources in the weathered crust elution-deposited rare earth ore (WCEDRE-ore)
are mainly recovered by in situ leaching process. A new understanding of the engineering …

[HTML][HTML] 颗粒物质力学及其在工程地质领域中的应用初探

郑虎, 牛文清, 毛无卫, 李丽慧, 汪发武, 黄雨 - 工程地质学报, 2021 - dzkx.org
由碎散物质组成的地质体失稳流滑大变形所致的地质灾害严重影响国民经济发展和人民生命
财产安全, 绝大多数造成此类地质灾害的对象属于颗粒物质, 而地质灾害与颗粒物质力学的交叉 …

Weakening of mechanical parameters of ion-absorbed rare-earth ores subjected to leaching

H Wang, X Wang, G Li, H Ye, C Zhang… - … and Geophysics for Geo …, 2023 - Springer
Ion-adsorbed rare-earth ores are mined using in-situ leaching, and their mechanical
properties significantly affect the efficient and safe recovery of rare earth elements. However …

Effect of gravity on granular material flows

H Zheng, W Niu, W Mao, Y Huang - Computers and Geotechnics, 2024 - Elsevier
Most geohazards and industrial processes are essentially gravity-driven dense granular
flows. Deep understanding of the effect of gravity on granular flow is of crucial importance in …

Evolution law and transformation mechanism of force chains in the flow of photoelastic particles under a flexible barrier

E Long, Q Chen, J Liu - Powder Technology, 2023 - Elsevier
The essence of large deformation flow in loose geological bodies lies in the breaking and
rebuilding of force chains at the microscopic scale. Therefore, it is crucial to investigate force …

Advances on the acoustic emission testing for monitoring of granular soils

W Mao, L Hei, Y Yang - Measurement, 2021 - Elsevier
The application of the acoustic emission (AE) method for granular media has been
considered to be challenging and remains limited. Nevertheless, recent successful …

Automatic extraction method of force chain information and its application in the flow photoelastic experiment of granular matter

Q Chen, E Long, W Niu, J Liu, W Fan, H Li - Particuology, 2023 - Elsevier
The force chain is the core of the multi-scale analysis of granular matter. Accurately
extracting the force chain information among particles is of great significance to the study of …

A comparative study of the seismic performances and failure mechanisms of slopes using dynamic centrifuge modeling

H Cheng, J Zhou, Z Chen, Y Huang - Journal of Earth Science, 2021 - Springer
In this study, dynamic centrifuge model tests were performed for sand slopes under different
earthquake ground motions and slope angle to characterize the seismic performance of …

Shape-induced clusters of ellipsoids during triaxial compression: A multiscale analysis using LS-DEM

H Jiang, R Kawamoto, Y Li - Computers and Geotechnics, 2024 - Elsevier
In this work, we numerically investigate the quasi-static shear behavior of ellipsoids under
triaxial compression using the level set discrete element method (LS-DEM). Assemblies …