Indian Sublevel Caving
Structural Parameter Optimization for Large …
Non-pillar sublevel caving is beginning to use large structural parameters in China. Appropriate structural parameters can effectively control the loss and dilution of stope and improve ore drawing efficiency. In this study, taking …
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Sub-level caving: engineered to perform
MANAGEMENT Sub-level caving: engineered to perform. Simon Steffen of Elexon Mining discusses methods for optimising production at modern sublevel caves, while maximising ore grades and recovery
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Sublevel Stoping Mining Method
Since the 1970s, the sublevel stoping mining method (Fig. 1) has been an open stope mining method with relatively advanced technology, high mechanization and efficiency, reasonable safety, and low loss for the application of trackless excavating equipment in the underground.Its main features include: (1) The stage height is 40–60 m and can be classified …
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Sublevel caving method layout [1].
Download scientific diagram | Sublevel caving method layout [1]. from publication: Numerical Investigation of Caved Rock Mass Friction and Fragmentation Change Influence on Gravity Flow Formation ...
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Coal Pillar Extraction Under Weak Roof
This article offers an examination of a retreat mining method conducted at the Pinoura Mine in India from 2010 to 2017. The method is atypical for coal mines of India's coalfields. ... Investigation into the behaviour of a support system and roof strata during sublevel caving of a thick coal seam. Geotech Geol Eng 17:21–35. https://doi ...
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Underground mining of thick coal seams
However, the scope of single lift working of a thick coal seam by a mechanized longwall sublevel caving method (soutirage) is restricted by massiveness and higher strength …
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Production Scheduling in Sublevel Caving Method with the
Sublevel caving is one of the main underground mining methods for hard rock mining and there are limited studies about its long-term production scheduling. ... Optimal …
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(PDF) Blasting in sublevel caving
PDF | On Nov 6, 2023, Slavko Torbica and others published Blasting in sublevel caving | Find, read and cite all the research you need on ResearchGate
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An analysis of productivity in sublevel caving mines
An analysis of productivity in sublevel caving mines G R Power1 1. MAusIMM, Principal Engineer, Power Geotechnical Pty Ltd., Email: gavin.power@powergeotechnical ABSTRACT A useful way to assess potential productivity of SLC mines is by quantifying tonnes/drawpoint/day to be extracted from the mine.
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Draw control strategies in sublevel caving mines
Sarin, D.K. 1981. A review of sub-level caving practices in Canada. Proceedings of the International Conference on Caving and Sublevel Stoping, Design and Operation of Caving and Sublevel Stoping Mines, Denver, Colorado, 8 July …
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A global review of recovery, dilution and draw …
Abstract: Sublevel caving (SLC) has previously been regardedas a high dilution and low recovery mining method requiring specific orebody geometry and rock mass conditions to be successful. Progress in the past 20 years at numerous …
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Structural Parameter Optimization for Large …
Non-pillar sublevel caving is beginning to use large structural parameters in China. Appropriate structural parameters can effectively control the loss and dilution of stope and improve ore ...
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Analytical Model Determining the Optimal Block Size in the Block Caving
Nowadays along with population growth, industry development, consumption of mineral resources and the fact that the reserves on hand are running out, the depth of surface and underground mines for further exploitation are increasing. During recent years, in underground mining, the block caving method for low-grade and large-scale deposits has shown a growing …
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Numerical Simulation of production blasting in sublevel caving
Semantic Scholar extracted view of "Numerical Simulation of production blasting in sublevel caving" by Hong-yuan Liu et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 221,603,756 papers from all fields of science. Search ...
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Parameters influencing full scale sublevel caving material recovery …
Sublevel caving (SLC) is a mass mining method based upon the utilisation of gravity flow of blasted ore and caved waste rock [1]. The method functions on the principle that ore is fragmented by blasting, while the overlying host rock fractures and caves under the action of mine-induced stresses and gravity [2]. The caved waste from the ...
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Design & Operating Principles in Caving Methods
Sub-Level Caving . 65 - 180 1500 – 50 000 7 - 17 . Block Caving . 300 - 2000 10 000 – 100 000 1 – 2.5 ~ 9$/t average Source: BMO Capital markets 2011 Global Metals and Mining …
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Draw control strategies in sublevel caving mines
Proceedings of the International Conference on Caving and Sublevel Stoping, Design and Operation of Caving and Sublevel Stoping Mines, Denver, Colorado, 8 July 1981. Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers. pp. 373-385. Links ] Selldén, H. and Pierce, M. 2004. ...
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(PDF) Rock fragmentation measurements in sublevel caving: …
in sublevel caving mines', Mining Technology, vol ... a review The rock fragmentation process in mining currently being practiced in India needs re-examination to improve the productivity of the ...
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Investigation into the behaviour of a support system and …
Sublevel caving is an established practice for the exploitation of thick seams under weak and laminated roof strata and a number of attempts have been made in India to use this mining method for the extraction of thick seams under moderate roof strata.
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Sublevel caving a narrow vein mine – Pajingo's case …
of sublevel caving (SLC). This involved mining against historic backfilled stopes either longitudinally or transversely while retreating to or along the periphery domain boundaries, allowing the backfill to cave in front of the cave. This has been labelled modified sublevel shrinkage (MSLS) based on its
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The future of sublevel caving is being assessed
Large-scale sublevel caving, which is employed in both the Kiruna and Malmberget mines, is a resource-efficient and cost-effective method for large-scale underground mining. LKAB has applied this method successfully and efficiently for decades. The method has also been continuously developed and refined to meet the specific requirements of ...
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Development of a model for economic control of …
Introduction. Sublevel caving (SLC) is a mass mining method in which the ore is drilled and blasted while the waste rock caves and fills the space created by the extraction of ore (Cokayne Citation 1982).The ore body is …
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An overview of block caving operation and available methods …
Report number: MOL Research Report Two 2009/2010, Mining Optimization Laboratory, September 2010, Paper 108, pp. 116-133 (ISBN: 978-1-55195-280-2)
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Investigation into the Behaviour of a Support System …
roof strata during sublevel caving of a thick coal seam RAJENDRA SINGH and T.N. SINGH Central Mining Research Institute (CMRI), Dhanbad, Bihar, India (Received 23 June 1997; accepted 20 November 1998)
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Optimum Sublevel Height and Drift Spacing in Sublevel …
In September 2007, the mine decided to adopt the underground mining method, and started the shaft development for the sublevel caving mine with a production scale of 75,000 tons/year. Subsequently, in August 2012, the mine began partial stoping work. The sublevel height is divided into 13 and 14 m and the drift spacing is chosen at 12.5 m.
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Evolution of sublevel caving
PDF | On Apr 1, 2016, M. Lovitt published Evolution of sublevel caving - Safety improvement through technology | Find, read and cite all the research you need on ResearchGate
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Development of a model for economic control of loading in sublevel
Sublevel caving (SLC) is a mass mining method in which the ore is drilled and blasted while the waste rock caves and fills the space created by the extraction of ore (Cokayne Citation 1982). The ore body is divided into vertical intervals called sublevel intervals. The ore within each sublevel interval is drilled in a fan-shaped design at a ...
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Investigation of Mining-Induced Fault Reactivation …
The long-term deformation of the Jinshandian Iron-ore Mine in China was monitored in situ, and the failure characteristics of the underground roadways and ground surface were analyzed. The mechanisms responsible for the mining-induced fault reactivation associated with non-pillar sublevel caving were subsequently revealed. When the quality of the overlying …
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Investigation into the Behaviour of a Support System and …
Monitoring of strata control parameters and behaviour of a powered support was carried out during an experimental trial of a mechanized longwall sublevel caving face for exploitation of a 7.5m thick coal seam. Field observations indicated that the requirement of support density for underwinning of top coal by sublevel caving under intact strata is different from that for …
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Caving Method, Classification and Application of the
The sublevel caving method with sill pillar was first applied in the Soviet Union in the 1940s and introduced into China in the early 1960s, and it has been widely used in nonferrous metal mines. The continuous improvement of long-hole drilling equipment, blasting technique, and overburden ore drawing theory contributes to increasing sublevel ...
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