Study on shaping slope stability of dump in eastern grassland open-pit mine

The dumps in the open-pit mining area in the eastern grassland are prone to landslides due to the fragile ecological environment, so it is inevitable to reshape the dump slopes. In order to explore a more scientific method for slope shaping of open-pit mine dump, slope stability analysis were used t...

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Main Authors: Xiaoli Guo, Jiancheng Yan, Xueliang Li, Xin Wen, Xingli Li
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/54/e3sconf_icaeer2020_04043.pdf
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author Xiaoli Guo
Jiancheng Yan
Xueliang Li
Xin Wen
Xingli Li
author_facet Xiaoli Guo
Jiancheng Yan
Xueliang Li
Xin Wen
Xingli Li
author_sort Xiaoli Guo
collection DOAJ
description The dumps in the open-pit mining area in the eastern grassland are prone to landslides due to the fragile ecological environment, so it is inevitable to reshape the dump slopes. In order to explore a more scientific method for slope shaping of open-pit mine dump, slope stability analysis were used to compare effect of three types of slope-type (wave-shaped, slope-shaped and step-shaped slope shaping method)in outside dumping site of Baori Hiller open-pit mine. The results show that the slope stability is negatively correlated with the slope angle, and the stability of different shaping slopes is realized as wave-shaped slope (F=2.711)> Slope-shaped slope(F=2.513)>Step-shaped slope(F=1.047), in which the wave type and slope type are all within the safe range, but the step type slope is unstable; in consideration of cost, stability and erosion resistance, it is better to set the slope angle of the dump to 15°.The wave-shaped shaping method of the natural dumping of the excavation field outside the Baori Hiller open-pit mine has the best effect and is worth promoting.
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spelling doaj.art-e51424c0a19c475dbbca7e5a34ff62912022-12-21T22:00:08ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011940404310.1051/e3sconf/202019404043e3sconf_icaeer2020_04043Study on shaping slope stability of dump in eastern grassland open-pit mineXiaoli GuoJiancheng YanXueliang Li0Xin WenXingli Li1China Coal Science and Technology Ecological Environment Technology Co.,Ltd.Tangshan Branch of China Coal Science and Technology Ecological Environment Technology Co.,Ltd.,The dumps in the open-pit mining area in the eastern grassland are prone to landslides due to the fragile ecological environment, so it is inevitable to reshape the dump slopes. In order to explore a more scientific method for slope shaping of open-pit mine dump, slope stability analysis were used to compare effect of three types of slope-type (wave-shaped, slope-shaped and step-shaped slope shaping method)in outside dumping site of Baori Hiller open-pit mine. The results show that the slope stability is negatively correlated with the slope angle, and the stability of different shaping slopes is realized as wave-shaped slope (F=2.711)> Slope-shaped slope(F=2.513)>Step-shaped slope(F=1.047), in which the wave type and slope type are all within the safe range, but the step type slope is unstable; in consideration of cost, stability and erosion resistance, it is better to set the slope angle of the dump to 15°.The wave-shaped shaping method of the natural dumping of the excavation field outside the Baori Hiller open-pit mine has the best effect and is worth promoting.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/54/e3sconf_icaeer2020_04043.pdf
spellingShingle Xiaoli Guo
Jiancheng Yan
Xueliang Li
Xin Wen
Xingli Li
Study on shaping slope stability of dump in eastern grassland open-pit mine
E3S Web of Conferences
title Study on shaping slope stability of dump in eastern grassland open-pit mine
title_full Study on shaping slope stability of dump in eastern grassland open-pit mine
title_fullStr Study on shaping slope stability of dump in eastern grassland open-pit mine
title_full_unstemmed Study on shaping slope stability of dump in eastern grassland open-pit mine
title_short Study on shaping slope stability of dump in eastern grassland open-pit mine
title_sort study on shaping slope stability of dump in eastern grassland open pit mine
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/54/e3sconf_icaeer2020_04043.pdf
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AT xueliangli studyonshapingslopestabilityofdumpineasterngrasslandopenpitmine
AT xinwen studyonshapingslopestabilityofdumpineasterngrasslandopenpitmine
AT xinglili studyonshapingslopestabilityofdumpineasterngrasslandopenpitmine