Abstract
A project to establish a 3D geological model in Singapore using available borehole data and other geological/geotechnical data has been initiated. This paper presents the background and procedure adopted for this project. A fence diagram and the resulting 3D geological model for a selected zone in Singapore are presented. Several issues related to the modelling are discussed. The quality and quantity of the borehole data have a direct influence on the accuracy of the 3D model created. A data-cleaning procedure is required to remove typographical errors or duplicates from the database. With a good understanding of the complete geological sequence and the likely geomorphological evolution of the area under study using the constructed fence diagrams, the 3D geological model can be built layer by layer after the geological boundaries have been constructed. The interpreted cross-sections and the constructed fence diagrams can help geologists to have a better understanding of the complex sub-surface profiles in a three dimensional way. It will become a design tool for future city planning and underground constructions.
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Acknowledgement
We would like to acknowledge that this study is supported by the project “Web-based 3D geodata modelling and management system (GeM2S) (Grant No. L2NICCFP2-2015-1)” from the Ministry of National Development, Singapore, under the Land and Livability National Innovation Challenge (L2NIC) program.
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Pan, X. et al. (2018). Procedure for Establishing a 3D Geological Model for Singapore. In: Shi, X., Liu, Z., Liu, J. (eds) Proceedings of GeoShanghai 2018 International Conference: Transportation Geotechnics and Pavement Engineering. GSIC 2018. Springer, Singapore. https://doi.org/10.1007/978-981-13-0011-0_9
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DOI: https://doi.org/10.1007/978-981-13-0011-0_9
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