A two-dimensional snow creep model for alpine terrain

被引：16
|
作者：
Teufelsbauer, H. [1 ]
机构：
[1] Univ Nat Resources & Appl Life Sci, Inst Mt Risk Engn, Dept Struct Engn & Nat Hazards, A-1180 Vienna, Austria
来源：
NATURAL HAZARDS | 2011年 / 56卷 / 02期
关键词：
Snow creep; Snow viscosity; Snow pressure; Viscous Poisson ratio; Snowpack model; PHYSICAL SNOATACK MODEL; NUMERICAL-MODEL; TRIAXIAL TESTS; SLAB RELEASE; PART II; TEMPERATURE; MICROSTRUCTURE; DEFORMATION; MECHANICS; BEHAVIOR;
D O I：
10.1007/s11069-010-9515-8
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The paper is focused on the investigation of snow creep and settlement of alpine snowpacks. A detailed investigation of the constitutive behavior of snow for long-term creeping under low-strain rates is provided. The snowpack is considered as a compressible, viscous fluid. An assumption for a temperature and density-dependent viscosity and viscous Poisson ratio is provided in this paper, based on observations in nature and laboratory. The provided model is particularly applicable for settlement calculation of seasonal alpine snowpacks and computation of reaction forces on obstacles. The model is evaluated by numerous laboratory and field experiments. Different case studies are provided in this paper.
引用
收藏
页码：481 / 497
页数：17
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