Slope Stability Analysis of a Coal Gangue Dump in Guizhou Province
Journal: Architecture Engineering and Science DOI: 10.32629/aes.v6i3.4233
Abstract
Coal mining in China generates a large amount of coal gangue, making its disposal and stability assessment critically important. This study focuses on the Muzhushan coal gangue dump in Panjiazhuang Town, Xingren City, and establishes an “air–space–ground” integrated monitoring network to obtain key parameters. For the coal gangue slope, a stability evaluation model was developed by combining laboratory testing with numerical simulation, and multi-physical field coupling calculations and multi-condition comparative verifications were carried out on the FLAC3D platform. The results indicate that the structure remains stable under self-weight conditions; however, heavy rainfall reduces the local safety margin by 47.6%, while seismic loading does not induce instability. The findings verify the applicability of the proposed methodology, provide a quantitative basis for graded management of coal gangue dump stability, and hold significant implications for the development of coal gangue waste disposal and ecological restoration.
Keywords
coal gangue; solid waste disposal; stability evaluation; numerical simulation
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