Large Deformation Analysis for Costal Geo-Disasters Using Continuum and Discrete Modeling

Large Deformation Analysis for Costal Geo-Disasters Using Continuum and Discrete Modeling
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使用连续体和离散模型对沿海地质灾害进行大变形分析

DOI:
10.1007/978-3-642-31671-5_2
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发表时间:
2013
期刊:
2023 IEEE IAS Global Conference on Emerging Technologies (GlobConET)
影响因子:
--
通讯作者:
K. Sawada
K. Sawada
中科院分区:
--
文献类型:
--
作者:
A. Yashima;Shuji Moriguchi;R. Uzuoka;H. Nonoyama;K. Sawada

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崩塌、滑坡、溃堤、液化、冲刷等地质灾害频繁发生。这些灾害对基础设施和人类活动造成了严重破坏。数值模拟是预测(1)破坏何时发生、(2)破坏发生在何处、(3)塌陷土体将流动多远以及(4)对结构物的冲击力有多大的有力工具之一。本文介绍了有限元法、计算流体力学、离散元法和SPH法等海岸带地质灾害数值模拟方法。本文将简要说明每种数值方法的原理。根据仿真结果,讨论了不同方法的优缺点。
Various kinds of geo-disasters have occurred, such as soil avalanches, landslides, failure of river dike, liquefaction and scoring. These disasters have caused serious damage to infrastructures and human activities. Numerical simulations are one of the powerful tools for predicting (1) when the failure will take place, (2) where the failure take place, (3) how far the collapsed soil mass will flow, and (4) how large the impact force to structures will be. In this paper, FEM, CFD, DEM and SPH are introduced as numerical methods for costal geodisasters. Brief explanation of theory of each numerical method will be described in this paper. Based on simulated results, advantages and disadvantages of different methods are discussed.
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