DataVXApplied SciencesPaper
journal article·2024-07-05Open access

Prediction of the Dangerous Range of Dumps Based on a Dynamic Process

Dexin Li, Chengchao Guo, Xinpo Sun, Jing Wang

Applied Sciences· Volume 14· Issue 13
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Source abstract

Abstract

A dump is a loose accumulation of solid waste from mining operations that easily leads to disasters such as landslides and debris flows. Taking a dump in the Panzhihua region of China as an example, based on the MPM and SPH meshless methods, the dynamic calculation of the instability process of the spoil slope was carried out according to the realistic three-dimensional calculation model of the generated terrain. Firstly, the strain and displacement of the dump under normal conditions and heavy rainfall conditions were simulated by the MPM material point method. The maximum spatial displacement of the dump under heavy rainfall conditions reached up to 386 m. Then, the motion and morphology of the accumulation of the dump under ordinary working conditions and heavy rainfall conditions were analyzed using the smooth particle hydrodynamics (SPH) method. Under heavy rainfall conditions, the maximum horizontal displacement of the dump was approximately 394 m. The research results are conducive to the risk assessment of the spoil slope and provide theoretical support for the calculation of the range of potential threats from the dump.
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Research context

OpenAlex topics: Fluid Dynamics Simulations and Interactions · Landslides and related hazards · Geotechnical Engineering and Analysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Hydraulic and Civil Engineering, Zhengzhou University, Zhengzhou 450001, China

Civil Engineering and Transportation Engineering, Yellow River Conservancy Technical Institute, Kaifeng 475004, China

School of Civil Engineering, Sun Yat-sen University, Guangzhou 510275, China

College of Civil Engineering, Sichuan University of Science & Engineering, Zigong 643000, China

Yellow River Water Conservancy Research Institute, Zhengzhou 450003, China

Funding

the National Key Research and Development Program of China · the Scientific research project of Chongqing Planning and Natural Resources Bureau · the Key Research and Development Project of Henan Province · Research on the teaching reform of vocational education in Henan Province · The National Nature Science Foundation of China

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