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Productivity Increases Through Pattern Expansion With Ultra-High
By Miguel Humpire Huamani, Gustavo Huerta Valer, Jorge C. Cárdenas Miranda
As part of the continuous improvement and increase productivity to achieve the mining and extraction plan of a low-grade open pit copper operation, alternatives are required to expand the blast patter
Feb 6, 2023
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Drill Accuracy
By Jerald E. Harris
"Often taken for granted, drill accuracy plays a major role in the relative success or failure of a blast.Expensive technological advances in equipment capabilities, drilling tools, communications, ex
Jan 1, 1999
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Drilling and Blasting Techniques for Sinking a Well in a Water Reservoir-A Case Study for Underwater Controlled Blasting Methodology and Monitoring
By Deepesh Yadav, B. S. Choudhary
Underwater drilling and blasting is conducted for deepening of sea channels for port berths, lake or reservoirs for water supply etc. so that rock dredging becomes easier. During this process there ar
Jan 1, 2018
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Back to School on Construction Blasting, Rules of Thumb Revisited
By Jerry Wallace
Construction of a new grammar school required blasting within three meters of the existing school. Due to changes not anticipated at time of bid opening, blasting had to take place while approximately
Jan 1, 2001
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SmokeFCM: Segmentation of Quarry Blast Smoke Plumes using Self-Adaptive Weighted Fuzzy C-Means
By E. Lentilucci, A. Dey, X. Liu, A. Datta, S. Ghosh
The segmentation of quarry blast smoke plumes is a crucial research area that has the potential to enhance safety, environmental monitoring, object detection, and regulatory compliance in the mining i
Jan 1, 2024
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Evaluation Of Suitability Of Permitted Delay Detonators Vis-avis Their Delay Timing For Use In Underground Coal Mines
By Harsh Kumar Verma
Blasting off-the-solid is the most commonly used method during development of galleries in Bord and Pillar method of underground coal mining. In this method, only P5 explosives are used with permitted
Jan 1, 2008
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An Experimental Method of Determining Explosive Equivalency When Scaled Distance Approaches Zero
By R. Hazael, R. Alford, R. Critchley
The ability to compare explosives is fundamental. Numerous methods are used and while simple conversion factors are often used, the use of TNT Equivalency (TNTe) is not a simple subject as explosives
Jan 1, 2024
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Fragmentation by Blasting through Precise Initiation: Full Scale Trials at the Aitik Copper Mine
By E Novikov, D Johansson, U Nyberg, A Beyglou, N Petropoulos
Fragmentation is an important factor for improving downstream processes in mine operations. Six trials have been conducted at the Aitik copper mine to investigate the effect of ultra-short inter-hole
Jan 1, 2014
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Use of Explosives to Protect a Native Westslope Cutthroat Trout Population In the South Fork Madison River, Montana
By Jeff Hiedeman, Clint Sestrich, Christopher Hyle
Westslope Cutthroat trout have declined in distribution and abundance across their range and currently occupy about 59% of their historic habitat. Due to hybridization with non-native species such as
Jan 1, 2011
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Aquarium Tests to Study the Detonation Behaviour of a Non-ideal Explosive.
By M. Araos
Non-ideal explosives can be characterised by different methods like velocity of detonation measurement, double pipe tests, underwater tests, aquarium tests, etc., to name a few. Both aquarium and velo
Jan 1, 2024
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Limestone Fragmentation Case Study Using Regular Rhythmic Timing
By Tristan Worsey, Jhon Silva
The paper discusses a limestone quarry case study that looks at change in fragmentation due to using different charge sequences when using the regular rhythmic timing method.
Feb 1, 2020
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Considerations in Blasting Influence on Grindability
By Panagiotis (Takis) Katsabanis, Lyall Workman, Jack Eloranta
The reduction of metallic ores to concentrate consumes a great deal of electrical energy. In the past two decades, a number of case studies have demonstrated a beneficial relationship between powder f
Jan 1, 2015
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Anti - Bomb Remote Controlled Inspection Robot
By G. Geremia, M. I. Serrano, L. Costa, Strohaecker
The advances in electronics and the development of more efficient algorithms, allow for the designing of more complex and sophisticated automated systems. The new devices include lighter, faster, reli
Jan 1, 2010
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How to Achieve 100% of Advance in Tunnel
By Alan Diaz Butron, Eng. Thierry Bernard
"In tunnel blasting the most challenging objective is definitively obtaining the maximum advanceassociated to a minimum overbreak. Achieving 100% of advance with no overbreak is the targetchallenge by
Jan 1, 2017
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Success Case: Technical and Operational Assurance of Blasting Near Neighboring Mine Structures
By Hector O. Romero, Paulo C. Fernández A, Claudio C. Gajardo
Phase 06 of the Los Bronces mine, currently under extraction for development, has the particularity of being close to the installations and buildings of a neighboring copper mine. Therefore, the blast
Jan 21, 2025
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Description of Damage Constitutive Model as Documented in Pronto3D Manual 3/89
By Billy J. Thorne
The damage model in PRONTO simulates the dynamic fracture behavior of brittle rock. It is based on work started by Kipp and Grady, [lg] continued by Taylor, Chcn and Kuszmaul [I91 [20] and recently.mo
Jan 1, 1989
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Analysis of Environmental Effects Induced by Cautious Blasting During the Excavation of Istanbul Subway Construction
By Ali Kahriman, Abdulkadir Karadogan, Alper Celtikci, Ahmet Varol, Ertugrul Kaya, Turgay Ozat
This paper presents analysis of environmental effects induced by cautious blasting during the construction of the Istanbul Subway 4 Levent - Ayazaga Darulsafaka Metro Tunnel Project carried out by the
Jan 1, 2011
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Blasting Conditions Couldn't be Worse
By John Atkinson, Steve Repola
This paper will describe two blasting plans that have been developed for American Aggregates' Marble Cliff Quarry located near Columbus, Ohio. Two different limestone formations are mined on different
Jan 1, 1993
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Blasting on Parliament Hill, Ottowa, Adjacent to Canada's No. 1 Heritage Building
By M V. Van Bers, A L. McAnuff, A Curic
During the Summer of 1997, rock excavation was carried out for construction of the Centre Block Underground Services building (CBUS) abutting the most historically significant structural complex in Ca
Jan 1, 1999
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Initial Testing of a Speed of Sound Test Apparatus for Powdered Explosives
By Barbara Rutter, Shonn Kevin McNeil
"This study discusses how a prototype was built to measure the sonic velocity in powdered explosives.The sonic velocity of an explosive is a benchmark to determine if the explosive deflagrates or deto
Jan 1, 2017