Geological Behavior (Sep 2017)

Rock Slope Stability Assessment of Limestone Hills in Northern Kinta Valley, Ipoh, Perak, Malaysia

  • GOH THIAN LAI ,
  • AINUL MARDHIYAH MOHD RAZIB,
  • NUR AMANINA MAZLAN,,
  • ABDUL GHANI RAFEK,,
  • AILIE SOFYIANA SERASA,
  • NORBERT SIMON,
  • NORAINI SURIP,
  • LEE KHAI ERN4AND TUAN RUSLI MOHAMED

DOI
https://doi.org/10.26480/gbr.01.2017.22.26
Journal volume & issue
Vol. 1, no. 1
pp. 22 – 26

Abstract

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The uniqueness of karsttopography in Kinta Valley lies with the spectacular shape of the steep-sided limestone towers. However, theinstability ofthese hillslopes may affect the vulnerability of the surrounding area. Thus, this study was conducted with the objective to investigate the failure modes of 9 slopes in the vicinity ofnorthernKinta Valley, Ipoh, Perak. There were two types of failure modes identified in the study area,which are planar and wedge failures. Planar failures were identified on slope GL3of Gunung Lang and slope GR3of Gunung Rapat with the dip direction and dip angle of 280⁰/79⁰ and 004⁰/ 64⁰ respectively. Two wedge failures were identified on slope QXL1of Qing Xing Ling, Taman Saikat with dip direction and dip angle of 252⁰/82⁰ and 302⁰/74⁰ respectively. A wedge failure was identified on slope GL3 for Gunung Lang, slope GR1, slope GR3 for Gunung Rapat and slope QXL2 for Qing Xing Ling,Taman Saikat. The dip direction and dip angle for the respective wedges failure were 345⁰/65⁰, 036⁰/ 49⁰, 006⁰/ 64⁰ and 025⁰/60⁰. No failure was identified on slope GL1, and slope GL2,forGunung Lang and slope GR2, and slope GR4forGunungRapat.

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