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List of products by author: D. Ek Leong Ong
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Assessment of Tunnelling Rock Spoils from Highly Weathered Lithology Using Rolling Friction Contact Models in...
Abstract: The assessment of jacking forces in highly weathered lithologies (or ‘soft rocks’) typically presents challenges relating to the measure of salient mechanical parameters of such lithologies, particularly the strength and deformation properties. This is mainly due to challenges in extracting intact rock cores for conventional laboratory-based rock tests, such as uniaxial compressive strength...
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Some Experiences from Microtunnelling through the Highly Erratic Lithologies of the Tuang Formation, Kuching
Abstract: With the rapid growth of Kuching, the conventional use of septic tanks as the in-situ wastewater treatment method was no longer sustainable, particularly due to the impact of sludge disposal into the Sungei Sarawak. Therefore, it was necessary to construct the Kuching Wastewater Management System (KWMS) for 100,000 PE, which comprised of a centralised wastewater treatment plant, property...
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