Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076807 |
Clayey Landslide Initiation and Acceleration Strongly Modulated by Soil Swelling | |
Schulz, William H.1; Smith, Joel B.1; Wang, Gonghui2; Jiang, Yao2,3; Roering, Joshua J.4 | |
2018-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:4页码:1888-1896 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Japan; Peoples R China |
英文摘要 | Largely unknown mechanisms restrain motion of clay-rich, slow-moving landslides that are widespread worldwide and rarely accelerate catastrophically. We studied a clayey, slow-moving landslide typical of thousands in Northern California, USA, to decipher hydrologic-mechanical interactions that modulate landslide dynamics. Similar to some other studies, observed pore-water pressures correlated poorly with landslide reactivation and speed. In situ and laboratory measurements strongly suggested that variable pressure along the landslide's lateral shear boundaries resulting from seasonal soil expansion and contraction modulated its reactivation and speed. Slope-stability modeling suggested that the landslide's observed behavior could be predicted by including transient swell pressure as a resistance term, whereas modeling considering only transient hydrologic conditions predicted movement five to six months prior to when it was observed. All clayey soils swell to some degree; hence, our findings suggest that swell pressure likely modulates motion of many landslides and should be considered to improve forecasts of clayey landslide initiation and mobility. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427564300022 |
WOS关键词 | SLOW-MOVING LANDSLIDES ; PORE-PRESSURE FEEDBACK ; NORTHERN CALIFORNIA ; CORTINA-DAMPEZZO ; MONITORING DATA ; EARTHFLOWS ; FLOW ; MOVEMENT ; MOBILITY ; MODEL |
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/28298 |
专题 | 气候变化 |
作者单位 | 1.US Geol Survey, Box 25046, Denver, CO 80225 USA; 2.Kyoto Univ, Disaster Prevent Res Inst, Uji, Kyoto, Japan; 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China; 4.Univ Oregon, Dept Geol Sci, Eugene, OR 97403 USA |
推荐引用方式 GB/T 7714 | Schulz, William H.,Smith, Joel B.,Wang, Gonghui,et al. Clayey Landslide Initiation and Acceleration Strongly Modulated by Soil Swelling[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(4):1888-1896. |
APA | Schulz, William H.,Smith, Joel B.,Wang, Gonghui,Jiang, Yao,&Roering, Joshua J..(2018).Clayey Landslide Initiation and Acceleration Strongly Modulated by Soil Swelling.GEOPHYSICAL RESEARCH LETTERS,45(4),1888-1896. |
MLA | Schulz, William H.,et al."Clayey Landslide Initiation and Acceleration Strongly Modulated by Soil Swelling".GEOPHYSICAL RESEARCH LETTERS 45.4(2018):1888-1896. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论