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2020 / 2021 Edition

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Drilling & Blasting

01 February 2008 | Drilling & Blasting
A case study on the role of the stemming column on fragmentation in an overburden sandstone formationBy Dr Piyush Rai, A.K. Ranjan and Bhanwar Singh ChoudharyThe confinement provided by the stemming...
Tagged in: fragmentation
02 April 2007 | Drilling & Blasting
Principal structural engineer for Sandwell Metropolitan Borough Council (SMBC) David Rowe laughs when he hears the comments on the simplicity of quarrying. If quarrying is just creating and filling...
Tagged in: demolition
02 April 2007 | Drilling & Blasting
In many aggregate depots today you will find 20mm virgin quarried material sat next to 20mm recycled demolition waste. Focusing on a quarry blast at Ennstone’s Cloud Hill Quarry in...
01 September 2006 | Drilling & Blasting
A review of available solutionsThe authors, David Gibson, Ian Christie and Glyn Barnes, are business development manager, drilling and blasting manager and contracts manager, respectively, with...
01 September 2006 | Drilling & Blasting
Primary breaking with hydraulic hammers is not the panacea for all drill and blast problems. But, in the right application, it can be a viable economic and environmental alternative. Alan Matchett,...
01 September 2006 | Drilling & Blasting
Measuring blast-generated vibrationby Andy Maslin of Accudata LtdIt is said that in the 1960s quarry managers who received complaints about vibration from blasting would visit the complainant...
Tagged in: Accudata
01 September 2006 | Drilling & Blasting
Can they improve blasting and productivity?by Douglas A. Bartley, president of US-based DBA Consulting, Inc.Of the various products introduced to improve blast performance, flyrock control and...
01 September 2006 | Drilling & Blasting
Firing pattern and stemming column adjustments enhance blast performance at a limestone quarry in the PhilippinesBy Dr Piyush Rai, reader in mining engineering; Bhanwar Singh Choudhary, senior...
01 September 2006 | Drilling & Blasting
The trend in UK quarrying to outsource drilling and blasting to external suppliers is undoubtedly an opportunity for specialist contractors, but one which comes with a need to adopt both modern...
01 February 2006 | Drilling & Blasting
Atlas Copco to launch silenced drill rig for noise-sensitive sitesAtlas Copco are set to launch the world’s first ROC-series surface drill rig with a substantially reduced noise level, making it the...
Tagged in: Atlas Copcodrilling
01 February 2005 | Drilling & Blasting
Airblast generation, propagation and predictionThe authors, P.K. Singh, M. Klemenz and C. Niemann-Delius, are with the Institute of Mining Engineering III and the Institute of Technical Acoustics at...
01 February 2005 | Drilling & Blasting
A study of the impact of stiffness ratio on the fragmentation of sandstone strata in an opencast coal mineBy Dr Piyush Rai*, Abhai Kumar Ranjan** and B. Singh*** The ratio of bench height (H) to...
02 February 2004 | Drilling & Blasting
The effect of prill type and mixing techniqueby Rob Farnfield, technical services manager with Exchem Explosives and Andy Wetherelt, lecturer in mining engineering at Camborne School of Mines,...
Tagged in: Exchem
02 February 2004 | Drilling & Blasting
For efficient blasting practice the parameters incorporated in a blast design can be categorized as: rock parameters, explosive parameters and blast-design parameters. Blasting results are sensitive...
Tagged in: blast design
02 February 2004 | Drilling & Blasting
What the user should knowThe dictionary definition of calibration is: to determine by measurement or comparison with a standard, the correct value for each scale reading on a device1. Blast...
Tagged in: seismograph

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