Stability analysis of embankment on geotextile reinforced foundation: the case of At-grade section of NAIA expressway (Phase II), Parañaque City, Philippines

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

The embankment of the proposed road of the NAIA Expressway Phase II at grade section may undergo stability failure due to its soft foundation soil. To address this problem, countermeasure was implemented by using geotextile as foundation reinforcement. To assess the effectivity of the geotextile used in the construction of embankment, four cases were considered in the stability analysis: embankment constructed on foundation without geotextile, embankment on geotextile reinforced foundation, and cases which includes seismic loading in the analysis. A series of limit equilibrium analyses using Spencer's method was performed with the help of GEO5, a stability analysis program. The unit weight, cohesion, and angle of friction of each soil layers were used as inputs in the analysis. Moreover, traffic load as well as the tensile strength of the geotextile was also incorporated in the analysis. The result of the stability analysis shows that the embankment on geotextile reinforced are very stable in the absence of seismic forces. However, if a worst-case scenario earthquake occurs, it can have a negative effect on the stability of the embankment

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993 2015 E63 /V55

Document Type

Thesis

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