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Strength characteristics of soil rock mixture under equal stress and cyclic loading conditions
Fan YB(范永波); Adewuy OI; Feng C(冯春)
2015-01-02
发表期刊Geosystem Engineering
卷号18期号:1页码:73-77
ISSN1226-9328
摘要

Soil rock mixture (SRM) is a special geological material with non-uniform rock distribution, non-continuous cementation between rock and soil, and size effect structural characteristics, hence, possessing mechanical properties different from rock or soil. Field survey indicated that the surface layer of SRM above the rock slope was almost unstable under cyclic loading; however, at the same time, the slope itself was stable. This phenomenon exceeded initial judgments, thus it was important to study the mechanical characteristics of SRM under cyclic loading. Numerical simulation using continuum-based discrete element method was employed to study the strength degradation and failure mechanism of SRM under different frequencies, dynamic stress amplitudes and durations. Results show that the peak stress gradually increased with the increasing dynamic stress amplitude and frequency, but decreased with the increasing percentage of rock because the stiffness decreased greatly under cyclic loading. At the same time, the elasticity modulus decreased gradually with the dynamic stress amplitude and increasing frequency.

DOI10.1080/12269328.2014.1002633
收录类别EI
语种英语
力学所作者排名1
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77659
专题流固耦合系统力学重点实验室
推荐引用方式
GB/T 7714
Fan YB,Adewuy OI,Feng C. Strength characteristics of soil rock mixture under equal stress and cyclic loading conditions[J]. Geosystem Engineering,2015,18(1):73-77.
APA Fan YB,Adewuy OI,&Feng C.(2015).Strength characteristics of soil rock mixture under equal stress and cyclic loading conditions.Geosystem Engineering,18(1),73-77.
MLA Fan YB,et al."Strength characteristics of soil rock mixture under equal stress and cyclic loading conditions".Geosystem Engineering 18.1(2015):73-77.
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