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Calculation of Rock Motion During Bench Blasting
By Elaine Gorham-Bergeron
CAROM is a distinct element, dynamic code developed at Sandia National Laboratories to calculate the motion of rock fragments during blasting.[1] It has recently been improved to incorporate a mechani
Jan 1, 1987
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Prediction of Blast Fragmentation of Underground Stopes for In Situ Leaching
By Mark S. Stagg, Rolfe E. Otterness, Farrokh Djahanguiri
The U.S. Bureau of Mines (USBM) evaluated empirical equations that predict fragmentation from underground stope rounds. Controlled blasting is necessary for creating leaching stopes that maximize the
Jan 1, 1994
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The Measurement of Detonation Waves in Composite Explosives
By C De La Cruz
The use of a thin-film piezoelectric stress gauge to determine the pressure profile in a detonating explosive has been demonstrated. These PVDF gauges have measured, in the borehole, the Chapman-Jouge
Jan 1, 1997
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An Approach to Incorporate Rock Fabric Information in Blast Fragmentation Investigations
By Dirk van Zyl
Rock fabric information is often available from drill hole information and bench face mapping. An approach is presented to predict fragment size distribution of blasted material from this information
Jan 1, 1986
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The Chemical Kiloton Experiment the Utilization of 50/50 Heavy ANFO at the Nevada Test Site
By Don Larson, Gordon Coleman
The United States Department of Energy, through its contractor Lawrence Livermore National Laboratory, has entered into a contract with Alpha-IRECO, Inc. for the emplacement of approximately 2.9 milli
Jan 1, 1994
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Application of Cross-Correlation and Autocorrelation to Far-Field Digital Seismic Data for Determination of Delay Timing
By Gregory P. Lorsbach
Significant information about any blast is contained within the seismic signal generated by the blast. In this study, standard digital signal processing techniques are utilized to extract source param
Jan 1, 1991
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Careful Blasting (125,000 cu.m) for a Shopping Centre in Downtown Helsinki
By R Vuolio, B A. Jonsson
In the center of Helsinki - capital of Finland - extensive blasting operations were carried out during the years 1982 - 84. At the corner of the streets Mannerheimintie and Simonkatu - in the Forum bl
Jan 1, 1985
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The Blasting Contractor as an Insurance Risk
By Donald C. Clark
The Blasting Contractor as an Insurance Risk involves a discussion of changing times in the insurance market and changing methods of operation in the construction industry. Since the advent of Interna
Jan 1, 1977
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Investigations of Shock Tunnel Dynamics and Energy Realization
By Joshua Hoffman, Braden Lusk, Perry Kyle
With the advent of any new technology comes the necessity of fully understanding the mechanics of that technology. The Shock Tunnel is one such technology that provides a cost effective means of simul
Jan 1, 2009
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Prototype of MEMS-based Accelerometric Network for Continuous Monitoring of Blasting Efficiency and Seismic Velocities
By M. Szumny, P. Mertuszka, K. Fuławka
Mining-induced seismicity is one of the adverse side effects of mining with the use of explosives at great depths. Disturbance of the primary stress state by the development of the network of excavati
Jan 1, 2024
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Bridge Demolition in an Environmentally Sensitive Area
By Ron J. Elliott, Corry Coumans
The following is a detailed description of the blasting procedures used in the successful demolition of the Stave River bridge, Mission, British Columbia, Canada. This highway bridge spans a highly se
Jan 1, 1998
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Near-Field Vibration Monitoring
By R Yang, P D. Katsabanis, W F. Bawden
Understanding the mechanisms which are taking place during the propagation of a stress wave generated by an explosive charge is of high importance in the detection, characterization and prediction of
Jan 1, 1993
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Blasting at Operating International Airport
By Earl C. Hutchison, John Loviza
At the Metropolitan Nashville International Airport, with its more than 600 scheduled daily flights from American Airlines hub operations, other scheduled airline flights, Tennessee Air National Guard
Jan 1, 1992
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An Introduction to the Halo Effect
By Paul Worsey, Seokbin Lim
In many high explosive applications, the explosives are covered or clad by a metal. This metal cover may serve a variety of purposes including: 1) to protect and prevent the disturbing or misshaping o
Jan 1, 2005
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Facing the Drilling and Blasting Difficulties at Helwan Quarry, Egypt
By M. Khaled, K. Abdel Rahman, M. Khattab
Helwan limestone quarry is located at a distance of 35 km (21.7 miles) to the south of Cairo downtown. Drilling and blasting operations are used to extract the limestone for the Helwan Cement Company
Jan 1, 2008
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The Waiting Time Recovery Test
By John T. Aler
The U.S. Bureau of Mines has been studying the problem of why explosives detonate weakly or misfire during blasting in underground coal mines. Cross-borehole shock wave interaction has been identified
Jan 1, 1991
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Enhance Blast Performance by Using PPAN Blended With Emulsion Explosives
By Sanjay Sengar, Nabiullah Pingua, Saurabh Sahay
In India, more than 80 percent of the total of 557 million metric ton coal production comes from open-cast mines involving large overburden removal with average 1:3.5 stripping ratio which is going to
Jan 1, 2014
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Detection of Plastic Explosives
By Petr Mostak, Miroslav Horacek, Miroslav Stancl
Detection of plastic explosives is an important task in the security measures against criminal misuses of this type of explosive. Particles and vapour detectors are basic instruments in this detection
Jan 1, 2001
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The International Development of Dangerous Goods Transport Regulations
By Ben Barrett
Dangerous goods, known as hazardous materials in the USA, are subject to special controls during transport to ensure the safety of the public. Dangerous goods are divided into nine classes, and Class
Jan 1, 2010
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Wight Pit High Grade Wall Slash
By Art Frye, Lee Pratt, Gaichang Zhao, Greg Newman
This paper will discuss the Wight Pit wall slash at the Mount Polley open-pit copper-gold mine that scavenged a high grade block of ore from two double-benches of the pit wall. The Wight Pit orebody,
Jan 1, 2011