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ABSTRACT
To cope with future electricity demand and upgrade power system stability against extreme weather, CLP Power Hong Kong Limited (CLP Power) has developed a new 400kV overhead line circuit. The project involved building a new gantry situated on a natural steep slope, which natural terrain hazards including open hillslope failure, rockfall needed to be addressed. This technical note discussed the technical considerations and challenges to cater for the geological settings, methodologies applied in the geological assessment from desktop studies, site reconnaissance, natural terrain hazard assessment, mitigation measures, foundation design, and the use of Building Information Model (BIM) to enhance project planning and development.
Acknowledgements
The authors wish to thank the management of CLP Power Hong Kong Limited for their support and permission to publish this paper.
Additional information
Notes on contributors
Anthony W L Ip
Ir Anthony W L Ip (Senior Project Engineer – Civil Construction, CLP Power Hong Kong Limited) – a Civil and Structural Engineer with over 28 years of experience in managing design and construction for different building, slope work and civil projects.
Victor Y K Shum
Ir Victor Y K Shum (Engineer I, CLP Power Hong Kong Limited) – a Geotechnical Engineer with over 15 years of experience in managing design and construction for different slope and site formation work projects in both the private and government sectors.
Leo K P Fung
Ir Leo K P Fung (Engineer I, CLP Power Hong Kong Limited) – a Civil Engineer with over 10 years of experience in managing design and construction for different civil projects in the private and government sectors.