Yield stress history evaluated from paired in-situ shear moduli of different modes
Yield stress history evaluated from paired in-situ shear moduli of different modes
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DOI：
10.1016/j.enggeo.2012.11.001
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发表时间：
2013-01
影响因子：
7.4
通讯作者：
T. Ku;P. Mayne
中科院分区：
文献类型：
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作者：
T. Ku;P. Mayne
一个专门编制的来自有据可查的地质地点的不同方向和极化模式（HH、HV和VH波）的剪切模量数据库表明，刚度比（G 0、HH/G 0、VH）可用于评估屈服应力比（YSR）在土壤中。一般而言，这些地点的YSR参考剖面是通过对不同高程的原状样品进行一系列实验室固结试验，并结合对地层工程地质背景的充分了解而确定的。对于土壤中的应力历史评估，使用刚度比和附加变量从多元回归分析中推导出各种经验相关性。
A special compiled database of shear moduli from different directional and polarization modes (HH, HV, and VH waves) at well-documented geologic sites shows that stiffness ratio (G0,HH/G0,VH) can be used to assess the yield stress ratio (YSR) in soils. In general, the reference profiles of YSR for these sites were determined using series of laboratory consolidation tests on undisturbed samples at varied elevations, coupled with a good understanding of the engineering geology background of the formations. For stress history assessment in soils, various empirical correlations were derived from multiple regression analyses using the stiffness ratio and additional variables.