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Rock Characterization, Blasting, and Vibration Control Program in Southwest Florida
By H. Frank Murati, D. S. "Sax" Saxena
The presence of a mobile home park with drinking water wells created a unique geoenvironmental deterrent to the developer’s plans for effective rock blasting, excavation, and development of water mana
Jan 1, 2002
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Regulating the Velocity of Detonation of ANFO Utilizing Blends of Non-Explosive Materials
By Michael E. Curtis
This paper outlines a study performed to analyze the advantages of utilizing a blasting agent with a velocity of detonation that is 1.3 to 1.4 times the P-wave velocity of sedimentary shales and sands
Jan 1, 1997
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Damage Levels for Reinforced Concrete Columns Subject to Internal Explosive Charges
By I. Petropouleas, J. Croll, R. Bassett
A programme of tests on controlled internal explosions to a class of circular reinforced concrete columns, has allowed the relationships between the blast energy and the extent of local damage to be u
Jan 1, 2006
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Numerical Modeling of Oil Shale Fragmentation Experiments
By J S. Kuszmaul
The economic development of modified in situ oil shale retorting will benefit from the ability to design a blasting scheme that creates a rubble bed of uniform permeability. Preparing such a design de
Jan 1, 1985
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Technical Review of Safe Blasting Design at Limited Distance
By Agus Setiabudi
East Pit Wira II Project in South Kalimantan, Indonesia with a radius of <500 meters (1,640 ft) from residential has about 454,168 tonnes of coal reserves, with a total remaining reserves of 3,369,383
Jan 1, 2014
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Stemming Selection for Large-Diameter Blastholes
By Jack Eloranta
Proper selection of stemming has a profound effect on blast performance. This paper describes several methods of evaluating stemming performance in 16-inch blastholes. Tests are done on stemming rangi
Jan 1, 1994
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Controlled Sequential Blasting
By E Emery Jr Gray
A need for more delay periods other than those normally manufactured throughout the explosives industry rarely occurs. This paper will discuss one such incident from an analytical view through practic
Jan 1, 1976
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Geologic Data for Blasting at the Minntac Mine
By John Eloranta
This paper is a case study showing the assembly of available rock property parameters for the purpose of blast design. Blast optimization now includes subsequent milling and requires a full knowledge
Jan 1, 1996
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Blasting Procedures at Woodville Lime and Chemical Company
By Calvin J. Konya
The Woodville Lime and Chemical Company Limestone Quarry is located in Sandusky County, Ohio. Fifty years ago, when quarrying began, it was situated approximately two miles from the town of Woodville.
Jan 1, 1977
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Progressive Cavity Pump Safety Improvement
By Alfred Osborne
Progressive cavity type pumps are widely used by commercial explosive manufacturers for pumping water gel, emulsion and emulsion / ANFO blend explosives. Tests by explosives companies and investigatio
Jan 1, 2002
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Application of Conical Shaped Charges for Dimensional Stones Blasting
By Sung Su, Jui-Lin Chang
A new technique of dimensional stones blasting for achieving directional rock cutting by conical shaped charges is proposed in this study. This technique has many advantages like precisely controlling
Jan 1, 2006
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Transient Data Analysis Procedure for Reducing Blast-Induced Ground and House Vibrations
By O E. Crenwelge
Seismograph measurements are usually made near blasting operations solely for the purpose of monitoring compliance with governmental regulations. However, recordings of seismograph signals have far gr
Jan 1, 1991
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State-of-the-Art Explosive Void Measurement System
By J P. F Warkentin, A W. Bauer
Recently, significant improvements have been made in both blast design methods and blasting accessories. The introduction of extremely accurate blast delays now allows proper implementation of advance
Jan 1, 1991
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Controlled Blasting at the Hanging Lake Tunnels
By Gordon F. Revey
Hanging Lake Joint Venture recently excavated two conventional 42 foot diameter highway tunnels in the difficult ground conditions of Glenwood Canyon, Colorado. This paper outlines the type and succes
Jan 1, 1991
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Selection of Powder Factor in Large Diameter Blastholes (fd85c28b-31b4-4c7a-b833-27f2a5d736a0)
By Jack Eloranta
This paper documents the relationship between material handling and processing costs compared to blasting cost. The old adage, "The cheapest crushing is done in the pit", appears accurate in this case
Jan 1, 1995
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Vibration and Ground Rupture Criteria for Buried Pipelines
By Lewis L. Oriard
This paper describes the process of developing blasting specifications for 850 miles of new pipe trench running parallel to an existing high-pressure gas pipeline, often with as little as 14 ft to the
Jan 1, 1994
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Investigation of Impulse Delivered To a Target Plate From a Buried Explosive
By Leslie Taylor, W. Fourney, Uli Leiste
This paper presents the results from a series of tests conducted to investigate the total vertical impulse delivered to a target plate by a buried explosive charge. The tests were conducted at a very
Jan 1, 2009
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The Swedish Approach to Contour Blasting
By R Holmberg, P A. Persson
Recent developments in the methods of measuring rock motion close to the contour at the moment of blasting have given an improved understanding of the extent of rock damage caused by different charge
Jan 1, 1978
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Three Laboratory Tests for Explosive Ruggedness
By Michael Wieland
Three laboratory tests were developed for rating the wave-impact ruggedness of cap-sensitive explosives that are used for blasting in underground coal mines. Destructible pipe fixtures, called simulat
Jan 1, 1996
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Supression of Blast Pressure and Noise from Implosive Type Connectors
By Ettore Contestabile, Cameron Thomas
Implosive-type electrical/mechanical connectors such as XECONEX have been used extensively for joining electrical transmission lines. This implosive action of explosives has also been applied to other
Jan 1, 1995