KLCC L&M Tower - Foundation Piles XXLConstruction of the Actually Deepest Foundation Piles Ever Done by the Kelly Method in Kuala Lumpur / Malaysia-PPT Presentation

PPT Presentation

Pdf Summary

The presentation describes Bauer Malaysia’s construction of exceptionally deep Kelly-system foundation piles for the KLCC development in Kuala Lumpur. The works included 88 podium piles, 2.0 m in diameter, and 137 tower piles, 2.5 m in diameter, with depths of up to 150 m. Piles were designed to extend 2 m into competent rock, based on site investigation data and subsurface modelling. The project also included kingposts, diaphragm walls, and monitoring works.<br /><br />Drilling to this depth required careful equipment selection and planning. Bauer used a BG 72 rotary rig, capable of drilling to 150 m, and a five-section lockable Kelly. Rig stability, transport, mobilisation, and assembly were major considerations given the Kelly’s weight and the scale of the equipment.<br /><br />Key construction challenges included balancing drilling performance with pile verticality, which becomes harder to control as depth and diameter increase. Verticality was checked using Koden equipment and specified sonic caliper testing. Polymer support fluid was chosen over bentonite to avoid lengthy desanding and help meet the requirement to cast piles within 36 hours of drilling. Reinforcement cages were assembled from prefabricated sections, while concreting required high-volume, continuous supply and strict temperature and slump control. Kingposts, up to 33 m long and 84 tonnes, demanded careful lifting and alignment.<br /><br />The presentation emphasizes that deep-pile construction depends on specialist equipment, rigorous quality control, and coordinated planning to manage technical, logistical, and safety risks.

Keywords

Bauer Malaysia

KLCC development

Kelly-system foundation piles

deep foundation piles

rotary drilling

BG 72 rig

pile verticality

polymer support fluid

diaphragm walls

kingposts