Seismically induced landslide hazard analysis of the UPLB campus

Date

6-2015

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Jedidiah Joel C. Aguirre

Abstract

UPLB is a University located in the towns of Los Baños and Bay, Laguna. Recent studies show that its location is prone to earthquake related hazards due to its proximity to faults such as the Valley Fault System, Lubang Fault, and Philippine Fault Zone (PFZ): Infanta Fault. This study was done to quantify the hazard brought by shallow seismically-induced landslides, by estimating the Newmark displacements of the slopes in the area when subjected to a 475-year return period earthquake. To do this, static and seismic slop stability analysis were conducted. A uniform soil property for the site was assumed due to limited borehole data obtained. The resulting Factor of Safety (SF), critical acceleration, and Newmark displacements from the stability analyses were mapped using ArcGIS 10.1. FS value of the slopes inside the campus ranges from 1.75 to 10. There are also slopes with FS values less than the critical value 1.5, however, these slopes are located outside the campus boundaries. On the other hand, the critical acceleration of the same slopes ranges from 0.5g t0 0.9g. The Newmark displacements of the slopes inside the campus, considering a uniform soil property for the area, are less than 1cm. This implies that the campus is safe against shallow landslides due to earthquake with 475-year return period.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2015 E63 /M33

Document Type

Thesis

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