IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Monitoring and Analysis of Stress and Deformation Features of Boundary Part of Backfill in Metal Mine
Lu, Rong1,2; Ma, Fengshan1; Zhao, Jie2; Wang, Jianbo2; Li, Guilin2; Dai, Bing3
2020-01-02
Source PublicationSUSTAINABILITY
Volume12Issue:2Pages:14
AbstractThe backfill mining method is widely used in metal mines. A large and thick backfill body has formed in the No.2 zone of Jinchuan Nickel Mine, and its stability is critical for mining safety. In order to study the mechanical behavior of the boundary part of backfill, ground subsidence monitoring, underground filed monitoring of displacement, and stress and numerical simulation were conducted to analyze stress distribution and deformation of backfill. According to underground monitoring, the bed separated displacement has the consistent trend with ground subsidence in the mine area. Based underground stress monitoring, both horizontal and vertical stress of the internal part of backfill is less than the stress boundary part of the backfill. The characteristic of backfill boundary outline is a step-profile. Contact interaction between the surrounding rock and backfill led to complex stress distribution. According to stress monitoring of the boundary points in a numerical model, the multi-peak value of stress development is the major feature of the boundary part of backfill. The multi-peak stress behavior of the boundary part of backfill was influenced by mining depth. The boundary part of backfill deformation influenced the local stability of mining. This article provided a scientific basis for strength design and the support choice of a metal mine by the method of backfill mining.
Keywordbackfill mining separated displacement monitoring step-profile boundary multi-peak stress behavior
DOI10.3390/su12020733
WOS KeywordCEMENTED PASTE BACKFILL ; GROUND MOVEMENT ; NICKEL MINE ; MECHANISMS
Language英语
Funding Project[41831293] ; [41772341] ; [41877274]
WOS Research AreaScience & Technology - Other Topics ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS IDWOS:000516824600291
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95523
Collection页岩气与地质工程院重点实验室
Corresponding AuthorMa, Fengshan
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Shandong Gold Min Technol Co Ltd, Deep Min Lab Subsidiary, Jinan 250101, Peoples R China
3.Univ South China, Nucl Resource Engn Coll, Hengyang 421001, Peoples R China
First Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lu, Rong,Ma, Fengshan,Zhao, Jie,et al. Monitoring and Analysis of Stress and Deformation Features of Boundary Part of Backfill in Metal Mine[J]. SUSTAINABILITY,2020,12(2):14.
APA Lu, Rong,Ma, Fengshan,Zhao, Jie,Wang, Jianbo,Li, Guilin,&Dai, Bing.(2020).Monitoring and Analysis of Stress and Deformation Features of Boundary Part of Backfill in Metal Mine.SUSTAINABILITY,12(2),14.
MLA Lu, Rong,et al."Monitoring and Analysis of Stress and Deformation Features of Boundary Part of Backfill in Metal Mine".SUSTAINABILITY 12.2(2020):14.
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