Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
Structural Control Over Fragmentation: Characterization and Case Studies
By Chantale Doucet, Mario Paventi, Malcolm Scoble, Yves Lizotte
Laboratory studies in homogeneous material indicate that the area of new surfaces created by blasting is proportional to the energy imparted to the material. Field studies, however, show that fragment
Jan 1, 1994
-
A non-toxic, safe and reliable non-primary-explosives detonator
By Marco Antonio Falquete
Conventional detonators and blasting caps make use, as igniters, of flame-shock-, andfriction-sensitive primary explosives, such as lead azide, lead styphnate, mercury fulminate, etc, most of them sev
Jan 1, 2007
-
Responding to Regulatory Permitting Requirements and Notices of Deficiencies for Open Burning/Open Detonation (OB/OD) Treatment Facilities
By M Dandeneau, P I. Rajic, K D. Murphy, M B. Johnson, T J. Tope
"Manufacturers and users of energetic material [i.e., propellants, explosives, pyrotechnics (PEP)] generate unserviceable, obsolete, off-specification, and damaged items that are characterized as reac
Jan 1, 1995
-
An Assessment of Ore Waste and Dilution Resulting From Buffer/Choke Blasting in Surface Gold Mines
By Dale S. Preece, J Paul Tidman, Stephen H. Chung
A discrete element computer program named DMC_BLAST (Distinct Motion Code) has been under development since 1987 for modeling rock blasting (Preece & Taylor, 1989). This program employs explicit time
Jan 1, 1998
-
Modeling Coal Seam Damage in Cast Blasting
By Dale S. Preece, Stephen H. Chung
"A discrete element computer program named DMC_BLAST (Distinct Motion Code) has been underdevelopment since 1987 for modeling rock blasting (Preece & Taylor, 1989). This program employsexplicit time i
Jan 1, 1999
-
Current Advances in DMC_BLAST Modeling
By Dale Preece, Stephen Chung, D. Scott Scovira
The DMC_BLAST (Distinct Motion Code) has been developed to model rock motion and displacement during the gas expansion phase after the detonation of an explosive in a borehole. Recently, a designated
Jan 1, 2000
-
2000 Blasting in the New Millenium - Moving Forward
By Steve Dillingham
With the millennium fever all but faded, we look to a new century filled with awe and excitement. We step forward in time, marveling over the achievements of the 20th century and wondering what the ne
Jan 1, 2002
-
When Open Pit Operations Intersect Old Underground Workings
By Joe Sr Strobbe
In 1933 the Cobre Mining Company re-opened the 32-year-old UV Industry Mine, which is located in a scenic canyon near Silver City, New Mexico. The site location is shown in Figure 1. Current mineral e
Jan 1, 1998
-
Peak Particle Velocity versus Gravitational Acceleration as a Stability Criterion for Earth Retaining Walls Subjected to Production Blast Vibrations
By Dale Preece, Joergen Pilz, Zavis Zavodni
An overland conveyor was constructed at a surface coal mine to reduce the truck haul distance and make the operation more efficient. An important element in this system is a truck dump facility to tra
Jan 1, 2010
-
Discrete Element Modeling of Rock Blasting in Benches, with Joints and Bedding Planes - Initial Development (Geomechanics Department, 6117 Sandia National Laboratories)
By Dale S. Preece
A Discrete element computer program named DMC (Distinct Motion Code) has been developed for modeling rock blasting. This program employs explicit time integration and uses spherical or cylindrical ele
Jan 1, 1995
-
Optimization of Fragmentation in benches for Dragline deployed in large opencast coal mines- A case study of Indian mine
By Rajesh Sonkar, Sanjeev Kumar
The deployment of Dragline machines in opencast coal projects involves huge capital expenditure as well as operating costs. The mine operators always endeavor to ensure smooth excavation of material b
Jan 1, 2011
-
Analysis of Measurements Results of the Ground Vibration Induced By Blasting During the Tunneling for Istanbul Subway in Turkey
By Gungor Tuncer, Ali Kahriman, Abdulkadir Karadogan, Simav Bargu, Savas Gorgun, Derya Kucukbrtem, Esat Tansev
Although many research studies had been carried out in the past in order to eliminate environmental issues produced from blasting unfortunately a general approach or formula has not been established y
Jan 1, 2002
-
A New Type of Nonelectric Detonators
By Hans Florin
This paper describes the modification of a nonelectric detonator which is ignited by a signal tubing. The heart of the new detonator lies in a so-called ignition transmitting element. The construction
Jan 1, 1988
-
Emulsion Comparison Tests
By R W. Givens
Comparison tests were performed on 6 emulsion concentrates, 3 microballoon sensitized emulsion concentrates, and 2 water gel concentrates from 8 different sources with ANFO used as a control standard.
Jan 1, 1990
-
Field Experience with New Methods of Electric Shotfiring
By M J. Ball, R Watt
ICI has developed a new electrical shotfiring system which has markedly improved safety features and operational advantages over existing initiating systems. The development of the 'Magnadet' Electric
Jan 1, 1982
-
Blasting Technique
By N K. Jain
"The idea of writing this article is to give correct picture about the technique in blastingindustries based on the safety aspect, basically without effecting the results thereof.Like many other scien
Jan 1, 1993
-
Capture of a Groundwater Contamination Plume in Fractured Bedrock by an Artificially Produced Fracture Zone Created Through Controlled Blasting
By Robert J. Nothnagle, Kristen Franz Begor, Rodney W. Sutch
Recovery of contaminated groundwater in a fractured bedrock system presents some unique problems. Typically, the most common problem occurs from the inability to adequately characterize the discrete f
Jan 1, 1988
-
Marine Blasting on the New Panama Canal, Pacific Entrance
By Paulo Couceiro, Manuel Lopez Cano, Carlos Rodgriguez Calvo
Apart from its difficult execution, underwater blasting is one of the most critical operations of the blasting techniques; mainly because of the ground vibrations - normally associated with low freque
Jan 1, 2011
-
Construction Blasting in Central Oregon
By Paul Schmiesing, Matt Higgins
Central Oregon is a fast growing resort community centered in Bend, Oregon. Bend is bordered by the Cascade Mountains to the west and the high dessert to the east. Central Oregon is blanketed with lav
Jan 1, 2000
-
Critical Blast Design of a New York City Shaft and It's Effect on Vibration Control
By Eric Reale
The New York City Department of Environmental Protection (DEP) is currently building City Water Tunnel #3 beneath the city. The purpose of this tunnel is to improve water distribution to the city and
Jan 1, 1989