Flyrock is referred to the splinters of rock which are a byproduct of blasting operation. As flyrock has a lot of stored momentum, the moment it is released, it travels at a high velocity. Since the position of a fly rocks landing is unpredictable, it is the most damaging aspect of a blasting project, capable of causing sudden deaths or huge cracks in the surrounding structures.
The energy produced during blasting is mainly of two types. Useful energy which is used for rock-breaking and non-useful energy that produces flyrock and dust. The main aim of any blasting project should be to minimise the production of non-useful energy. This is only possible with a good blast design.
A good blast design should take into account many lesser-known factors like spacing between the feed holes, quality of detonators and flyrock. This is where Uttam Blastech, an expert in blasting advisory, will ensure the design for your blast not only meets project requirements and saves costs, but also has the safety of the neighbouring structures, men involved and your business at the crux of its design plan.
| Client Name : | NTPC |
| Project and Constraint: | When NTPC (Super Thermal Power Station) decided to expand their Super Thermal Unit at Ramagundam Super Thermal Power Station, the challenge was to excavate around 37,000 cubic meters of rock in a very critical area 20 metres away from their power-producing turbine which was also 6 metres away from a pump house that supplies water to the entire unit. |
| Our Approach: | – The first challenge was to convince about the efficacy and the safety of the proposed methodology. A seminar was arranged with the team to address their concerns where it was agreed that the initial blast would be conducted at the farthest place as a trial. – Another challenge was to obtain all the permissions required to use the explosives as the area was terrorist infested at that time. It took considerable time to convince the authorities about the measures taken to ensure the safekeeping of explosives. |
| Final Outcome: | Once everything was in place, the work was executed in 37 days i.e. blasting and excavating, 1000 cubic metres per day, in spite of all the hurdles and concerns. |
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