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Alternative TitleStudy of dynamic sensitivity of rock slope under excitation function role of force increase mutation
王建国; 王振伟
Source Publication岩土力学
Other AbstractThe dynamic loading leads to instability and failure of rock slope. Especially, the role of force increase mutation has a great influence on slope stability. The rock mechanical properties are analyzed under static and dynamic loadings. And then, the nonlinear equation of rock slope is established. The dynamic deformation model of rock slope and the nonlinear dynamic response are studied. The amplitude of the sliding body suddenly increase, resulting in the sudden jump up and continue to increasing with the increase of the force, when the disturbance frequency to a certain extent. Conversely, the amplitude of the landslide suddenly reduces, resulting in the sudden decreases when the perturbation amplitude reduces to a certain extent. Tiny changes in initial conditions can cause a huge difference of the system response. The movement of the entire system can be regarded as an independent superposition of the two sports when the amplitude(A) is very small. As the amplitude(A) increases to more than its amplitude between the three singular points of the nonlinear system interval, the system can oscillate back and forth between these singular points. With the amplitude(A) increasing, the system changes from the period-doubling motion to mix sports. The results can provide guidance for the dynamic stability of the rock slope.
Keyword岩石边坡 力幅突变 激扰作用 动力敏感性
Subject Area岩体力学和土力学
Indexed ByEI ; CSCD
Funding Organization国家自然科学基金项目(No.51274122,No.50774046)
Citation statistics
Document Type期刊论文
Corresponding Author王建国
Recommended Citation
GB/T 7714
王建国,王振伟. 力幅突变激扰作用的岩石边坡动力敏感性研究[J]. 岩土力学,2013,34(6):1541-1545+1573.
APA 王建国,&王振伟.(2013).力幅突变激扰作用的岩石边坡动力敏感性研究.岩土力学,34(6),1541-1545+1573.
MLA 王建国,et al."力幅突变激扰作用的岩石边坡动力敏感性研究".岩土力学 34.6(2013):1541-1545+1573.
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