Diamond core drilling 275mm diameter carried out by Piletec’s multi skilled team at Tottenham North Curve to allow access through 6m of masonry before auger drilling to 55m.
Diamond Drilling for Civils & Infrastructure Projects
Based in Yorkshire. Serving the UK.
We deliver precision diamond drilling for civils, utilities, rail and highways contractors – either as a standalone enabling works package or fully integrated alongside our piling, ground anchor and remediation operations. From live rail possessions to night-time highway diversions and congested utility corridors, our team operates with minimal disruption to surrounding infrastructure and always to site shutdown or programme-critical constraints.
Why Choose Piletec?
- Rapid mobilisation from our Rotherham depot to the rest of the UK
- Perfect for duct installation, structural tie-ins, utility diversions and trial hole investigations
- Experienced in working under Network Rail, Amey, BAM Nuttall, Amco Giffen and local authority frameworks
Drilling Solutions
Diamond drilling is a precise, non-percussive method used to create clean, accurate holes in a wide range of materials. This technique preserves the structural integrity of surrounding surfaces, making it ideal for sensitive environments. Whether you require diamond drilling as a self-delivered package — or need it embedded seamlessly within a wider piling, retaining or geotechnical project — our team slot directly into your subcontract package with full HSQE documentation and no operational friction.
TYPES OF Diamond Drilling
Diamond Core Drilling for Bridge Strengthening and Sampling
A proven non-percussive technique for reinforcing bridge piers and wing walls involves diamond core drilling through brickwork or concrete structures, followed by the use of continuous threaded steel casings to extend the bore through underlying infill materials such as clay, chalk, or railway ballast.
This method offers a key advantage: it allows the borehole to be temporarily or permanently sleeved, maintaining stability until the tie bar is securely installed.The use of casings ensures alignment and reduces the risk of deflection critical factors when precision is essential.
Piletec has adopted this technique specifically for tie bar installations, where accuracy and structural integrity are paramount. Additionally, it is employed for core sampling through bridge piers and abutments, providing reliable access for material analysis without compromising the surrounding structure.
18-metre long openings temporarily sleeved with 75mm casings an essential step in maintaining borehole integrity prior installation of tie-bars.
Diamond stitch drilling is when you link single holes together to form a linear line. The holes are normally lapped by a small margin in order to maximise on the length per hole ratio to form the given line.
This method is often used on large openings to accommodate the corners between the longer saw cuts and small openings where saw cutting is not practically viable to form the opening or where access prohibits the saw cutting equipment to be utilised.
Diamond stitch drilling can also be used to form slots which is useful when forming door heads and lintel bearings, or even needle holes to accommodate the installation of temporary support prior to forming openings within load bearing structures.
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