Precaution and early warning of surface failure of slopes using tilt sensors

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地灾害与地表过程重点实验室

	Precaution and early warning of surface failure of slopes using tilt sensors
	Uchimura, Taro 1; Towhata, Ikuo 1; Wang, Lin 2; Nishie, Shunsaku 2; Yamaguchi, Hiroshi 2; Seko, Ichiro 2; Qiao, Jianping3
刊名	SOILS AND FOUNDATIONS
	2015-10-01
卷号	55 期号:5 页码:1086-1099
关键词	Slope failure Monitoring Early warning Tilt angle Sensor network
ISSN号	0038-0806
通讯作者	Uchimura, Taro
英文摘要	A simple monitoring method for the early warning of rainfall-induced landslides is proposed. Tilting angles in the surface layer of the slope are mainly monitored in this method. In the first stage of this study with a scaled model slope, distinct behaviors were observed in the tilt angles monitored on the surface of the slope prior to failure. Hence, a set of equipment has been developed for practical use, which is equipped with a Micro Electro Mechanical Systems (MEMS) tilt sensor and a volumetric water content sensor. An optional arrangement of tilt sensors has also been developed in order to investigate the deformation of the deeper layers. These sets of equipment have been deployed at several slope sites in Japan and China, and their performances have been recorded. Slope failure tests were also conducted on a natural slope by applying artificial heavy rainfall. The developed system detected distinct behaviors in the tilting angles at these sites in the pre-failure stages. Considering the behaviors of tilting monitored on the surfaces of these slopes, it is proposed that a precaution be issued at a tilting rate of 0.01 degrees per hour and a warning be issued at a tilting rate of 0.1 degrees per hour, to be on the conservative side. (C) 2015 The Japanese Geotechnical Society. Production and hosting by Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Geological ; Geosciences, Multidisciplinary
研究领域[WOS]	Engineering ; Geology
关键词[WOS]	LANDSLIDE ; RAINFALL
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000363433500014
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/13831]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
作者单位	1.Univ Tokyo, Dept Civil Engn, Bunkyo Ku, Tokyo 1138656, Japan 2.Chuo Kaihatsu Corp, Tokyo, Japan 3.Inst Mt Hazards & Environm, Chengdu, Peoples R China
推荐引用方式 GB/T 7714	Uchimura, Taro,Towhata, Ikuo,Wang, Lin,et al. Precaution and early warning of surface failure of slopes using tilt sensors[J]. SOILS AND FOUNDATIONS,2015,55(5):1086-1099.
APA	Uchimura, Taro.,Towhata, Ikuo.,Wang, Lin.,Nishie, Shunsaku.,Yamaguchi, Hiroshi.,...&Qiao, Jianping.(2015).Precaution and early warning of surface failure of slopes using tilt sensors.SOILS AND FOUNDATIONS,55(5),1086-1099.
MLA	Uchimura, Taro,et al."Precaution and early warning of surface failure of slopes using tilt sensors".SOILS AND FOUNDATIONS 55.5(2015):1086-1099.