Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit Mine

This study presents different land saving and loss reducing schemes. Comprehensively compare the economic benefits of the schemes. It is shown that the optimal scheme can recover tons of coal resources on the south slope, creating significant economic benefits. Numerical simulation was utilized to a...

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Main Authors: Tongsuo Guo, Wei Zhou, Zhaolin Li, Chuanwei Zhang, Qingxiang Cai, Ya Tian, Huairui Qin, Fuming Liu, Izhar Mithal Jiskani, Dongxu Zhang
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2021/6620235
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author Tongsuo Guo
Wei Zhou
Zhaolin Li
Chuanwei Zhang
Qingxiang Cai
Ya Tian
Huairui Qin
Fuming Liu
Izhar Mithal Jiskani
Dongxu Zhang
author_facet Tongsuo Guo
Wei Zhou
Zhaolin Li
Chuanwei Zhang
Qingxiang Cai
Ya Tian
Huairui Qin
Fuming Liu
Izhar Mithal Jiskani
Dongxu Zhang
author_sort Tongsuo Guo
collection DOAJ
description This study presents different land saving and loss reducing schemes. Comprehensively compare the economic benefits of the schemes. It is shown that the optimal scheme can recover tons of coal resources on the south slope, creating significant economic benefits. Numerical simulation was utilized to analyze the changes of slope stability, deformation, and shear strain increment in the process of land saving and loss reducing. Results found that the slope stability decreases rapidly, and the toe of the slope has to be internally discharged in time to compress the slope. Timely follow-up of in-slope rows can improve slope stability. The position of the slope shear exit changes with the increase of the distance of the inner row, and its stability increases gradually. When the distance of the lower inner row exceeds 120 m, the increase of the internal row distance has little influence on the slope stability. When the inner distance exceeds 60 m in the process of internal dumping of upper platform, the position of potential sliding plane gradually changes from the lower dump to the upper and lower dump with the increase of inner dumping distance. It shows that the stability of the dump will be damaged if the upper dump continues to be discharged. Therefore, the distance between the upper and lower dump sites is more important than 60 m. The stability of the south slope is good in the process of mining and internal drainage, and the overall stability of the south slope is controllable, based on slope radar monitoring.
format Article
id doaj-art-978f1add562341a5ac0aa3ad593b37bb
institution Kabale University
issn 1468-8115
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language English
publishDate 2021-01-01
publisher Wiley
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series Geofluids
spelling doaj-art-978f1add562341a5ac0aa3ad593b37bb2025-02-03T06:06:40ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/66202356620235Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit MineTongsuo Guo0Wei Zhou1Zhaolin Li2Chuanwei Zhang3Qingxiang Cai4Ya Tian5Huairui Qin6Fuming Liu7Izhar Mithal Jiskani8Dongxu Zhang9High-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaHigh-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaHigh-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaHigh-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaHigh-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaHigh-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaHigh-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaHigh-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaHigh-Tech Research Center for Open Pit Mines, China University of Mining and Technology, Xuzhou, Jiangsu 221116, ChinaChina Coal Technology Engineering Group Shenyang Research Institute, Fushun, 113122 Liaoning, ChinaThis study presents different land saving and loss reducing schemes. Comprehensively compare the economic benefits of the schemes. It is shown that the optimal scheme can recover tons of coal resources on the south slope, creating significant economic benefits. Numerical simulation was utilized to analyze the changes of slope stability, deformation, and shear strain increment in the process of land saving and loss reducing. Results found that the slope stability decreases rapidly, and the toe of the slope has to be internally discharged in time to compress the slope. Timely follow-up of in-slope rows can improve slope stability. The position of the slope shear exit changes with the increase of the distance of the inner row, and its stability increases gradually. When the distance of the lower inner row exceeds 120 m, the increase of the internal row distance has little influence on the slope stability. When the inner distance exceeds 60 m in the process of internal dumping of upper platform, the position of potential sliding plane gradually changes from the lower dump to the upper and lower dump with the increase of inner dumping distance. It shows that the stability of the dump will be damaged if the upper dump continues to be discharged. Therefore, the distance between the upper and lower dump sites is more important than 60 m. The stability of the south slope is good in the process of mining and internal drainage, and the overall stability of the south slope is controllable, based on slope radar monitoring.http://dx.doi.org/10.1155/2021/6620235
spellingShingle Tongsuo Guo
Wei Zhou
Zhaolin Li
Chuanwei Zhang
Qingxiang Cai
Ya Tian
Huairui Qin
Fuming Liu
Izhar Mithal Jiskani
Dongxu Zhang
Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit Mine
Geofluids
title Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit Mine
title_full Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit Mine
title_fullStr Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit Mine
title_full_unstemmed Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit Mine
title_short Optimization of Land Saving and Loss Reducing and Slope Stability Variation Patterns in Open-Pit Mine
title_sort optimization of land saving and loss reducing and slope stability variation patterns in open pit mine
url http://dx.doi.org/10.1155/2021/6620235
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