caa a22 4500 605454876 CHVBK 20210128100209.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s10064-014-0627-3 doi (NATIONALLICENCE)springer-10.1007/s10064-014-0627-3 An instrumented flume to investigate the initiation mechanism of the post-earthquake huge debris flow in the southwest of China [Elektronische Daten] [W. Hu, Q. Xu, C. Rui, R. Huang, T. van Asch, X. Zhu, Q. Xu] The 2008 Wenchuan Earthquake in SW China in the Sichuan Province generated many co-seismic landslides, which delivered a huge amount of loose co-seismic landslide deposits. It caused a dramatic increase in debris flow occurrence in the subsequent years. The mechanism of these runoff debris flows has not been completely understood. The study of the complexity of the phenomenon, such as runoff-induced erosion in initially unsaturated granular deposits, and damming and breaching effects caused by instability in gully banks due to erosion, requires the use of a well-equipped flume. To this aim, an instrumented flume was built at Chengdu University of Technology for the study of the initiation mechanism. Advanced equipment such as the 3D laser scanner was used to monitor the change in tomography of the slope during the test. And some sensors for unsaturated soils such as TDR and tensiometers were installed to capture the change of hydraulic properties of soil. Especially, the erosion was analyzed quantitatively by collecting the washing-out material every 20s. The preliminary experimental results are very encouraging for investigating the initial mechanism of debris flow. The erosion curve was obtained, and the damming and breaching effect was found to be of key importance to the initiation process. Springer-Verlag Berlin Heidelberg, 2014 Instrumented flume test nationallicence Debris flow nationallicence Unsaturated loose deposits nationallicence Erosion nationallicence Hu W. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut Xu Q. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut Rui C. Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, China aut Huang R. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut van Asch T. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut Zhu X. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut Bulletin of Engineering Geology and the Environment Springer Berlin Heidelberg 74/2(2015-05-01), 393-404 1435-9529 74:2<393 2015 74 10064 https://doi.org/10.1007/s10064-014-0627-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10064-014-0627-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hu W. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut NATIONALLICENCE 700 1- Xu Q. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut NATIONALLICENCE 700 1- Rui C. Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, China aut NATIONALLICENCE 700 1- Huang R. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut NATIONALLICENCE 700 1- van Asch T. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut NATIONALLICENCE 700 1- Zhu X. State Key Laboratory of Geo-Hazard Prevention and Geo-Environment Protection, Chengdu, University of Technology, 650023, Chengdu, People's Republic of China aut NATIONALLICENCE 773 0- Bulletin of Engineering Geology and the Environment Springer Berlin Heidelberg 74/2(2015-05-01), 393-404 1435-9529 74:2<393 2015 74 10064