TBT Piling (Sabah) Sdn Bhd possesses’ the technical expertise, experienced resources and suitable machinery and equipment for the proper construction of cast-in-place bored foundation piling, conducted in accordance with ‘BS EN 1536:2010 – Execution of special geotechnical works – Bored piles’. This staged operation basically consists of boreholes excavated by rotary drill, insertion of pre-fabricated steel reinforcement cages (where required), and filling of resultant void with appropriate strength concrete.
The rotary drilling rigs may be equipped with various types and sizes of drilling accessories to enable a wide work scope to be undertaken for drilling in clays, sand layers, ground layers, and medium weathered rock, with a depth of bore of up to 55m for a maximum diameter of 3000mm. The drilling operation is highly efficient, powerful and incorporates advanced hydraulic pressure and electrical control systems for accurate and consistent boring. The piling rigs are convenient to transport and are ready to commence works almost immediately upon arrival at site.
Currently available rotary drilling rigs are capable of bored pile construction from 500mm dia. up to 3000mm dia., with appropriate supporting equipment and cranes for all associated activities including installation/ withdrawal of temporary casing, insertion of reinforcement, and placement of concrete via hopper and tremie pipe system.
For a more detailed description of the methods and procedures involved in cast-in-place bored piling construction, reference should be made to the TBT Piling (Sabah) Sdn Bhd standard method statement.
