Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL077812 |
Transient Reactivation of a Deep-Seated Landslide by Undrained Loading Captured With Repeat Airborne and Terrestrial Lidar | |
Booth, Adam M.1; McCarley, Justin1; Hinkle, Jason2; Shaw, Susan2; Ampuero, Jean-Paul3,4; Lamb, Michael P.3 | |
2018-05-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:10页码:4841-4850 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France |
英文摘要 | Landslides reactivate due to external environmental forcing or internal mass redistribution, but the process is rarely documented quantitatively. We capture the three-dimensional, 1-m resolution surface deformation field of a transiently reactivated landslide with image correlation of repeat airborne lidar. Undrained loading by two debris flows in the landslide's head, rather than external forcing, triggered reactivation. After that loading, the lower 2 km of the landslide advanced by up to 14 m in 2 years before completely stopping. The displacement field over those 2 years implies that the slip surface gained 1 kPa of shear strength, which was likely accomplished by a negative dilatancy-pore pressure feedback as material deformed around basal roughness elements. Thus, landslide motion can be decoupled from external environmental forcing in cases, motivating the need to better understand internal perturbations to the stress field to predict hazards and sediment fluxes as landscapes evolve. |
英文关键词 | undrained loading landslide reactivation fracture mechanics Oregon cascades image correlation lidar |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435262000035 |
WOS关键词 | PORE-PRESSURE FEEDBACK ; CATASTROPHIC FAILURE ; MASS MOVEMENTS ; CALIFORNIA ; EARTHFLOWS ; SHEAR ; DISPLACEMENTS ; REGISTRATION ; DEFORMATION ; EVOLUTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29104 |
专题 | 气候变化 |
作者单位 | 1.Portland State Univ, Dept Geol, Portland, OR 97207 USA; 2.Weyerhaeuser Co, Springfield, OR USA; 3.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 4.Univ Cote Azur, CNRS, Observ Cote Azur, IRD, Valbonne, France |
推荐引用方式 GB/T 7714 | Booth, Adam M.,McCarley, Justin,Hinkle, Jason,et al. Transient Reactivation of a Deep-Seated Landslide by Undrained Loading Captured With Repeat Airborne and Terrestrial Lidar[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(10):4841-4850. |
APA | Booth, Adam M.,McCarley, Justin,Hinkle, Jason,Shaw, Susan,Ampuero, Jean-Paul,&Lamb, Michael P..(2018).Transient Reactivation of a Deep-Seated Landslide by Undrained Loading Captured With Repeat Airborne and Terrestrial Lidar.GEOPHYSICAL RESEARCH LETTERS,45(10),4841-4850. |
MLA | Booth, Adam M.,et al."Transient Reactivation of a Deep-Seated Landslide by Undrained Loading Captured With Repeat Airborne and Terrestrial Lidar".GEOPHYSICAL RESEARCH LETTERS 45.10(2018):4841-4850. |
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