TY - GEN
T1 - Motion Analysis of Ground Failure Considering Rainfall and Ground Water Migration in Sandy Slopes
AU - Liu, Yan
AU - Hazarika, Hemanta
AU - Rohit, Divyesh
AU - Ali, Sahibbi
AU - Fukumoto, Yasuhide
AU - Murai, Masanori
AU - Linh, Nguyen Thi Hoai
AU - Taguchi, Yurika
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2023
Y1 - 2023
N2 - Failure of sandy slopes during heavy rainfall is often attributed to the rise of the groundwater table, which causes the slope to gradually transition from an unsaturated to a saturated state. Conventional methods for evaluating the stability of slopes under the influence of rainfall neglected the migration of groundwater and the dynamic motion of particles. In the current study, a model test is conducted to evaluate the trend of the groundwater table migration. In addition, a framework for partially saturated and unsaturated slopes is proposed for the dynamic process based on the analytical method. The results of the study show that based on the data analysis of the model tests, the upward trend of the groundwater table can be determined. Furthermore, the factor of safety (Fs) calculated from the analytical method shows that, Fs decreases sharply due to the upward migration of the groundwater table. The motion analysis provides the soil displacement and particle trajectory. This study provides an effective and practical method for evaluating the stability of unsaturated slopes under rainfall conditions, which can also be used for preliminary analysis in the early warning process.
AB - Failure of sandy slopes during heavy rainfall is often attributed to the rise of the groundwater table, which causes the slope to gradually transition from an unsaturated to a saturated state. Conventional methods for evaluating the stability of slopes under the influence of rainfall neglected the migration of groundwater and the dynamic motion of particles. In the current study, a model test is conducted to evaluate the trend of the groundwater table migration. In addition, a framework for partially saturated and unsaturated slopes is proposed for the dynamic process based on the analytical method. The results of the study show that based on the data analysis of the model tests, the upward trend of the groundwater table can be determined. Furthermore, the factor of safety (Fs) calculated from the analytical method shows that, Fs decreases sharply due to the upward migration of the groundwater table. The motion analysis provides the soil displacement and particle trajectory. This study provides an effective and practical method for evaluating the stability of unsaturated slopes under rainfall conditions, which can also be used for preliminary analysis in the early warning process.
UR - https://www.scopus.com/pages/publications/85151056586
UR - https://www.scopus.com/inward/citedby.url?scp=85151056586&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-20172-1_31
DO - 10.1007/978-3-031-20172-1_31
M3 - Conference contribution
AN - SCOPUS:85151056586
SN - 9783031201714
T3 - Lecture Notes in Civil Engineering
SP - 321
EP - 329
BT - 5th International Conference on New Developments in Soil Mechanics and Geotechnical Engineering - Proceedings of ZM 2022
A2 - Atalar, Cavit
A2 - Çinicioğlu, Feyza
PB - Springer Science and Business Media Deutschland GmbH
T2 - 5th International Conference on New Developments in Soil Mechanics and Geotechnical Engineering, ZM 2022
Y2 - 30 June 2022 through 2 July 2022
ER -