Open AccessSlope stability analysis along the road between Yinmabin and Kalaw in Mandalay region and Shan state, Myanmar
Author(s) -
A K Myat,
Day Wa Aung,
Tun Naing Zaw,
H M New
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/849/1/012021
Subject(s) - landslide , rockfall , geology , mass movement , hazard analysis , hazard , geotechnical engineering , geomorphology , mining engineering , chemistry , organic chemistry , aerospace engineering , engineering
Slope stability analysis along the road between Yinmabin and Kalaw, in Mandalay Region and Shan State was carried out aiming to gain preventive measure for the landslide due to the lack of consideration on landslide hazards and associated risk. The rocks comprise the sedimentary rocks of Plateau Limestone Group, Loi-an Group and Kalaw Red Bed, and the Yinmabin Metamorphics. Notably, four types of landslides such as rockfall, debris flow, creep and slump have been identified along this road. Rockfall is the commonest landslide mainly occurs along the manmade road cuttings generating potential threats to human life triggered by heavy and prolong rainstorm. Slope Mass Rating (SMR) values indicated that Yinmabin Meamorphics is the most vulnerable to landslide. Three types of failures such as wedge, plane and toppling failures are confirmed by kinematic analysis. Moreover, a total of three landslide hazard zones is interpreted based on geological and geotechnical parameters. These zones are described as Landslide Hazard Zone I (west of Yinmabin), Zone II (eastern part of Yebokson and western part of Kyatsakan) and Zone III (the area between Nampandet and Wetphuye). Remedial measures have been proposed to mitigate the hazard.