Geohazard and Geotechnical Assessment for Reclamation Projects in the Philippines

Author: Roy Anthony C. Luna, Jose Carlo Eric L. Santos, Edgardo P. Kasilag II, Rodora C. Perez, Arlene B. Paulino, John Michael B. Gargullo, Emmanuel D. Marasigan

Presenter: (For presentation)


Several reclamation projects are proposed in Manila Bay for property development, new ports and airport. The nature and magnitude of the proposed projects require a comprehensive investigation program for reliable site characterization. The conducted geohazard assessment shows that the coastline of Manila Bay Area (MBA) is susceptible to various geologic hazards such as ground motion and liquefaction. This is confirmed in the geotechnical investigation program conducted where thick layers of very soft to soft clays and very loose to loose sands were encountered. The geotechnical investigation involved mainly of Standard Penetration Test (SPT) but limited data from Cone Penetrometer Test (CPT) and Seismic Velocity Logging (SVL) were also available and utilized for the site characterization. This study focused on two regions in the Manila Bay Area. The northern region, located in Bulacan, is characterized with thick layers of compressible soils ranging from 6.0 meters to 27.0 meters. The southern region, located near the City of Manila and Pasay City, is characterized with relatively thinner layers of compressible soils ranging from 1.5 meters to 23.0 meters. The measured shear wave velocities from SVL reveal that the regions can be classified under soil profile types SE (soft soil profile) and SD (stiff soil profile).


Conference/s:

6th International Conference on Geotechnical and Geophysical Site Characterization – Budapest, Hungary (2021)


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