Abstract
This paper reports on a large-scale landslide with a movement of 48 thousand m3 of soil and rock that occurred in Sichuan, China. This catastrophic landslide occurred in Aidai village, Ganluo County, at 12:44 on 14 August 2019, blocking a section of the railway between Lianghong station and Aidai station. This landslide resulted in 12 deaths and five people missing. This report describes the preliminary investigation, the rescue activity, topographic survey and analysis as well as the main predisposing and triggering factors. The combined effects of steep topography, continuous rainstorms, floods eroding the foothills of the mountain and human activity were the main influencing factors that triggered this landslide. To reduce the possibility of casualties resulting from large geological disasters, such as landslides and mudslides, in this region in the future, some recommendations are proposed to systematically reduce potential human casualties and economic losses.
Highlights
IntroductionAmong which China is one of the most seriously affected countries [1]
Thousands of landslides happen every year worldwide causing deaths and large damages [1,2,3]among which China is one of the most seriously affected countries [1]
The total number of deaths from snow, drought, typhoon, and earthquake in 2018 was 103, and the total economic loss was 116.03 billion yuan which together is equivalent to the losses by floods and geological disasters
Summary
Among which China is one of the most seriously affected countries [1]. It is reported that 130 million people were affected by natural disasters in China in 2018 which killed 589 people, left 46 people missing, and caused direct economic loss of 264.46 billion yuan. 35.3 million people suffered floods and geological disasters nationwide which resulted in 338 deaths, 42 persons missing, and 1.42 million people urgently being relocated. Direct economic losses reached 106.05 billion yuan (approximately $15.06 billion USD) [4]. The total number of deaths from snow, drought, typhoon, and earthquake in 2018 was 103, and the total economic loss was 116.03 billion yuan (approximately $16.5 billion USD) which together is equivalent to the losses by floods and geological disasters
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