A Research on the Characteristics of Landslide in Laocai and Sapa in Northern Vietnam in 2017
Abstract
Large scale landslides have occurred in Vietnam every year due to the effects of typhoons and torrential rains, resulting in creating a large number of casualties. Nonetheless, Vietnam has not equipped with a scientific management system to prevent the disasters in cut slopes or mountainous areas in advance. The survey area in this study contains cut slopes located in Lao Cai-Sapa in the northern region of Vietnam where a large number of casualties occurred in 2017 due to the landslide after typhoon occurrence. The region is a border area between China and Vietnam. It is famous for the world's renowned tourist attraction site due to its beautiful scenery where road users are many. The risk level and damage factors that may induce landslides and the collapse characteristics of the cut slopes were collected through the international collaboration scrutiny (Korea Institute of Construction Technology and the Vietnam Institute of Transport Science and Technology). In particular, a correlation between drain and cut slope collapse was identified since the region was famous for agricultural form that employed rice terraces located in the upper area of the cut slopes.
The current cut slope management status in the local area of Vietnam is investigated based on the cut slope management system (CSMS) of Korea, and a scientific system for systematic management on cut slopes in Vietnam is now under construction.- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMEP21C2266W
- Keywords:
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- 1810 Debris flow and landslides;
- HYDROLOGYDE: 1824 Geomorphology: general;
- HYDROLOGYDE: 1826 Geomorphology: hillslope;
- HYDROLOGYDE: 4302 Geological;
- NATURAL HAZARDS