Study on prevention and control mechanism of runoff water hazard in thick coal seam mining in valley terrain

Zhang, Yunfeng; Qian, Chenlong; Wang, Xufeng; Chen, Xuyang; Chang, Zechao; Wang, Jiyao; Niu, Zhijun

doi:10.3389/feart.2023.1140491

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…Starting from the spatial relationship between the working face and the slope in a gully area. Zhang et al (2023) conducted a systematic analysis of the influences of slope angle, slope height, coal seam mining height, and coal seam burial depth, providing a theoretical basis for disaster prevention and control.…”

Section: Introductionmentioning

confidence: 99%

Simulation study on surface deformation of shallow buried coal seam mining in a gully area

Wang,

Cai,

Zhang

et al. 2023

Front. Earth Sci.

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Coal mining subsidence leads to frequent surface ecological and environmental problems. Due to the unique topographic conditions within gully areas, the deformation and damage characteristics, along with the evolution laws of the surface, have been difficult to analyze. To explore the surface movement and deformation law of shallow-buried coal seam mining in a gully area, this study designed a three-dimensional similar-material simulation test simulating the complete movement and deformation of the ground surface under real terrain conditions and proposed a complete data acquisition and processing scheme. Combined with the numerical simulation analysis, we utilized this scheme to analyze the dynamic influence law of coal seam mining in a gully area on the distribution of ground surface stress and displacement as well as on the dynamic characteristics of the ground surface damage. The results show that the existence of gully topography affects the stress distribution of the ground surface and the raw rock of the coal seams underneath and that there exists a stress concentration in the gully area of the ground surface. Furthermore, the mining activities of the coal seams lead to an increase in the degree of stress concentration in the gully area of the ground surface, and the slopes enter into the process of energy accumulation and sudden release, which makes the region prone to the occurrence of geological disasters such as landslides and collapses. In addition, the surface movement and deformation in the gully area are more intense, exceeding the plain area, and the surface movement is affected by the spatial location relationship between the mining area and the slope body, causing the center of the mining area to show obvious eccentricity characteristics. The results of this study provide a reference basis for the safe mining of coal mines in gully topography.

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Section: Introductionmentioning

confidence: 99%

Simulation study on surface deformation of shallow buried coal seam mining in a gully area

Wang,

Cai,

Zhang

et al. 2023

Front. Earth Sci.

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Satisfaction evaluation of ecological restoration in abandoned mines based on the residents’ perception: a case study in Ganzhou, Jiangxi

Lin,

Xu,

Zhou

et al. 2024

Sci Rep

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The ecological restoration of historical abandoned mines has emerged as a prominent issue that has been of great concern to the Chinese government and academia in recent years. In order to enhance the systematic and comprehensive evaluation of ecological restoration efforts in abandoned mines, this study explores and researches a new perspective, i.e. the subjective perception perspective based on residents’ satisfaction, and applies it to the ecological restoration performance evaluation of abandoned mines in Ganzhou, which is the most representative city of mineral resources in the southern hilly and mountainous area. An ecological restoration performance evaluation index system has been developed, encompassing three criteria layers: ecology, economy, and society, as well as twenty indicator layers. In this paper, a combination of Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) and importance-performance analysis (IPA) method is proposed to empirically analyze the ecological restoration performance of abandoned mines in the study area. The study revealed that the three counties predominantly prioritized ecological benefits, whereas the satisfaction of residents with social and economic benefits was lacking. Based on the findings, corresponding countermeasures were proposed, offering a fresh perspective and theoretical framework for assessing ecological restoration in abandoned mines. Supplementary Information The online version contains supplementary material available at 10.1038/s41598-024-78737-0.

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Study on prevention and control mechanism of runoff water hazard in thick coal seam mining in valley terrain

Cited by 2 publications

References 22 publications

Simulation study on surface deformation of shallow buried coal seam mining in a gully area

Simulation study on surface deformation of shallow buried coal seam mining in a gully area

Satisfaction evaluation of ecological restoration in abandoned mines based on the residents’ perception: a case study in Ganzhou, Jiangxi

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