Blasting Advisory

Bringing Expertise & Precision to Exploration, Estimation & Excavation

 

Blasting being a primary operation in mining, quarrying and construction work, needs to be conducted as safely as possible. As it involves the use of explosives, it can result in the loss of men, material and money if not done rightly. Recent studies also show that fragmentation of the mine during blasting accounts for only 20-30% of the total amount of explosive energy used while the rest of the energy is wasted in the form of ground vibrations, flyrock and air-overpressure.

Why do you need blasting advisory?

The main of any blasting project should be to minimise the production of non-useful energy. This is only possible with a well-formulated 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.

Another major goal of blasting operation is a quality output in the most economical way. For example, using high quality and uniformly sized explosives might seem expensive at the start, but will greatly reduce costs in the end.

A guide to the right blasting plan will not only help you achieve the desired outcome but also save 20% on overall costs. To this end, there is no better guide than Uttam Blastech, with over 25 years of experience. From helping clients plan their blasting in a public area to supervising blasting in extremely challenging geographical areas, Uttam Blastech will leave no stone unturned for a safe and cost-effective blast.

360-degree services for a Safe and Cost-Effective Blast

Blast design 

Fragmentation analysis

Ground vibration and noise measurement

Explosive quality check

Blast performance optimisation

Environmental Impact Assessment (EIA) 

Uttam Blastech helped NTPC blast right next to a Power Producing Turbine

Case Study 1

Client 

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.

 

Read to know how Uttam Blastech saved DLF from all litigations during a blasting project in an area with historic properties (sensitive to low-level vibrations)

Case Study 2

Client 

DLF Laing O Rourke (India) Ltd

Project and Constraint:

Blast 300,000 m³ of rock in a location which was 450m from the Hyderabad Police Commissioner’s office, 1 km from the Secretariat and in close proximity to heritage structures. DLF approached Uttam Blastech to conduct a pre-blast survey and help conduct the entire blasting operation

Our Approach:

Create documentation that can stand as evidence in a legal tangle

Third-party monitoring of all the blasts to act as evidence in case of litigation

Ensure that the contract adheres to prescribed vibration limits

Final Outcome:

DLF safely blasted and excavated 250,000 m³ of rock from the site.

 


Alexa Seleno
@alexaseleno