When blasting is opted as one of the methods for rock excavation to achieve the desired platform levels of the development, the use of explosives in rock blasting may generate fly rocks and they tend to travel distances causing fatalities and property damage. In addition, ground vibration and airblast from blasting could also pose hazards to both workers and the public.
Target
Well-planned blasting work to minimise safety risks to on-site workers and structures as well as neighbouring occupants and building structures.
Standard Operating Procedures
13.1 Blasting operations shall be conducted by a shotfirer, certified and qualified by JMG, and adhere to the Blasting Design Report prepared by a Professional Engineer.
13.2 Before a blast, the blasting contractor shall ensure all roads and approaches to and from the blasting area are guarded or barricaded sufficiently to prevent any persons from entering the area.
13.3 The blasting contractor must ensure that no charge is fired until sufficient audible and visual warning signals are given to all persons in or near an area where the blast may create a hazard.
13.4 Ensure all persons (employee or public) are outside of the danger zone during blasting work.
13.5 Obtain approval for blasting activities from JMG and explosive permits / licenses from PDRM.
13.6 Carry out blasting activities at noon and prohibit blasting on Sundays and public holidays.
13.7 Restrict blasting operations to within the approved project site.
13.8 Prohibit secondary blasting to break down large boulders to avoid fly rocks hazards to the surroundings.
13.9 Use wire mesh, tyre (blasting mat), earth piles and wet sand to prevent fly rock.
13.10 Strictly practice and adhere to blasting procedures and instructions.
13.11 Erect a signboard to inform nearby residents, inhabitants of workers’ quarters and villagers about the blasting activity and schedule.
13.12 Submit the air blast and vibration monitoring report to JMG
Plate 37: Examples of signboards to inform the community of blasting activities.