SUBDIVISION OF ENGINEERING GEOLOGY IN DA NANG CITY FOR DESIGNING THE CONSTRUCTIONS AND NATURAL HAZARDS
DOI:
https://doi.org/10.11113/aej.v16.24909Keywords:
Geological structure; Geomorphology; Engineering geology; soil characteristic; design constructions.Abstract
Da Nang city, located on the south-central coast of Vietnam, is characterized by diverse geomorphological features, including low eroded hills, karst formations, and coastal plains. In recent years, rapid urbanization and increasing construction density have intensified the challenges of building on weak and unstable ground foundations. These conditions highlight the need for geotechnical and geological assessments to support sustainable urban development. The study aims to provide a scientific basis for the planning and construction of buildings, residential areas, and transportation infrastructure in line with social-economic development. Findings reveal that the northwestern part of the city is dominated by eroded low hills (Zone I), which are further subdivided into engineering geological subzones IA, IB and IC. Covering Hoa Vang district, the western part of Da Nang, Hoa Nhon and Hoa Phu wards, Son Tra peninsula, Ngu Hanh Son Mountain, and the drainage basin of Cu De, Tuy Loan and Lo Dong rivers, these subzones are generally suitable for construction activities. In contrast, the southeastern coastal plains (Zone II)-subdivided into subzones IIA, IIB and IIC-encompasses Lien Chieu, Thanh Khe, Hai Chau, Ngu Hanh Son and Son Tra districts. These subzones are characterized by weak and unstable geotechnical foundations, which present potential risks to construction projects.
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