Rock slope stability analysis using photogrammetric method at hume cement quarry, gopeng, Perak
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Date
2018-06
Authors
Aisyah Shahirah Juhari
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Abstract
This project focused on rock slope stability analysis at Hume Cement Quarry by
using photogrammetry method and analysis data by Dip 7.0 program in rocscience.
Quarry is a common place which is instability of the rock slope happen as the big issues
due to the activities on site work such as excavation and blasting where it creating
fractures, faults, and joints. In this project, several kinds of analysis are taken to
investigate the stability of the rock slope whether it might be fail or not. There are two
methods used which is empirical analysis, where it is more conventional i.e scanline
mapping and kinematic analysis by using modern technology i.e drone for
photogrammetry mapping. The software used in this project is AgiSoft PhotoScan, Cloud
Compare, Discontinuities Set Extractor program in MathLab software, and Dips 7.0 in
Rocscience software. As result from empirical analysis, the rock at window A is classified
as “poor rock”. Meanwhile kinematic analysis result shows the probability of the rock
slope to be a failure is high for wedge and toppling failure but does not occur for planar
failure. The major plane of discontinuities is Discontinuity Sets 1 (DS1). Rosette plot of
both methods shows the same direction but different in quantity of the discontinuities set.
The most dominant direction is N330˚ - N340˚ which trends on NNW-SSE where it
describes the major direction of discontinuities while the least dominant discontinuities
orientation happens to occur at E-W with the direction of N080˚-N090˚.