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Article

Simulation Study on Hydrological Process of Soil Cracks in Open-Pit Coal Mine Dump

by 1,*, 1, 2 and 3
1
School of Environmental Science and Engineering, Liaoning Technical University, Fuxin 123000, China
2
School of Geoscience and Surveying and Mapping Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
3
School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China
*
Author to whom correspondence should be addressed.
Academic Editors: Vito Ferro and Marco Franchini
Water 2022, 14(15), 2302; https://doi.org/10.3390/w14152302
Received: 20 April 2022 / Revised: 16 July 2022 / Accepted: 22 July 2022 / Published: 24 July 2022
(This article belongs to the Special Issue Rainfall and Water Flow-Induced Soil Erosion)
The dumping site is the most serious soil erosion area in an industrial and mining construction area. The development of cracks and water movement in the dumping site is the main factors that induce slope collapse. In this text, the influence of the crack width, rainfall intensity, and two simulation methods of hydrological processes are investigated under artificial rainfall conditions. The results show that the total runoff is affected by two factors, namely rainfall intensity and crack width, and the total runoff decreases with the increase in the crack width. The stable infiltration rate decreases with the increase in the crack width under the same rainfall intensities. When the rainfall intensity is greater than 90 mm/h, the contribution of leakage to the total infiltration is more than 50%. Under simulated rainfall conditions, the total runoff of the solid model was reduced by 5% to 13% compared with the equivalent model. Hence, the cumulative leakage of the solid model is 29% to 71% larger than that of the equivalent model under the same conditions. In this text, the transformation equations from the solid model of the dump site to the equivalent models of runoff, infiltration, and leakage are constructed, and then it can be corrected by the fitting equation. View Full-Text
Keywords: crack simulation; water leakage; soil infiltration; slope runoff; 3D printing crack simulation; water leakage; soil infiltration; slope runoff; 3D printing
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MDPI and ACS Style

Lv, G.; He, C.; Du, X.; Li, Y. Simulation Study on Hydrological Process of Soil Cracks in Open-Pit Coal Mine Dump. Water 2022, 14, 2302. https://doi.org/10.3390/w14152302

AMA Style

Lv G, He C, Du X, Li Y. Simulation Study on Hydrological Process of Soil Cracks in Open-Pit Coal Mine Dump. Water. 2022; 14(15):2302. https://doi.org/10.3390/w14152302

Chicago/Turabian Style

Lv, Gang, Cong He, Xinpeng Du, and Yexin Li. 2022. "Simulation Study on Hydrological Process of Soil Cracks in Open-Pit Coal Mine Dump" Water 14, no. 15: 2302. https://doi.org/10.3390/w14152302

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