Start Date
18-12-2020 9:10 AM
Description
Abstract
A phenomenon of earthquakes known as liquefaction can cause severe damage and deformation to areas near an earthquake. Because of this, a focus of geotechnical engineering is the mitigation of these effects. In order for liquefaction’s effects to be best mitigated, the desired soil’s liquefaction resistance must be evaluated. The evaluation of a soil’s liquefaction is based on a curve called the CRR curve, which is typically developed from a particular aspect of one of the four main field tests used for the evaluation of a soil’s liquefaction resistance. However, these curves do not always lead to the accurate evaluation of a soil’s liquefaction resistance, and as a result, many revisions have been made over time to the CRR curves and the tests used to develop these curves in the hopes of best evaluating soils’ liquefaction resistance. While these revisions have led to more accurate CRR curves, there are still cases in which these curves lead to the inaccurate evaluation of a soil’s liquefaction resistance, which suggests that future revisions can be made. This proposal strives to determine which test aspects are in most need of improvement in order to promote the continued improvement of a soil’s liquefaction resistance evaluation.
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The Improvement of Field Tests Used for the Evaluation of a Soil's Liquefaction Resistance
Abstract
A phenomenon of earthquakes known as liquefaction can cause severe damage and deformation to areas near an earthquake. Because of this, a focus of geotechnical engineering is the mitigation of these effects. In order for liquefaction’s effects to be best mitigated, the desired soil’s liquefaction resistance must be evaluated. The evaluation of a soil’s liquefaction is based on a curve called the CRR curve, which is typically developed from a particular aspect of one of the four main field tests used for the evaluation of a soil’s liquefaction resistance. However, these curves do not always lead to the accurate evaluation of a soil’s liquefaction resistance, and as a result, many revisions have been made over time to the CRR curves and the tests used to develop these curves in the hopes of best evaluating soils’ liquefaction resistance. While these revisions have led to more accurate CRR curves, there are still cases in which these curves lead to the inaccurate evaluation of a soil’s liquefaction resistance, which suggests that future revisions can be made. This proposal strives to determine which test aspects are in most need of improvement in order to promote the continued improvement of a soil’s liquefaction resistance evaluation.
Comments
Mentor: Joseph Weber