Acoustic signals and geophone response of rainfall-induced debris flows
文献类型：期刊论文
| 作者 | Chou, Hsien-Ter1; Chang, Yu-Lung1; Zhang, Shu-Cheng2,3 |
| 刊名 | JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS
 |
| 出版日期 | 2013 |
| 卷号 | 36期号:3页码:335-347 |
| 关键词 | infrasound geophones debris flows Houyenshan Hilbert-Huang transform rainfall |
| ISSN号 | 0253-3839 |
| 通讯作者 | Chou, HT |
| 英文摘要 | The infrasound and geophone response of rainfall-induced debris flows are explored based on field studies. Both the stony-type debris flow which occurred in Houyenshan, Miaoli County, Taiwan, on 10 June 2006 and the muddy viscous debris flow which occurred in Jiangjia Gully, Yunnan, China, on 11 August 2007 were examined. Infrasound propagates a long distance in the atmosphere at the speed of sound due to its low adsorption in the air and the high reflectivity of the ground. The infrasonic signals induced by debris flows are related to the magnitude and composition of the debris flows. Our findings show that the peak acoustic frequencies for the Houyenshan stony debris flows are within the range 15-40 Hz, while the corresponding geophone signals exhibit peak frequencies within 15-50 Hz. The peak frequencies of the viscous debris flows in Jiangjia Gully fell within the range 5-13 Hz. During the propagation of debris flows, the amplitude of air pressure in Houyenshan was generally greater than 1.0 Pa, and the ground velocity greater than 0.2 mm/s. The Hilbert-Huang transform approach is adopted to analyze the non-stationary acoustic signals of the debris flows. Stony-type debris flows tend to occur in Houyenshan, Taiwan, once the total rainfall exceeds 67mm preceded by heavy hourly rainfall. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Multidisciplinary |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | DURATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000318160600005 |
| 公开日期 | 2013-06-24 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5463]  |
| 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.Natl Cent Univ, Dept Civil Engn, Chungli 32054, Taiwan 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China 3.Minist Water Resources, Chengdu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chou, Hsien-Ter,Chang, Yu-Lung,Zhang, Shu-Cheng. Acoustic signals and geophone response of rainfall-induced debris flows[J]. JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS,2013,36(3):335-347. |
| APA | Chou, Hsien-Ter,Chang, Yu-Lung,&Zhang, Shu-Cheng.(2013).Acoustic signals and geophone response of rainfall-induced debris flows.JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS,36(3),335-347. |
| MLA | Chou, Hsien-Ter,et al."Acoustic signals and geophone response of rainfall-induced debris flows".JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS 36.3(2013):335-347. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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