Percussion & DTH Drilling
Uttam Blastech manages and supervises percussion and DTH drilling programmes across mining, exploration, and infrastructure projects — ensuring every hole is drilled to specification, on schedule, and with the geological data your project depends on.
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Drill Right. Log Right. Decide Right.
Drilling is where subsurface knowledge becomes operational reality. Whether you are defining a Mineralogical composition, blast pattern, characterising rock for a feasibility study, or establishing geotechnical parameters for a foundation design, the accuracy and consistency of your drilling programme determines the quality of every decision that follows.
Poorly supervised drilling produces unreliable data, inconsistent hole geometry, and geological logs that cannot be trusted. Uttam Blastech manages the full drilling programme on your behalf — contractor selection, supervision, geological logging, and quality control — so your project team receives drilling data they can act on with confidence.
WHAT WE DO
Percussion
Drilling
Percussion drilling uses rapid impact force to break and remove rock — effective across a wide range of rock hardness and ideal for shallow to medium depth applications. Uttam Blastech deploys percussion drilling for geotechnical investigation, site characterisation, and blast hole programmes where speed and cost efficiency are priorities.
Down-The-Hole (DTH) Drilling
DTH drilling drives the hammer directly behind the drill bit — delivering impact energy efficiently at depth with minimal energy loss through the drill string. It is the preferred method for harder rock formations, deeper holes, and applications requiring consistent hole diameter and directional accuracy. Uttam Blastech manages DTH drilling programmes across open pit mining, quarry operations, mineral exploration, and infrastructure investigation.
Contractor Management & Supervision
Uttam Blastech conducts a post-construction geological assessment comparing current conditions against the pre-construction baseline — providing the independently verified documentation that regulators, insurers, and courts require.
Geological Logging & Data Collection
Every drill hole is geologically logged by Uttam Blastech’s team — recording lithology, rock quality, structural features, and groundwater observations in a systematic, standardised format. This data feeds directly into your geological model, geotechnical assessment, or blast design — depending on your programme objectives.
Drilling Programme Design
Before a single hole is drilled, Uttam Blastech designs your drilling programme — determining hole locations, depths, angles, and specifications based on your geological objectives, site constraints, and budget. A well-designed programme recovers maximum information from minimum drilling — reducing cost without compromising data quality.
Where It Applies
Open Pit Mining & Quarries
Blast hole drilling programmes in open pit and quarry operations require consistent hole geometry, accurate burden and spacing, and reliable geological logging to inform blast design. Poorly drilled blast holes are one of the most common and least recognised causes of fragmentation inconsistency and explosive underperformance.
Mineral Exploration
Exploration drilling defines your resource — and the quality of your geological logging determines the reliability of your resource estimate. Uttam Blastech’s supervised drilling programmes ensure your exploration data meets the standards required for reserve estimation and feasibility assessment.
Geotechnical Investigation for Infrastructure
Foundation design, slope stability assessment, and tunnel investigation all require drilling data that accurately represents subsurface conditions. Uttam Blastech manages geotechnical drilling programmes for roads, bridges, dams, and other infrastructure — ensuring data quality meets engineering and regulatory requirements.
Geophysical Investigation Programmes
Where geophysical surveys identify subsurface anomalies requiring physical verification, Uttam Blastech designs and manages targeted drilling programmes to ground-truth geophysical interpretations — integrating drill data with resistivity, GPR, and hydrogeological assessment results.
Speak to Our Drilling Team
Every drilling programme is different. Our team will assess your geological objectives, site constraints, and budget — and design a programme that recovers the data your project needs at the lowest cost per data point.