Deep Understanding on ERSS Design in Bukit Timah Granite
by Dr. Sun Jianping, CHECC (Singapore) Pte Ltd
Wednesday, 26 February 2025 // 7.00 - 8.30 pm
ABSTRACT:
Bukit Timah Granite is a significant geological formation in Singapore, presenting unique challenges for Earth Retaining or Stabilizing Structures (ERSS) due to its weathering profile, jointed nature, and in-situ stress conditions. This presentation provides an in-depth analysis of the geotechnical design parameters required for ERSS in the Bukit Timah Granite. Key design considerations are addressed, including the use of the Generalized Hoek-Brown criterion and Mohr-Coulomb parameters to model rock mass behaviour. The presentation also highlights the implications of jointed rock models, and anisotropic material behaviour in the geotechnical design process. By synthesizing findings from multiple studies and field data, this work aims to optimize the safe and efficient design of ERSS in tropical weathered rock formations like the Bukit Timah Granite.
ABOUT THE SPEAKER:
Dr. Sun Jianping is design director from CHECC(Singapore) Pte Ltd. He is a registered Professional Engineer (Civil), Specialist Professional Engineer (Geotechnical), IES CEng in Infrastructure Engineering and ASEAN Chartered Professional Engineer. He is also a Design for Safety professional (DfSP) and Qualified Piling Personnel. Dr. Sun is Committee Member of Society for Rock Mechanics & Engineering Geology, Singapore. He has over 15 years of experience in rock engineering, project management and deep excavation ERSS design for Jurong Rock Cavern Project, Underground Water Reservoir, Thomson East Coast Line, Cross Island Line and Changi Airport T5 Project etc. His major areas of interest are deep excavation, ground improvement, deep foundations, instrumentation and monitoring, slope stability, rock cavern excavation and rock grouting.
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