International Journal of Mining Reclamation and Environment最新文献_第8页

Goaf instability in an open pit iron mine triggered by dynamics disturbance: a large-scale similar simulation 动力学扰动引发露天铁矿采空区失稳的大规模相似模拟

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-07-11 DOI: 10.1080/17480930.2023.2233866

Baoxu Yan, Hanwen Jia, Zhen-sheng Yang, E. Yilmaz, Hong-lei Liu

{"title":"Goaf instability in an open pit iron mine triggered by dynamics disturbance: a large-scale similar simulation","authors":"Baoxu Yan, Hanwen Jia, Zhen-sheng Yang, E. Yilmaz, Hong-lei Liu","doi":"10.1080/17480930.2023.2233866","DOIUrl":"https://doi.org/10.1080/17480930.2023.2233866","url":null,"abstract":"ABSTRACT The stability of concealed goafs in open-pit mines under the influence of blasting disturbances is directly related to successful mining production. Based on large-scale similar simulations, this study steadily analyses the evolution of full-stress/strain and acoustic emission response information relevant to the instability and failure of the concealed goaf under multiple blasting disturbances in an open-pit iron mine. The results show that after three blasting disturbances, a tension-shear dislocation area is formed at the side corner of the goaf. The goaf roof’s vertical displacement exhibits a ‘two-stage increase’ before roof caving. In contrast, the axial stress on the side wall undergoes ‘two-stage pressure relief’ before roof caving. The stress pattern of ‘stretch-unload-compression-shear’ is observed near the free surface of the side angle before roof caving, while ‘two-stage pressurisation’ is observed at the far end of the free surface. This paper delivers a new way of exploring goaf stability under blasting disturbances.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49533299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Investigation of optimal surface paste disposal design based on crack intensity 基于裂纹强度的表面膏体处理优化设计研究

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-07-05 DOI: 10.1080/17480930.2023.2232987

A. Bascetin, S. Tuylu, D. Adiguzel

{"title":"Investigation of optimal surface paste disposal design based on crack intensity","authors":"A. Bascetin, S. Tuylu, D. Adiguzel","doi":"10.1080/17480930.2023.2232987","DOIUrl":"https://doi.org/10.1080/17480930.2023.2232987","url":null,"abstract":"ABSTRACT There are many factors affecting the mechanical and geochemical stability of the surface paste disposal (SPD) method. The most important of these are the cracks occurring during the storage of tailings. The relationship between the volumetric water content (VWC), matrix absorption (MS), and oxygen (O2) values of the paste material are important in the formation of cracks. In this study, surface crack formations of the paste material stored at the laboratory in accordance with 3 different storage methods (cemented and uncemented) were observed during the pour and after the deposition, and crack intensity factor (CIF) was measured. The relationship between CIF with VWC, MS, and O2 parameters was examined. As a result, the CIF value decreases approximately by %75 with cement addition in the lowest and highest layers in the SPD method. In a case receiving the most rain, the crack intensity value of the highest layer was determined to be 3,9% in the Design 3 where cement was used in the lowest and highest layers. In addition, VWC, MS, and O2 levels were 35%, −29 kPa, and 17.5%, respectively, making the paste material more efficient in terms of mechanical and geochemical stability.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47203856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning models for occurrence form prediction of heavy metals in tailings 尾矿中重金属赋存形态预测的机器学习模型

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-07-04 DOI: 10.1080/17480930.2023.2229689

Jiashuai Zheng, Mengting Wu, ZaherMundher Yaseen, Chongchong Qi

引用次数: 1

Preliminary assessment of potential pollution risks in soils: case study of the Córrego do Feijão Mine dam failure (Brumadinho, Minas Gerais, Brazil) 土壤潜在污染风险的初步评估——以Córrego do feij<e:1>矿溃坝(巴西米纳斯吉拉斯州布鲁马迪尼奥)为例

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-06-21 DOI: 10.1080/17480930.2023.2226474

A. C. Buch, D. B. Sims, M. Correia, E. D. Marques, E. Silva-Filho

{"title":"Preliminary assessment of potential pollution risks in soils: case study of the Córrego do Feijão Mine dam failure (Brumadinho, Minas Gerais, Brazil)","authors":"A. C. Buch, D. B. Sims, M. Correia, E. D. Marques, E. Silva-Filho","doi":"10.1080/17480930.2023.2226474","DOIUrl":"https://doi.org/10.1080/17480930.2023.2226474","url":null,"abstract":"ABSTRACT The magnitude of the impacts caused by tailing dam failures represents, in a very short space of time, the potential risks of metals on the environment along time. In riparian soils affected by the failure of Córrego do Feijão Mine dam (Brazil), potential pollution risks were estimated using geochemical indices. Based on background and baseline values, strong anthropogenic interferences in the soil metal enrichment has been evidenced after collapse. Abnormal levels of Cd (1.01 mg kg−1), Cr (80 mg kg−1), As (28 mg kg−1), Cu (90 mg kg−1), Pb (80 mg kg−1), and Ni (35 mg kg−1) in soils were associated to the highest risks. Overall, the potential ecological risk (>600) and pollution load (>5) indices indicated Brumadinho, Mário Campos, Betim and São Joaquim de Bicas as the areas most affected by the tailings spill. For the most areas, the geological accumulation index calculated from baseline values showed high commitments in soil quality, with pollution degree from moderately to strongly polluted (from 3 to 5, for Hg and Ni) and extremely polluted (>5, for Cd and Pb). In order to maintain the functional ecosystem integrity, restorative and reparative actions must be urgently carried out in these areas","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47511075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Durability of CO2-fly ash-based backfill materials in cation water deterioration CO2粉煤灰基回填材料在阳离子水劣化中的耐久性

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-05-27 DOI: 10.1080/17480930.2023.2216498

Ich D. Ngo, Liqiang Ma, Jiangtao Zhai, Yangyang Wang, Tianxiang Wei

引用次数: 0

Investigation of the Leeb hardness test in rapid characterisation of rock cores with particular emphasis on the effect of length to diameter ratio 里氏硬度试验在岩心快速表征中的研究，特别强调长径比的影响

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-05-22 DOI: 10.1080/17480930.2023.2213549

S. B. Çelik, İ. Çobanoğlu, T. Koralay, K. Gireson

引用次数: 1

Engineering properties of fine-grained red mud 细粒赤泥的工程特性

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-05-17 DOI: 10.1080/17480930.2023.2212575

Hua Tian, David J. Williams, K. Mandisodza, Chenming Zhang, Sebastian Quintero Olaya, Wenqiang Zhang, Chongyi Tang

{"title":"Engineering properties of fine-grained red mud","authors":"Hua Tian, David J. Williams, K. Mandisodza, Chenming Zhang, Sebastian Quintero Olaya, Wenqiang Zhang, Chongyi Tang","doi":"10.1080/17480930.2023.2212575","DOIUrl":"https://doi.org/10.1080/17480930.2023.2212575","url":null,"abstract":"ABSTRACT Basic engineering parameters of fine-grained red mud tailings were evaluated via laboratory tests; the coupled effect of mineralogy and microstructure was investigated by appraising the stress-deformation characteristics; and the static and seismic liquefaction susceptibilities were evaluated via critical state soil mechanics and empirical equations, respectively. Results indicated the presence of cementitious minerals without swollen clay minerals. The textural and compression properties were similar to those of clays, whereas the strength parameters were similar to those of sand. The stress-deformation curves show overall strain softening with a temporary strain-hardening curve at the beginning, which can be qualitatively explained by the coupled effect of the microstructure and mineral components. Hydroxysodalite precipitated at the contact points among the particles afforded microstructural cementation bonds, allowing the aggregates to resist external loads at the initial loading stage. Red mud presented strong resistance to static liquefaction but was potentially seismically liquefiable.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41305888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the crack propagation behaviour of eccentric uncoupled blasting in a deep-level rock mass 深层岩体偏心非耦合爆破裂纹扩展特性研究

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-05-17 DOI: 10.1080/17480930.2023.2213546

Fei Zhang, Li-yun Yang, Huanning Hu, Chen Huang, Siyu Chen

{"title":"Study on the crack propagation behaviour of eccentric uncoupled blasting in a deep-level rock mass","authors":"Fei Zhang, Li-yun Yang, Huanning Hu, Chen Huang, Siyu Chen","doi":"10.1080/17480930.2023.2213546","DOIUrl":"https://doi.org/10.1080/17480930.2023.2213546","url":null,"abstract":"ABSTRACT To explore the dynamic crack propagation behaviour in the fracture zone and the damage characteristics of the rock mass around the blasthole during eccentric uncoupled blasting of a deep-level rock mass, theoretical analysis, model experiments and numerical simulation studies have been described in this paper. Firstly, the stress state of the crack and the stress distribution state and failure mechanism of the rock mass around the blasthole under the influence of the in-situ stress, and the pressure distribution of blast shock wave on the blasthole were analysed. Secondly, with the help of a new digital laser caustics experimental system, the eccentric uncoupled blasting model experiment under the action of the in-situ stress was carried out. The fractal damage theory is used to quantitatively evaluate the damage degree of the rock mass in different areas around the blasthole, and the blast-induced crack propagation mechanical behaviour characteristics in the fracture zone are analyzed from the perspective of dynamics. Then, based on the LS-DYNA software, a numerical simulation study was conducted on the eccentric blasting of deep rock mass. Finally, some discussions and suggestions are provided for the analysis of blasting mechanisms in a deep-level rock mass.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46281674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimising the mine production scheduling accounting for stockpiling and investment decisions under geological uncertainty 地质不确定性下考虑库存和投资决策的矿山生产调度优化

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-04-13 DOI: 10.1080/17480930.2023.2199378

Zeyneb Brika, M. Gamache, R. Dimitrakopoulos

引用次数: 0

Real-time truck dispatching in open-pit mines 露天矿卡车实时调度

IF 2.4 3区工程技术

International Journal of Mining Reclamation and Environment Pub Date : 2023-04-12 DOI: 10.1080/17480930.2023.2201120

Xiaowei Wang, Q. Dai, Yougang Bian, Guotao Xie, Biao Xu, Zeyu Yang

{"title":"Real-time truck dispatching in open-pit mines","authors":"Xiaowei Wang, Q. Dai, Yougang Bian, Guotao Xie, Biao Xu, Zeyu Yang","doi":"10.1080/17480930.2023.2201120","DOIUrl":"https://doi.org/10.1080/17480930.2023.2201120","url":null,"abstract":"ABSTRACT Real-time truck dispatching is an important function of the open-pit mine transportation system. However, most of the existing methods are not comprehensive enough to consider the optimisation of both full truck hauling and empty truck travelling stages. Further, most of the real-time dispatching criteria are fixed, which cannot meet the variety of production requirements. To address the above problems, we consider both full and empty truck dispatching, and different from previous studies, we develop a real-time dispatching model with two parts for heterogeneous fleets in open-pit mines: a full truck dispatching model for truck-finished loading at the loading place, and an empty truck dispatching model for truck-finished dumping at the dumping place. Specifically, the proposed model has three goals for minimisation: (a) the waiting time of the trucks, (b) the deviation from the planned path flow rate, and (c) the transportation cost. Furthermore, the weights of the three sub-objectives can be changed to meet the production requirements for different real scenarios. Simulation results show that the proposed model can achieve a higher production by at least 14% and decrease the cost by at least 6% and has better adaptability to different production requirements.","PeriodicalId":49180,"journal":{"name":"International Journal of Mining Reclamation and Environment","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49192716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1