Penilaian kualiti subgred turapan menggunakan kaedah analisis spektrum gelombang permukaan

Translated title of the contribution: Evaluation of pavement subgrade quality using the spectral analysis of surface wave method

Sri Atmaja P Rosyidi, Mohd. Raihan Taha, Amiruddin Ismail, Zamri Chik

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In highway pavement management, the bearing capacity of the subgrade layers have significant influence on the performance of the overall pavement structure. Thus, the evaluation of subgrade quality is periodically needed for monitoring of the quality of the pavement so that it can be passed by moving vehicles without damage. The Spectral Analysis of Surface Wave-SASW, method is an in-situ non-destructive seismic testing method which is used for assessing the stiffness and the depth of road pavement structures including the subgrade layer in a fast and inexpensive manner. The objective of this paper is to present the capability of the sAsw method in the assessment of the quality of pavement subgrade layer. The SASW method employed is based on the R-wave propagation. Using the phase difference data of R-waves propagating in the surface of a pavement, the experimental dispersion curve of phase velocity is obtained. Consequently, inversion process is conducted to obtain the dynamic elastic and shear modulus of the pavement structure. The results showed that the SASW method was able to determine useful dynamic parameters for evaluation ofthe subgrade layer performance. Empirical models with good correlations were also derived from this study which can be easily used for in situ evaluation of the subgrade layer stiffness.

Original languageUndefined/Unknown
Pages (from-to)21-30
Number of pages10
JournalSains Malaysiana
Volume38
Issue number1
Publication statusPublished - Feb 2009

Fingerprint

Pavements
Surface waves
Spectrum analysis
Elastic moduli
Stiffness
Phase velocity
Bearing capacity
Wave propagation
Monitoring
Testing

Keywords

  • Pavement management
  • SASW method
  • Stiffness of pavement
  • Subgrade stiffness

ASJC Scopus subject areas

  • General

Cite this

Penilaian kualiti subgred turapan menggunakan kaedah analisis spektrum gelombang permukaan. / Rosyidi, Sri Atmaja P; Taha, Mohd. Raihan; Ismail, Amiruddin; Chik, Zamri.

In: Sains Malaysiana, Vol. 38, No. 1, 02.2009, p. 21-30.

Research output: Contribution to journalArticle

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