scholarly journals Evaluation of Dike and Natural Slope Failure Induced by Heavy Rainfall in Niigata on 13 July 2004

2006 ◽  
Vol 46 (1) ◽  
pp. 83-98 ◽  
Author(s):  
Hirofumi Toyota ◽  
Kouichi Nakamura ◽  
Naoki Sakai
Author(s):  
Shoichi UEMURA ◽  
Yasuyuki UJIHASHI ◽  
Shinya HIRAMATSU ◽  
Hiroto SUZUKI
Keyword(s):  

2016 ◽  
Vol 16 (6) ◽  
pp. 1309-1321 ◽  
Author(s):  
Ching-Jiang Jeng ◽  
Dar-Zen Sue

Abstract. The Huafan University campus is located in the Ta-lun Shan area in northern Taiwan, which is characterized by a dip slope covered by colluvium soil of various depths. For slope disaster prevention, a monitoring system was constructed that consisted of inclinometers, tiltmeters, crack gages, groundwater level observation wells, settlement and displacement observation marks, rebar strain gages, concrete strain gages, and rain gages. The monitoring data derived from hundreds of settlement and displacement observation marks were analyzed and compared with the displacement recorded by inclinometers. The analysis results revealed that the maximum settlement and displacement were concentrated on the areas around the Hui-Tsui, Zhi-An, and Wu-Ming buildings and coincided with periods of heavy rainfall. The computer program STABL was applied for slope stability analysis and modeling of slope failure. For prevention of slope instability, a drainage system and tieback anchors with additional stability measures were proposed to discharge excess groundwater following rainfall. Finally, threshold value curves of rainfall based on slope displacement were proposed. The curves can be applied for predicting slope stability when typhoons are expected to bring heavy rainfall and should be significant in slope disaster prevention.


2017 ◽  
Vol 12 (5) ◽  
pp. 993-1001
Author(s):  
Toru Danjo ◽  
Tomohiro Ishizawa ◽  
Masamitsu Fujimoto ◽  
Naoki Sakai ◽  
Ryoichi Fukagawa ◽  
...  

Every year in Japan, slope failures often occur due to heavy rainfall during the wet season and typhoon season. The main reasons for soil failure are thought to be the increase of soil weight from infiltrated precipitation, the decrease in shear strength, and effects of the increase groundwater elevation. It is therefore important to consider to characteristics of groundwater behavior to improve slope disaster prevention. Kiyomizu-dera experienced major slope failures in 1972, 1999, and 2013, and a large slope failure occurred nearby in 2015. The two most recent events occurred since observation of precipitation and groundwater conditions began at the site in 2004. In this research, we determine the relationship between rainfall and groundwater level using both a full-scale model experiment and field measurements. Results indicate strong connection between rainfall intensity and the velocity of increase in groundwater level, indicating that it is possible to predict changes in the groundwater level due to heavy rainfall.


Landslides ◽  
1974 ◽  
Vol 10 (3) ◽  
pp. 42-47 ◽  
Author(s):  
Tomomitsu YASUE ◽  
Shun OKUBO

2020 ◽  
Vol 38 (4) ◽  
pp. 3697-3707
Author(s):  
Dharmendra Kumar Srivastava ◽  
Vaishali Sahu ◽  
H. B. Raghavendra

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