Methodologies to Assess SASWShearWave Velocity Uncertainty

机译：评估SASWShearWave速度不确定度的方法

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The study presented herein documents procedures to assess uncertainty in shear wave velocity determined via SASW, and demonstrates use of these uncertainty estimates to guide the inversion process to provide a quality, realistic shear wave velocity profile. Based upon the analyses performed, the inversion protocol guided by uncertainty estimates is shown to successfully invert dispersion data. For the site example presented, the trend in shear wave velocities determined via the protocol is quite consistent with the material classification and standard penetration test results available for the site. It is shown that uncertainty in shear wave velocity is a function of the number of soil layers used in the inversion. As the number of layers increases, uncertainty in shear wave velocity also increases. The results also suggest that the layer resolution of SASW inversion on soil sites is approximately 0.3048 m (1 ft).

机译：本文介绍的研究记录了评估通过SASW确定的剪切波速度不确定度的程序，并演示了使用这些不确定度估算值来指导反演过程，以提供高质量，切合实际的剪切波速度曲线。基于所执行的分析，以不确定性估计为指导的反演协议显示成功地反演了色散数据。对于给出的现场示例，通过协议确定的剪切波速度趋势与现场可用的材料分类和标准穿透测试结果非常一致。结果表明，剪切波速度的不确定性是反演中所用土壤层数的函数。随着层数的增加，剪切波速度的不确定性也增加。结果还表明，土壤位点上SASW反演的层分辨率约为0.3048 m（1 ft）。

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来源
《Geotechnical Engineering in the Information Technology Age》|2006年|P.1-6|共6页
会议地点 Atlanta GA(US)
作者
Dennis R. Hiltunen; Karen T. Marosi; Jason M. Gardner;
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University of Florida, Department of Civil and Coastal Engineering, 365 Weil Hall, P. O. Box 116580, Gainesville, FL 32611;

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原文格式 PDF
正文语种 eng
中图分类土力学、地基基础工程;
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Methodologies to Assess SASWShearWave Velocity Uncertainty

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