Nonlinear evolutionary mechanisms of Burridge-Knopoff model of planar-slip slope instability

SUN Qiang; MA Ping; LI Hou-en

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Nonlinear evolutionary mechanisms of Burridge-Knopoff model of planar-slip slope instability

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- Nonlinear evolutionary mechanisms of Burridge-Knopoff model of planar-slip slope instability
- Vol. 29, Issue 2, (2008)
- 作者机构：
  
  中国科学院地质与地球物理研究所,北京,100029
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB115
- Online First：10 July 2013，
  
  Published：2008
- 稿件说明：
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SUN Qiang, MA Ping, LI Hou-en. Nonlinear evolutionary mechanisms of Burridge-Knopoff model of planar-slip slope instability[J]. 2008, 29(2).
DOI：

SUN Qiang, MA Ping, LI Hou-en. Nonlinear evolutionary mechanisms of Burridge-Knopoff model of planar-slip slope instability[J]. 2008, 29(2). DOI：

摘要

采用B-K模型（Burridge-Knopoff）对斜坡进行了分析。B-K模型考虑了外部加载、滑带介质内部作用、滑体质量、坡面摩擦等影响斜坡稳定的4个主要因素。对模型进行了两种简化，第一种简化是取的情况，忽略的影响，对应的是滑面比较“软弱”的斜坡，是从斜坡系统的本构方程以及形变能的角度考察的；第二种简化是直接从力学与运动学的角度简化的，取的情况，忽略的影响，对应的是滑面比较“坚固”斜坡。由B-K模型的一些性质，例如，确定性浑沌、自组织等能够为理解斜坡演化和斜坡失稳预测问题提供有用的线索。

Abstract

Regarding the Burridge-Knopof (B-K) spring block model as a conceptual model for the physics of earthquakes has attracted much attention among physicists and seismologists. In this paper

the B-K model is used to analyze the slope instability. There are certain characteristics of the B-K model such as deterministic chaos，self-organization，etc.

which provide heuristic clues to understanding of the nature of sliding slope and shed light on the instability of slope prediction．

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