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The effect of blast design in a controlled blasting

Gofar, Nurly (2010) The effect of blast design in a controlled blasting. In: 2nd ASIAHORCS Joint Symposium , 1-2 November 2010, Impiana KLCC Hotel, Kuala Lumpur.

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Official URL: https://www.researchgate.net/publication/301370095...

Abstract

The use of blasting operations in constructions nowadays is not rare anymore. The presence of hard materials during excavation works can disrupt the progress of the project since it cannot be excavated using the conventional excavators. Indirect excavation assessment is the best way to assess the best excavation method prior to the actual excavation works. Past experiences have shown that rippers are up to the mark for soft-rocks. Nevertheless, sometimes rippers fail to reach the desired productivity and will increase the cost and time of the project. As a solution, blasting operation is normally employed in most cases. The blasting operation must be monitored and controlled especially if it is carried out at sensitive area to avoid damage to property, buildings and injuries to people. , This study looks at 2 actual case studies of controlled blast at Seri Alam and Gelang Patah, Johor, Malaysia which have different geological material. Seri Alam is a granitic area and has a lot of boulders to be blasted while Gelang Patah site comprises of old alluvium. The results showed there are differences in the blast design especially on the spacing and burden at these sites in order to achieve the desired fragmentation and to control flyrock.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Controlled blast, Blast design, Excavation, Spacing, Burden, and Flyrock
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:24347
Deposited By: Mrs Liza Porijo
Deposited On:29 Aug 2012 04:46
Last Modified:02 Jul 2017 03:34

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