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Urban Tunneling for the MWRA's Boston Harbor Clean Up
By Gordon C. Petersen, Gary A. Almeraris
This paper describes the controlled blasting techniques required to mine a rock tunnel section of a main interceptor located in the Boston Metropolitan area. The 3m (10 ft) x 2.8m (9.25 ft) horseshoe
Jan 1, 1991
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The Effect of Charge Mass and Delay Timing on Airblast Overpressure
By Adrian Moore, Dominic Hooton, Alan Richards
Significant factors affecting airblast overpressure (AOP) emissions include charge mass per delay, distance from the blast site, burden, stemming height, and delay timing, topographic shielding, and m
Jan 21, 2025
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Journal: Blastserve A Discussion Forum for ISEE Members - Vibration Criteria for Blasting Near Fish in Pools
Dear All, I am looking for information about vibrations and effects on fish in pools. A tunnel blast is planned to be carried out as close as 300 meters to a freshwater fish growing plant. What is th
Jan 1, 2012
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Moving 50’(15.3m) of Burden with a 4½” (115mm) Hole
By Keith Henderson
An open pit quarry operation in West Central Illinois provided a challenging proposition regarding the removal of a rock wall that once separated two pits, but was now in the middle of the north wall
Jan 1, 2012
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Northern Link - Tunnel Blasting In Environmentally Sensitive Surroundings - Using NCVIB
By Donald Jonson
Stockholm’s Northern Link, currently Europe’s largest urban road tunnel project, will be about 5 km long from west to east. Running through two separate, mostly parallel tunnels, each with 2-4 lanes,
Jan 1, 2009
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How Lightning Detection Has Influenced AMAX Coal's Delta Mine
By Steve Kane
Lightning is a very real problem in the surface mining industry. Today, as adverse market conditions continue to influence the surface coal industry, it has become necessary that all functions of the
Jan 1, 1992
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Connecticut's "Call Before You Dig" System: New Laws and Regulations
By Stephen G. Rieben
Almost everyone has at least heard of the two one-call systems which serve New England. They are "Call Before You Dig", which covers Connecticut, and "Dig Safe", which covers the remaining five New En
Jan 1, 1990
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Review and Learnings from a Surface Quarry Rockfall Incident
By Andrew Moore
It has long been common practice to conduct drilling and blasting operations at surface quarries in the Midwest in close proximity to near-vertical highwalls. The main reasons for such an approach, an
Feb 6, 2023
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Blasting Improvements by Using Most Active Rock Variations on Blast
By Alain Blanchier, Anne Charline Sauvage
Rock mass variations have a huge influence on explosives efficiency and on blasting results. Numerous blasting improvements could be gained by taking into account rock mass and its variations. However
Jan 1, 2004
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Rock-to-Sensor Transmissibility of Vibrations
By L. M. Lopez, J. A. Sanchidrian
This work investigates the performance of some of the measurement techniques used in vibrations from blasting monitoring. Two tri-axial geophones with cases of different size, shape and mass were test
Jan 1, 2014
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Kuz-Ram Equation Analysis: A Reparametrization for the Peruvian Case
By Dennys Huaman, Carlos Rojas
Using the Levenberg-Marquardt algorithm to reparametrize the Kuz-Ram original model equation of the mean characteristic size and assess the errors of both models and their comparisson using different
Feb 1, 2020
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Perimeter Blasting with the ANFO-Spoon Technique
By Larry Ng, Keith McDonald
The benefits of controlled blasting techniques have gained increasing recognition by the mining industry in recent years. The utilization of an effective controlled blasting programme can result in a
Jan 1, 1994
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Effect of Presplit Perimeter Control in an Underground Cut and Fill Mine
By David Porter, Nathan Rouse
The implementation of presplit perimeter control in underground mining as a method to decrease dilution yields positive benefits throughout the current and future mining cycles. A case study to unders
Feb 6, 2023
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Productive Partnership – Advanced Blasting Technology at Newlands Coal Mine
By Les Willan, Chris Batten, Matt Sparkes
In late 2008 Xstrata Newlands Coal Mine in Central Queensland and Orica Mining Services engaged in discussion to investigate methodologies to change their current mining practices and overcome the iss
Jan 1, 2010
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Blasting-Concern for Neighbors and Operators
By Kris Shukla
Noise and vibration produced by blasting generate curiosity and concern from neighbors. Experiments conducted in Sweden, Canada and U.S.A. have established that fine cracks in the plaster--the weakest
Jan 1, 1978
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Geotechnical Slope Remediation Via RC-drilling And “Controlled Slope Failure Blasting
By Tyler Acorn
In December of 2009 an estimated one million ton slope failure activated a 10 million ton mass impacting use of the main ramp system in the Newmont Gold Quarry pit. The failure left behind a 400 foot
Jan 1, 2011
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Blasting Specifications and Guidelines for Protective and High-Profile Blasting
By Brian Lewis, Reinhold Daykin Schnell
Blasting specifications and guidelines are very important aspects of detailed project specifications covering any scope of work (SOW) that involves explosives and blasting procedures. A lot of larger
Feb 6, 2023
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Considerations in Pre-Split Blasting for Mines and Quarries
By J Lyall Workman, Peter N. Calder
"Presplitting is a technique mines and quarries may use to produce high quality final pitwalls. Damage from backbreak can be minimized, thereby insuring the final pit walls standat the designed angle.
Jan 1, 1993
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Improving Blast Preformance with High Density Toe Loads
By John Floyd, Larry Wardrip
A series of tests were conducted to evaluate the performance of a high density, high velocity cartridged explosive. The tests included two production blasts in a limestone quarry and two production bl
Jan 1, 2002
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A Long Round Test in Conventional Room and Pillar Mining
By Thomas Barkley
Mining tradition holds that a parallel round underground can not be any deeper than it’s smallest face dimension. ln other words, a mine using a 12’ (3.7 m) high by 24’ (7.3 m) wide room and pillar mi
Jan 1, 2000