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International Journal of Mining and Mineral Engineering最新文献

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Sonar mapping of abandoned water-logged underground coal mine and backfilling operation using underwater camera 利用水下摄像机对废弃地下积水煤矿进行声纳测绘及回填作业
International Journal of Mining and Mineral Engineering Pub Date : 2021-01-01 DOI: 10.1504/ijmme.2021.10043027
S. Pal, A. Tripathi, Susmita Panda, S. Palaniappan
{"title":"Sonar mapping of abandoned water-logged underground coal mine and backfilling operation using underwater camera","authors":"S. Pal, A. Tripathi, Susmita Panda, S. Palaniappan","doi":"10.1504/ijmme.2021.10043027","DOIUrl":"https://doi.org/10.1504/ijmme.2021.10043027","url":null,"abstract":"","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Investigation of optimum secondary fan location and air quantity to control DPM recirculation in underground dead-end workings 地下死角巷道控制DPM再循环的最佳二次风机位置及风量研究
International Journal of Mining and Mineral Engineering Pub Date : 2021-01-01 DOI: 10.1504/ijmme.2021.10043031
J. Jacobs, R. Morla, S. Karekal, A. Godbole, B. Chapula, M. Shriwas
{"title":"Investigation of optimum secondary fan location and air quantity to control DPM recirculation in underground dead-end workings","authors":"J. Jacobs, R. Morla, S. Karekal, A. Godbole, B. Chapula, M. Shriwas","doi":"10.1504/ijmme.2021.10043031","DOIUrl":"https://doi.org/10.1504/ijmme.2021.10043031","url":null,"abstract":"","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Short-term production scheduling in open pit mines with shovel allocations over continuous time frames 露天矿连续时间内铲式分配的短期生产调度
International Journal of Mining and Mineral Engineering Pub Date : 2021-01-01 DOI: 10.1504/ijmme.2021.10045510
S. Upadhyay, J. Doucette, Hooman Askari Nasab
{"title":"Short-term production scheduling in open pit mines with shovel allocations over continuous time frames","authors":"S. Upadhyay, J. Doucette, Hooman Askari Nasab","doi":"10.1504/ijmme.2021.10045510","DOIUrl":"https://doi.org/10.1504/ijmme.2021.10045510","url":null,"abstract":"Short term mine production scheduling is essential to attain the desired capacity utilization of equipment, meet blending targets and adhere to the strategic schedules. Although, several optimization models exist in the literature, size and complexity remains a problem which poses a limitation to solve and generate the schedules at smaller resolutions for larger time frames. This paper presents a short term production scheduling model which allocates shovels over continuous time frames, thus controlling the model size from growing with the resolution. This approach also models the mine operating environment in a more representative way to create practical and achievable schedules. A verification study of the model is presented in this paper using an iron ore mine case study. A comparison of solutions in the pareto optimal space also justifies the goal optimization as an efficient approach to attain best outcomes from among multiple conflicting objectives of the problem.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66731801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Evaluation of blast fragmentation and its benefits: a review of the paradigm and ambiguity 爆炸破片及其效益的评价:范式和模糊性的回顾
International Journal of Mining and Mineral Engineering Pub Date : 2020-12-16 DOI: 10.1504/ijmme.2020.10034283
Shaib Abdulazeez Shehu, M. Hashim
{"title":"Evaluation of blast fragmentation and its benefits: a review of the paradigm and ambiguity","authors":"Shaib Abdulazeez Shehu, M. Hashim","doi":"10.1504/ijmme.2020.10034283","DOIUrl":"https://doi.org/10.1504/ijmme.2020.10034283","url":null,"abstract":"Wrong blasting can lead to various degrees of inefficiencies in the subsequent mining processes. It is therefore necessary to constantly evaluate blast results and optimise the process. Good blasting provides cheaper benefits when compared to crushing and grinding. Good blast may be expensive but its technical and economic benefits override such an intensive cost. Blast benefits are based on the size distribution of muckpile and the degree of induced microcracks. The size distribution can be visually accessed qualitatively as either good or poor, and quantitatively by screening or different image analysis techniques. However, screening is the only direct and most accurate method of evaluating fragmentation but not suitable for large projects. Though the microcracks can be seen with a specialised microscope but can only be assessed systematically through the study of production output and energy consumption. This paper reviews the benefits, paradigm and the ambiguity of evaluating blast fragmentation.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41751439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Relationship of coefficient of restitution and damping coefficient of rock 岩石的恢复系数与阻尼系数的关系
International Journal of Mining and Mineral Engineering Pub Date : 2020-12-16 DOI: 10.1504/ijmme.2020.10034281
Olaniyi Arowojolu, S. Jung, A. Abdo
{"title":"Relationship of coefficient of restitution and damping coefficient of rock","authors":"Olaniyi Arowojolu, S. Jung, A. Abdo","doi":"10.1504/ijmme.2020.10034281","DOIUrl":"https://doi.org/10.1504/ijmme.2020.10034281","url":null,"abstract":"When rock travels through an ore pass, it falls, hits other rock materials, and ore passes walls. It is essential to understand the material flow and rock particle interactions in an ore pass to avoid hang-ups and accidents involving rock flow. Part of that understanding is to comprehend how rock reacts when it collides with other particles and other materials. It is difficult to determine the coefficient of restitution and the damping coefficient experimentally simultaneously. The objective of this study was to investigate the relation between the two parameters and determine their correlation mathematically. While it is difficult to measure the damping coefficient of rocks in a laboratory directly, results showed that it could be determined mathematically using the coefficient of restitution. Thus, it facilitates the use of rock flow dynamics simulation programs. Furthermore, the analysis showed that the coefficient of restitution exponentially decayed as the damping coefficient increased.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44430987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stress distribution and failure characteristics of deep inclined seam and overhead mining along strike longwall floor 深倾斜煤层沿走向长壁底板顶板开采应力分布及破坏特征
International Journal of Mining and Mineral Engineering Pub Date : 2020-12-16 DOI: 10.1504/ijmme.2020.10034280
Fengda Zhang, Baohong Shen, Wenyan Guo
{"title":"Stress distribution and failure characteristics of deep inclined seam and overhead mining along strike longwall floor","authors":"Fengda Zhang, Baohong Shen, Wenyan Guo","doi":"10.1504/ijmme.2020.10034280","DOIUrl":"https://doi.org/10.1504/ijmme.2020.10034280","url":null,"abstract":"Based on a case study, this paper presents the stress distribution characteristics and plastic zone distribution characteristics of a deep inclined seam and overhead mining along strike longwall (ICMSL) floor by considering the results from numerical simulations, theoretical calculations, and field measurements. The results show that the vertical taper structure is formed by the roof, the interconnection, and the maingate. The vertical taper structure is formed by the floor, the face, and tailgate. The movement and deformation are mutually restricted by the vertical taper structure, which leads to the stress concentration of vertical stress and maximum shear stress. The maximum failure depth is 20 m, and the failure zone is mainly concentrated in the vicinity of the interconnection and face. The maximum failure depth of the coal seam floor is 21.32 m by theoretical calculation, and between 18.19 m and 20.24 m by in situ field tests.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42641446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Prediction of rock properties using grinding characteristics of ball mill 利用球磨机磨削特性预测岩石性质
International Journal of Mining and Mineral Engineering Pub Date : 2020-12-16 DOI: 10.1504/ijmme.2020.10034277
K. R. Chandar, A. Umamahesh, Kashetti Prudhvi Kumar, Durgam Avinash
{"title":"Prediction of rock properties using grinding characteristics of ball mill","authors":"K. R. Chandar, A. Umamahesh, Kashetti Prudhvi Kumar, Durgam Avinash","doi":"10.1504/ijmme.2020.10034277","DOIUrl":"https://doi.org/10.1504/ijmme.2020.10034277","url":null,"abstract":"Knowledge of physico-mechanical properties of rocks is essential starting from the preliminary exploration to processing in mining projects. The strength properties of rocks considered necessary for mine planning and design, selection of equipment, use of suitable processing technique, etc. Sophisticated laboratory facilities are required to determine various properties of rocks using some international standards like ISRM, ASTM, etc., which is time consuming and costly affair. In this study, an attempt is to predict some of the rock properties like density, tensile strength using grinding characteristics of ball mill. Laboratory experiments conducted on samples of granite, limestone, slate and BHQ varying different parameters like quantity of feed, charge ratio, size of balls, grinding time, etc., at constant RPM of ball mill. Grinding characteristic curves used to obtain 25%, 50%, 80% cumulative passing sieve sizes. In addition, laboratory experiments carried out to find physico-mechanical properties like density, tensile strength, Protodyakonav's strength index, rebound hardness number. Regression analysis carried out with the data obtained from experiments.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47861966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Workplace risk assessment and control of fires and explosions in underground coal mines 煤矿井下火灾爆炸作业场所风险评价与控制
International Journal of Mining and Mineral Engineering Pub Date : 2020-09-07 DOI: 10.1504/ijmme.2020.10031914
M. Shriwas, C. Pritchard
{"title":"Workplace risk assessment and control of fires and explosions in underground coal mines","authors":"M. Shriwas, C. Pritchard","doi":"10.1504/ijmme.2020.10031914","DOIUrl":"https://doi.org/10.1504/ijmme.2020.10031914","url":null,"abstract":"On 19 December 1984, the Wilberg mine fire resulted in 27 deaths, and on 5 April 2010, the Upper Big Branch Mine explosion caused an additional 29 fatalities. Investigations of these events suggest...","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45317518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mine health and safety: influence of psychosocial factors on musculoskeletal disorders among miners in Pakistan 矿山健康与安全：心理社会因素对巴基斯坦矿工肌肉骨骼疾病的影响
International Journal of Mining and Mineral Engineering Pub Date : 2020-07-16 DOI: 10.1504/ijmme.2020.10030575
Ebelia Manda, Xiang Lu, Paras Behrani, Izhar Mithal Jiskani, Jonhatan Magno Norte da Silva, Saleem Raza Chalgri
{"title":"Mine health and safety: influence of psychosocial factors on musculoskeletal disorders among miners in Pakistan","authors":"Ebelia Manda, Xiang Lu, Paras Behrani, Izhar Mithal Jiskani, Jonhatan Magno Norte da Silva, Saleem Raza Chalgri","doi":"10.1504/ijmme.2020.10030575","DOIUrl":"https://doi.org/10.1504/ijmme.2020.10030575","url":null,"abstract":"Mine health and safety is considered to be one of the fundamental determinants of sustainable mining. The purpose of this study was to analyse the severity of musculoskeletal disorders (MSDs) and to investigate the influence of psychosocial factors on its development. The data from 252 coal miners were collected through a self-administered questionnaire. Ordinal logistic regression modelling was performed to examine the association between MSDs and psychosocial factors. The results showed that miners face moderate to severe risks of MSDs. The elbow, lower back, and knee were the most commonly reported complaints. Job demands and control at work were the psychosocial factors that increase the risk of developing MSDs. Whereas, monotonous work and commitment to the organisation reduce the chance of developing MSDs. The findings of this study will be a significant endeavour to formulate preventive management programs to promote miners' health and safety.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42014102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Investigation of DPM dispersion in unventilated dead-ends using transient flow modelling 用瞬态流动模型研究DPM在不通风死角的分散
International Journal of Mining and Mineral Engineering Pub Date : 2020-07-16 DOI: 10.1504/ijmme.2020.10030571
R. Morla, S. Karekal, A. Godbole
{"title":"Investigation of DPM dispersion in unventilated dead-ends using transient flow modelling","authors":"R. Morla, S. Karekal, A. Godbole","doi":"10.1504/ijmme.2020.10030571","DOIUrl":"https://doi.org/10.1504/ijmme.2020.10030571","url":null,"abstract":"This paper presents a detailed study of DPM dispersion in unventilated dead-end cross-cuts in an underground mine. The dispersion and dilution of DPM was measured in dead-end with time when the air is flowing in the main gallery. Parametric studies were conducted by varying the dead-end cross-cut lengths (10 m, 15 m, 20 m and 25 m), varying cross-cut angles (450, 900 and 1,350) with the main gallery and varying the velocities (0.5 m/s, 1 m/s, 2 m/s, 3 m/s, 4 m/s) in the main gallery across the cross-cuts. The results obtained show that longer time durations are required to dilute DPM for greater dead-end cross-cut lengths and angles. For 50 m dead-end cross-cut, it took five hours to reduce DPM concentration from 820 μg/m3 to 100 μg/m3. Studies also show that higher air velocity in adjacent main gallery results in shorter dilution time durations in dead-end cross-cuts. When the air velocity is below 0.5 m/s in the main gallery, no influence of DPM dilution was observed in the unventilated cross-cut for a long time.","PeriodicalId":38622,"journal":{"name":"International Journal of Mining and Mineral Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47926484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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