Blasting practices in underground mines has limited flexibility due to many safety criteria, statutory and field constraints. This has narrowed the scope of major modifications in the solid ...
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Blasting practices in mines have undergone many changes in the recent past and continue to be honed and reconfigured to meet the demands of today's mining needs. This volume compiles papers of the workshop Blasting in Mines – New Trends, hosted by the Fragblast 10 Symposium . The 17 papers provide a mix which highlight the evolving …
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Blasting is an important operation in mining production but is a source of concern due to its associated environmental impact; in particular, blasting-induced vibrations may cause structural damage and human discomfort. For decades, communities near open-pit mines have complained of blasting-induced vibrations.
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Sur-face outcrops were the first to be mined in Johan-nesburg more than 100 years ago. Sub-outcrops have given rise to some of deepest mines in the world. Figure 3. Gold and platinum mining areas in South Africa. They are exploited through deep shafts and tunnels cut at the minimum practicable dimensions.
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To evaluate the magnitude of blasting vibrations, it is important to consider PPV as a fundamental critical base parameter practice in terms of vibration velocity.
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Methods in Hard Rock Mines Rajnikant, Paul P S, Kher A A and Kumar D RPAMI-MWB-05 Estimation of Coal Pillar Strength Using Empirical and Numerical Approaches for Board …
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Blasting Practices in Mines Author: Partha Das Sharma (B.Tech-Hons. In Mining Engg.) E.mail - [email protected] and [email protected] 1. Introduction – Most rocks and ores …
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This paper discusses the wind blast / air blast phenomenon, how it is managed in coal mines and how it might best be managed in other underground mines. L'article qui suit a pour objets de decrire le phenomène de tir a l'air comprime et les methodes de moderation de celui-ci dans les mines de houille, et d'indiquer de quelle …
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Design and general practice of mass blast in underground open stopping mining method 11 Q. Liu Improving pit wall stability by minimizing blast damage vis a vis rock characterization at RAM 21 P.K. Rajmeny, R. Shrimali, L.S. Shekhawat & A. Joshi New physical findings revolutionize the drilling and blasting technology as well as the
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Blasting Practices in Mines Author: Partha Das Sharma (B.Tech-Hons. In Mining Engg.) E.mail - [email protected] and [email protected] 1. Introduction – Most rocks and ores require blasting to break them into smaller particles before an excavation takes place in mining operations. Explosive materials are tools that benefit mankind, when used ...
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Author: Partha Das Sharma (E.mail: [email protected]) 1 Blasting Practices in Mines Author: Partha Das Sharma (B.Tech-Hons. In Mining Engg.) E.mail - [email protected] and [email protected] 1. Introduction – Most rocks and ores require blasting to break them into smaller particles before an excavation takes place in mining operations. Explosive …
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-----Author: Partha Das Sharma, E.mail: [email protected] 3 Fig – 1(A) Fig – 1(B)-----Author: Partha Das Sharma, E.mail: [email protected] 4 Fig – 2 As mentioned, with long hole drilling, blasting practice has advanced considerably with increasing use of stronger new generation emulsion explosives along with use of precise and accurate ...
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Blast Personnel Training: Providing comprehensive training to blasting personnel is crucial in ensuring safe and responsible blasting practices. This includes educating them on proper blast design, loading techniques, stemming procedures, standards and regulations, and the use of protective measures to minimise the risks of …
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Along with that, a blast fragmentation analysis is conducted for the rock pile images of a blasting site collected from Dongri Buzurg Mine (MOIL), India using the image processing technique in ...
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P.D. Sharma. P.D. Sharma. ... The research results should have a positive impact on hazard awareness, prevention, and safe blasting practices in mining and construction industries.
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Chapter. First Online: 31 May 2023. 150 Accesses. Abstract. The state-of-the-art blasting methodologies have been developed over the years to overcome the challenges of …
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4. Sublevel stopping with Long Blast Holes: Demand for increased rate of production coupled with improvement in drilling technique has lead to the use of long hole blasting for ore extraction from Underground Metalliferous mines. Considerable advances have been made by introduction of long-hole and precise drilling in stopes. Today, most …
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Paper presented at the 10th ISRM Congress, on, South Africa, September 2003. This paper discusses the wind blast / air blast phenomenon, how it is …
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----- Author: Partha Das Sharma, E.mail: [email protected] 5. Fig – 2. As mentioned, with long hole drilling, blasting practice has advanced considerably with increasing use of stronger new generation emulsion explosives along with use of precise and accurate millisecond NONEL / Electronic delay detonators for obtaining better …
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Surface mines primarily use drilling and blasting, which is an effective and relatively inexpensive method to excavate the hard rock mass. The geometry of surface mine bench blasting has a ...
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Rock blasting is a prominent mining technique for metal and non-metal resources, such as hard rock mining excavations and quarrying. According to 5, around 30% of the energy from the whole explosive
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The blasting methods used are as follows: a) Electric blasting. 4.2 Surface Mining b) Blasting with safety fuse and plane detonators. c) Blasting by detonating cord. d) Nonel blasting. Surface Mining is the one, which attracts maximum attention due to its adverse environmental impact. Widely seen problems that are
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-----Author: Partha Das Sharma, E.mail: [email protected] 3 Fig – 1(A) Fig – 1(B)-----Author: Partha Das Sharma, E.mail: [email protected] 4 Fig – 2 As mentioned, with long hole drilling, blasting practice has advanced considerably with increasing use of stronger new generation emulsion explosives along with use of precise and accurate ...
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Each mine has specific geo-mining conditions, and scientific studies provide appropriate results. In total, 32 number of blasting data sets were recorded at every 50 m from the blast site to the ...
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Please cite this article as: Singh PK, Roy MP, Paswan RK, Sarim M, Kumar S, Jha RR, Rock. fragmentation control in opencast blasting, Journal of Rock Mechanics and Geotechnical Engineering. (2016 ...
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Author: Partha Das Sharma (E.mail: [email protected]) 1 Blasting Practices in Mines Author: Partha Das Sharma (B.Tech-Hons. In Mining Engg.) E.mail - [email protected] and [email protected] 1. Introduction – Most rocks and ores require blasting to break them into smaller particles before an excavation takes place in mining operations. …
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Abstract. In this paper, we have used a simulation software to show and characterize the phenomenology associated with airblast events in 3D when the block …
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Managing the Hazard of Wind Blast / Air Blast In Caving Operations In Underground Mines. J. Fowler, B. Hebblewhite, P. Sharma. Published 2003. Engineering, …
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Blasting practices in mines have undergone many changes in the recent past and continue to be honed and reconfigured to meet the demands of today s mining needs. This volume compiles papers of the workshop Blasting in Mines New Trends, hosted by the Fragblast 10 Symposium . The 17 papers provide a mix which highlight the …
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3.2 Blasting Practices at Open Cast Mines. The most important part in extraction from an open cast mine is blasting. Following are some important facts related to blasting practices in open cast mines: ... Kumar, M., Sharma, M., Narayan, R., Joshi, S., Kumar, S.: Zigbee based parameter monitoring and controlling system for induction …
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Article. Techniques of controlled blasting for mines, tunnels and construction workings - To mitigate various blast induced adverse effects. June 2010. Authors: P.D. …
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Blasting is a vital operation in industries such as mining, construction, and quarrying. It involves the use of chemical explosives to break down rocks and other hard materials for various purposes, including the extraction of minerals and the construction of infrastructure [1,2,3,4,5].However, conventional blasting practices have significant …
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Mining activities and civil projects are carried out using one of the most important operations, namely rock blasting, as a wide and economical way to rock breakage and displacement of them 1.In ...
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E-mail address: [email protected]. The 6 th International Conference on Mining Science & Technology Mine safetyâ€"through appropriate combination of technology and management practice Bruce Hebblewhite* School of Mining Engineering, University of New South Wales, Sydney, NSW 2052, Australia Abstract The …
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By P.V.S. Sarma, A.M. Kazmi, A.D. Sao & G. Singh. Abstract. Blasting practices in mines have undergone many changes in the recent past and continue to be …
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Drilling and blasting practices have been developed that are intended to optimize grade control by minimizing forward rock movement, while creating a suitable product for load and haul operations ...
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Blasting, a common practice in mining and excavation, can serve as a trigger for rockbursts. The shockwaves generated by blasting induce ground vibrations …
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In this report the blast vibration monitoring techniques is studied. Ground vibration induced by blasting practices in mines has become a serious environmental issue in today's scenario. Various factors influence the blast vibration being produced from the blasting practices such as the pattern of blasting, drilling pattern, quality and …
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