Abstract:
Phenomena of slope movement were identified on the southern side
of Penggaron Bridge, which is Abutment 2 (A2) and Pier 9 (P9), at the end of
2011. Geotechnical instrumentation gives a result that the landslide movement is
instead directed toward the North-East direction. A common way of backanalysis
is by assuming that the Safety Factor (SF) is equal to unity through a
defined sliding plane. Nevertheless, the fact is that the movements are still
limited, and the residual strength is to be determined. Hence, a threedimensional
landslide back-analysis is performed to assess the slope stability
for such a particular condition. A new back-analysis approach, namely the
displacement matching method, is introduced and briefly explained. The results
show that the method is prospective to be used, especially for the assessment of
the existing Safety Factor of the slope. This study gives a better illustration of
the real safety factor.
Description:
Makalah dipresentasikan pada The 6th International Conference on Civil, Offshore and Environmental Engineering (ICCOEE2020). The Department of Civil and Environmental Engineering of Universiti Teknologi PETRONAS (UTP). Virtual Congress, 13-15 July 2021. p. 1061-1074.
