A numerical model for the simulation of debris flow triggering, propagation and arrest

被引:14
作者
D'Aniello, Andrea [1 ]
Cozzolino, Luca [2 ]
Cimorelli, Luigi [1 ]
Della Morte, Renata [2 ]
Pianese, Domenico [1 ]
机构
[1] Univ Naples Federico II, Dept Civil Architectural & Environm Engn, I-80125 Naples, Italy
[2] Univ Naples Parthenope, Dept Engn, Ctr Direz Napoli Isola C4, I-80143 Naples, Italy
关键词
Debris flows; Pyroclastic soils; Rainfall triggering; Slope stability analysis; Propagation; Finite volume method; CAMPANIA REGION; CONSOLIDATION; AVALANCHES; DEPOSITION; INITIATION; PRESSURE; BEHAVIOR; SLIDES; SCHEME; RUNOUT;
D O I
10.1007/s11069-014-1389-8
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
In this paper, it is described the development and the assessment of a 1D numerical procedure for the simulation of debris flow phenomena. The procedure focuses on: (1) the rainfall triggering, and the effects induced on slope stability by both rainfall infiltration and groundwater dynamics; (2) the possible inception of debris flows during the propagation phenomenon itself, due to the actions exerted on the slope by the already triggered flowing masses; (3) the propagation phenomenon over complex topographies; (4) the non-Newtonian internal dissipative processes that develop within the sediment-water mixture; (5) the effects induced by the evolution of the boundaries where the propagation phenomenon occurs; (6) the run-out and arrest phenomena. In order to show the performance and capabilities of the model, the results of its application to an analytic test and to laboratory experimental tests are first analyzed, and finally, the application to a plausible debris flow scenario, taken from a real case study, is discussed.
引用
收藏
页码:1403 / 1433
页数:31
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