CHALLENGES IN ENGINEERING GEOLOGICAL MAPPING AT LARGE SCALES 1:2000 FOR SUBMERGED CORAL ISLANDS

Abstract

This article presents a methodology for creating large-scale engineering geological maps (1:2000) for submerged coral islands in Vietnam’s maritime zones, in accordance with the national standard TCVN 9156:2012. The primary objective is to provide a comprehensive representation of key geological and environmental factors, particularly coral sediments that influence land use planning, construction design, and implementation. As there are currently no specific national standards for engineering geological mapping in coral-based island areas, this study references various related standards and documents. It also highlights significant issues that need to be addressed when conducting large-scale engineering geological mapping in submerged coral environments.
The results demonstrate that large-scale engineering geological mapping is of considerable scientific and practical value for construction planning, resource management, and natural disaster mitigation. The article also recommends further research to enhance mapping accuracy and the development of appropriate technical standards. Future directions emphasize the integration of modern technologies, such as GIS-based digital mapping, 3D geological modeling, and virtual reality (VR) applications, to simulate geological conditions and assess geohazards in marine island environments. These advancements aim to address challenges posed by climate change and promote sustainable development.