Geological and Geotechnical Characterization of Guadalupe Tuff Formation

Abstract: The first-ever underground rapid transit line in the Philippines, known as the Metro Manila Subway, was approved by the Philippine government for study and design, and subsequent construction. In order to proceed with the safe and cost-effective design of the subway system, a reasonably exhaustive geologic and geotechnical characterization of the subsurface conditions along the subway alignment is essential. The geotechnical investigation and testing consisted of several boreholes, rock, and soil sampling and testing, as well as borehole scanning using acoustic and optical televiewers. This paper presents the results of the comprehensive geotechnical investigation and geological characterization of the Guadalupe Tuff Formation.