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Prediction of Slope Failure in Cold Regions Induced by a Rainfall During Snowmelt Period
In cold regions, soil slope failures frequently occur due to an increase in the degree of saturation of soil by snowmelt and rainfall infiltration. However, studies related to the coupled effects of snowmelt and rainfall infiltration in cold region are very limited. This paper studies a soil slope failure occured on snowmelt period at a natural cut slope of the expressway in Hokkaido, Japan. According to the disaster investigation report, the slope failure was occured by inflitration of snowmelt, rainfall and overflow water from the drainage ditch. To investigate the cause of the slope failure, reproduction analysis which includes the three-dimensional unsaturated/saturated seepage analysis and slope stability analysis was performed. The numerical simulation considers the effects of snowmelt, rainfall, overflow from drainage ditch and surface grass. It is concluded that the overflow from the drainage ditch had serious effects on this slope failure. Moreover, the numerical simulation approach can reproduce the slope failure caused by infiltration of snowmelt, rainfall and overflow from drainage ditch.
Prediction of Slope Failure in Cold Regions Induced by a Rainfall During Snowmelt Period
In cold regions, soil slope failures frequently occur due to an increase in the degree of saturation of soil by snowmelt and rainfall infiltration. However, studies related to the coupled effects of snowmelt and rainfall infiltration in cold region are very limited. This paper studies a soil slope failure occured on snowmelt period at a natural cut slope of the expressway in Hokkaido, Japan. According to the disaster investigation report, the slope failure was occured by inflitration of snowmelt, rainfall and overflow water from the drainage ditch. To investigate the cause of the slope failure, reproduction analysis which includes the three-dimensional unsaturated/saturated seepage analysis and slope stability analysis was performed. The numerical simulation considers the effects of snowmelt, rainfall, overflow from drainage ditch and surface grass. It is concluded that the overflow from the drainage ditch had serious effects on this slope failure. Moreover, the numerical simulation approach can reproduce the slope failure caused by infiltration of snowmelt, rainfall and overflow from drainage ditch.
Prediction of Slope Failure in Cold Regions Induced by a Rainfall During Snowmelt Period
Lecture Notes in Civil Engineering
Barla, Marco (editor) / Di Donna, Alice (editor) / Sterpi, Donatella (editor) / Murakami, Takumi (author) / Ishikawa, Tatsuya (author) / Binh, Nguyen Thanh (author) / Mori, Akira (author) / Yokota, Seiya (author)
International Conference of the International Association for Computer Methods and Advances in Geomechanics ; 2021 ; Turin, Italy
2021-01-15
9 pages
Article/Chapter (Book)
Electronic Resource
English
Application of Critical Rainfall Curve to Rainfall and Snowmelt induced Embankment Slope Collapse
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| British Library Online Contents | 2018