Bored piers and conventional bored piling across the Central Coast, Newcastle and Mid-North Coast. See our Avoca Beach retaining-wall project.
Our Central Coast bored-piling work includes retaining-wall piles at Avoca Beach. Other projects include conventional bored piling alongside existing structures and for a crane base. Equipment selection and site sequencing are considered against the project requirements.
A staged retaining wall package on a site under 6 m wide.
The site
A site less than 6 m wide, steep ground, shallow neighbouring foundations and hard rock constrained access and construction.
Our approach
Sequenced the walls and foundation piles, coordinated excavator positions, used a masted rig where access allowed and formed a ramp for the lowest stage.
Foundation and wall piles for a headland renovation.
The site
A complex headland renovation required foundation piles, a garage shoring wall and later a crane base. Ground and rock conditions differed from those anticipated.
Our approach
Discussed the encountered conditions with the engineers and adjusted some of the wall piles to a soldier-pile arrangement. The Heavies later completed additional crane-base and stair foundation piling.
Cased bored abutment piles through fractured mudstone.
The site
Highly fractured mudstone, with reported core loss of up to 40%, complicated the abutment works. Piles at the second abutment needed to extend up to 4 m deeper than designed.
Our approach
Used the Mait HR75 to install 800 mm pile casings to rock-socket depth, extended reinforcement cages with specialist on-site welding, and completed the piles using tremie concrete placement.
Construction partner: ACG – Alliance Construction Group.
Builders and engineers use both terms for drilled, cast-in-place foundation elements. A hole is drilled, reinforcement is installed and concrete is placed to form the pile or pier. The engineer’s design and the ground conditions determine the required diameter, depth and construction method.
Bored piling on the Central Coast
At Avoca Beach, our scope included 450 mm and 600 mm reinforced concrete bored piles for contiguous and soldier-pile retaining walls. Working platforms were a key part of delivering the work on steep ground.
Our published capability extends to 1,800 mm diameter and 40 m depth. Our equipment includes excavator-mounted drilling tools and dedicated Kelly-bar rigs. Discuss the ground, access and working platform early.
