underground drilling and blasting in India

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  • Design of Drilling and Blasting Pattern for Excavation of ...

    2010-1-1 · High temperatures (60°-98°C) were measured in tunnel of Karcham-Wangtoo hydroelectric project in Himachal Pradesh, India. A safe method of blasting the tunnel face is presented. The nonel detonators are recommended after cooling the blast holes below 80°C by throwing chilled water manually.

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  • Drilling and Blasting in Underground Mining - GRT

    2021-4-1 · Drilling and blasting methods in underground mining – smooth wall blasting. Drilling in underground mining is very diverse but used for two main purposes. Firstly for exploration which aims to obtain very detailed information about the formations below ground surface. Secondly for production to facilitate the labors of ore extraction.

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  • 'A METHOD FOR SOLID BLASTING IN

    Most of coal production from underground coal mines in India is through drilling and blasting. Bord and pillar method is the predominant underground coal mining system in India, contributing over 90% of the total underground coal production.

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  • Tunneling in Rock by Drilling and Blasting - Civil ...

    2020-8-23 · Tunnelling in Rock by Drilling and Blasting is the outcome of the workshop, Tunnelling in Rock by Drilling and Blasting, hosted by the 10th International Symposium on Rock Fragmentation by Blasting (Fragblast 10, November 2010, New Delhi, India), and is essential reading for researchers and practitioners in tunneling in rock by drilling and blasting.

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  • NONEL INITIATION FOR ECO-FRIENDLY BLASTING - TRO

    2019-6-22 · Blasting is an essential component in mining and one of the most economical method of rock excavation applicable to both surface and underground mines. The effect of blasting arising from the mining operation is one of the fundamental problems in the mining industry. Rock fragmentation also plays a pivotal role in large scale mining because of its direct effect on cost of drilling, blasting, secondary blasting, crushing and there-by affecting the overall cost of production. The research investigates the effect of initiation device on environment and the production cost. The objectives of the research were achieved through field measurement and data collection. Various informations pertaining to blasting agents and accessories used for blasting operations were also collected. The results revealed that the flyrock, noise and vibration generated during blasting with NONEL are found to be minimal as compared to the safety fuse and the electrical methods. It is also observed that NONEL initiation increases blasting efficiency and also optimize the cost of blasting.

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  • Emerging trends in drilling and blasting technology ...

    1996-7-1 · The underground excavations of Koyna Hydro-electric Project, Stage IV were carried out by drilling and blasting through Deccan trap formations consisting mainly of basalts and volcanic braccia. Overbreak in the basaltic formation and underbeak in the volcanic braccia increased the cost and time of construction considerably.

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  • Blasting problems in underground constructions

    2021-4-14 · underground and surface mining environments, as well as contractors performing blasting activities on mine sites and civil excavations, personnel from explosives companies, suppliers of explosives products, senior management and consultants to the mining industry.

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  • MKE - Mining Contractor India | Mining Contractors in

    2019-2-4 · Name of Project: Drilling, Blasting, Excavating & removal Segregation, Sizing, Stockpiling, Loading & Unloading Feeding and Transorting of rock boulders of maxium size up to 750 mm at Crusher Stockyard or Crushing Plant as directed with a lead of up to a radius of 2 Kms.

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  • IS 14749 (2000): Proforma for Analysis of Unit Rate of ...

    2018-11-15 · Underground excavation by cyclic drilling and blasting is very often resorted to during construction of River Valley Projects. As very large areas are involved in such operations, it becomes necessary that a proper methodology is available for rate analysis of the same.

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  • IS 5878-2-1 (1970): Code of Practice for Construction of ...

    2018-11-15 · PART II UNDERGROUND EXCAVATION IN ROCK Section I Drilling and Blasting 0. FOREWORD 0.X This Indian Standard (Part II/Section 1) was adopted by the Indian Standards Institution on 26 October 1970, after the draft finalized by the Water Conductor Systems Sectional Committee had been approved by the Civil Engineering Division Council.

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  • NONEL INITIATION FOR ECO-FRIENDLY BLASTING - TRO

    2019-6-22 · and underground mines. The effect of blasting arising from the mining operation is one of the fundamental problems in the mining industry. Rock fragmentation also plays a pivotal role in large scale mining because of its direct effect on cost of drilling, blasting, secondary blasting, crushing and there-by affecting the overall cost of production.

    Get Price
  • DRILLING AND BLASTING Blasting without wires in

    DRILLING AND BLASTING ince the launch of WebGen™, the world’s first wireless initiating system in early 2017, Orica has executed more than 500 blasts fired using the wireless technology in both surface and underground mines around the world. WebGen™ is one of the most exciting blasting technologies

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  • Peculiarities of drilling and blasting in underground ...

    Drilling and blasting are the most important activity, where miners suffer most of the problems, therefore where exists the most important oppor tunity to improve their work, achieving best practices, safety and profitability (Hentschel et al, 2002, Hruschka and Echavarría, 2011). The study presented herein was developed during R&D proj ects ...

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  • Drilling and Blasting | Technical Aspects of Mining ...

    Drilling. Most blasting in mines involves charging explosives into holes drilled in rock. The entrance or mouth of a drill hole is called the collar and the end is the toe. Drilling is still carried out in some cases, in the ASM sector, by hand, using a hammer and chisel. This is obviously tedious and slow, especially in hard-rock mining ...

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  • Optimization of Blasting Parameters in opencast Mines

    2012-7-5 · designed blasting pattern has to be achieved. Proper adoption of drilling and blasting can contribute significantly towards profitability and therefore optimization of these parameters is essential. Introduction Rock breaking by drilling and blasting is the first phase of the production cycle in most of the mining operations.

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  • Mineral exploration companies in india - SlideShare

    2021-7-11 · ADVERTISEMENTS: Read this article to learn about the blasting techniques adopted in underground and opencast mines. Blasting Techniques Adopted in Underground Mines: Drilling Patterns in Stone: Drilling patterns, also called shot-hole patterns, are named after the type of cut holes used and the principal patterns are: ADVERTISEMENTS: (1) Pyramid cut or cone cut (2) Wedge […]

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  • Mining Drilling Bits manufacturers - SVEDrilling Tools

    SVE drilling provides effective solutions for a wide range of underground mining by manufacturing the best-in-class Mining Equipment in India.Various mining solutions include drilling, blasting, boring ore passes and more.

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  • MKE - Mining Contractor India | Mining Contractors

    2019-2-4 · Name of Project: Drilling, Blasting, Excavating & removal Segregation, Sizing, Stockpiling, Loading & Unloading Feeding and Transorting of rock boulders of maxium size up to 750 mm at Crusher Stockyard or Crushing Plant as directed with a lead of up to a radius of 2 Kms.

    Get Price
  • IS 14749 (2000): Proforma for Analysis of Unit Rate of ...

    2018-11-15 · Underground excavation by cyclic drilling and blasting is very often resorted to during construction of River Valley Projects. As very large areas are involved in such operations, it becomes necessary that a proper methodology is available for rate analysis of the same.

    Get Price
  • IS 5878-2-1 (1970): Code of Practice for Construction of ...

    2018-11-15 · PART II UNDERGROUND EXCAVATION IN ROCK Section I Drilling and Blasting 0. FOREWORD 0.X This Indian Standard (Part II/Section 1) was adopted by the Indian Standards Institution on 26 October 1970, after the draft finalized by the Water Conductor Systems Sectional Committee had been approved by the Civil Engineering Division Council.

    Get Price
  • Safety considerations when blasting off the solid in ...

    2009-8-27 · Safety considerations when blasting off the solid in underground fiery coal mines blasting solid faces in thin seams. Coal mines in India also practice undercutting but allow blasting off the solid provided that special explosives are used. Indian practices are largely based on British regulations. Figure I illustrates the breaking mechanisms ...

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  • Optimization of Blasting Parameters in opencast Mines

    2012-7-5 · designed blasting pattern has to be achieved. Proper adoption of drilling and blasting can contribute significantly towards profitability and therefore optimization of these parameters is essential. Introduction Rock breaking by drilling and blasting is the first phase of the production cycle in most of the mining operations.

    Get Price
  • DRILLING AND BLASTING Blasting without wires in

    DRILLING AND BLASTING ince the launch of WebGen™, the world’s first wireless initiating system in early 2017, Orica has executed more than 500 blasts fired using the wireless technology in both surface and underground mines around the world. WebGen™ is one of the most exciting blasting technologies

    Get Price
  • Drilling and Blasting | Technical Aspects of Mining ...

    Drilling. Most blasting in mines involves charging explosives into holes drilled in rock. The entrance or mouth of a drill hole is called the collar and the end is the toe. Drilling is still carried out in some cases, in the ASM sector, by hand, using a hammer and chisel. This is obviously tedious and slow, especially in hard-rock mining ...

    Get Price
  • Mineral exploration companies in india - SlideShare

    2021-7-11 · ADVERTISEMENTS: Read this article to learn about the blasting techniques adopted in underground and opencast mines. Blasting Techniques Adopted in Underground Mines: Drilling Patterns in Stone: Drilling patterns, also called shot-hole patterns, are named after the type of cut holes used and the principal patterns are: ADVERTISEMENTS: (1) Pyramid cut or cone cut (2) Wedge […]

    Get Price
  • Underground Mining Services in India

    Development of pre-split blast designsfor Rampur Agucha Mine of Hindustan Zinc Limited to achieve final stable wall which has made the mine as the deepest opencast mines in India. Designing of drilling and blasting methodology for tunnels, underground powerhouse caverns and open excavation works in more than 20 prestigious hydroelectric ...

    Get Price
  • Rock Excavation Engineering

    Drilling and blasting practices in iron ore mine in india. drilling and blasting practices in iron ore mine in india 124 views. the drill bits used in iron ore mine. the is the professional mining equipments manufacturer in the world, located in china, india, along with other asian drilling iron ore mines for blasting mining equipment drilling ...

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  • Drilling And Blasting Practices In Iron Ore Mine In India

    2019-4-18 · Drilling and Blasting method gives good progress in favourable rock mass condition. Compatibility and feasibility to any sudden required alteration in dimension of excavation profile and/or geological constraints also adds to the popularity and suitability of the drilling and blasting method over other methods of excavation [1, 2].

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  • Tophammer Drilling Tools | Drill String Services | Epiroc

    2011-8-22 · 8 orICA MInIng SerVICeS UndergroUnd 9 orica’s bulk delivery systems are the result of over twenty years of research and development. They have evolved to be in a class of their own in terms of innovation, accuracy, flexibility and capacity.

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  • Underground Face and Jumbo Drill Rigs for Mining

    Drilling and Blasting Image Gallery Mining Technology. The wave pattern will then reflect from the crack in the bottom of the hole ... Drilling and Bolting Equipment for Underground Mining. ... Drilling …

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  • Blast Induced Damage to Surrounding Rock Mass in an ...

    Drilling and blasting operations are very important part of underground excavation design. They should be performed in accordance with some criteria, such as fragmentation, excavation stability and cost. In the paper are considered three drilling and blasting designs in order to reach the optimal one.

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  • Underground - Orica Mining Services

    2016-11-1 · The complexity of blasting operations has already been analysed both for open-pits (Seccatore et al., 2011, Dompieri et al., 2015) and for underground (Cardu et al., 2012). General conclusions suggest that treating rock blasting with non-linear, holistic analysis can detect hidden patterns not detectable by traditional statistics.

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  • Rock Excavation Engineering

    Development of pre-split blast designsfor Rampur Agucha Mine of Hindustan Zinc Limited to achieve final stable wall which has made the mine as the deepest opencast mines in India. Designing of drilling and blasting methodology for tunnels, underground powerhouse caverns and open excavation works in more than 20 prestigious hydroelectric ...

    Get Price
  • Drilling And Blasting Practices In Iron Ore Mine In

    Drilling and blasting practices in iron ore mine in india. drilling and blasting practices in iron ore mine in india 124 views. the drill bits used in iron ore mine. the is the professional mining equipments manufacturer in the world, located in china, india, along with other asian drilling iron ore mines for blasting mining equipment drilling ...

    Get Price
  • Underground Mining Services in India

    2019-4-18 · Drilling and Blasting method gives good progress in favourable rock mass condition. Compatibility and feasibility to any sudden required alteration in dimension of excavation profile and/or geological constraints also adds to the popularity and suitability of the drilling and blasting method over other methods of excavation [1, 2].

    Get Price
  • Tophammer Drilling Tools | Drill String Services |

    Advanced blasting technology and clever blast design can improve the utilisation of the drilling fleet and reduce capital and operating costs without compromising productivity. Matching explosive energy to geology enables expanded patterns without affecting fragmentation.

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  • Underground Mining - Mining Consultant India

    UNDERGROUND MINING SOLUTIONS At Orica, we’re focused on developing long term partnerships which ... Drilling, Charging & Blasting Productivity Water Stopping Secondary Blasting Improve Advance & Cycle Times ... China, Korea, Japan, India and Thailand via the Port of Geraldton. The Scuddles underground mine uses the sub-level open stoping ...

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  • Blast Induced Damage to Surrounding Rock Mass in an ...

    2012-11-5 · Tunnelling in Rock by Drilling and Blasting presents the latest developments in the excavation of tunnels using the drilling and blasting method. Examples of work conducted throughout the world including the Indian sub-continent, Australia, and Sweden amongst others are discussed. These tunnel projects serve to illustrate the challenges and i

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  • Drilling, Charging and Blasting Productivity

    2013-9-5 · Systematical deep hole (16–30 m) blasting has been successfully carried out from underground split galleries in BG panels. A study of drilling and blasting parameters, gas hazards, strata behaviour and ground vibration was undertaken as part of a …

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