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The Use of Crosshole Tomography to Evaluate Drilled Shaft Repairs
Occasionally, a drilled shaft contains a defect that will significantly affect its performance under design loading and therefore requires remediation. These defects are commonly identified via crosshole sonic logging (CSL) and crosshole tomography (CT) testing techniques and verified via coring. CSL and CT testing can also define the extent and location of the defective zone, which assists in the development of the remediation procedure. In addition to identifying and quantifying defective zones, CSL and CT testing can be used to evaluate the quality of the completed repair. When used in conjunction with repair documentation and materials testing, comparison of CSL and CT testing conducted before and after the repair allows for both qualitative and quantitative assessment of the remediation. The following paper presents several case histories in which CSL/CT testing was effectively used in evaluating drilled shaft defect repairs.
The Use of Crosshole Tomography to Evaluate Drilled Shaft Repairs
Occasionally, a drilled shaft contains a defect that will significantly affect its performance under design loading and therefore requires remediation. These defects are commonly identified via crosshole sonic logging (CSL) and crosshole tomography (CT) testing techniques and verified via coring. CSL and CT testing can also define the extent and location of the defective zone, which assists in the development of the remediation procedure. In addition to identifying and quantifying defective zones, CSL and CT testing can be used to evaluate the quality of the completed repair. When used in conjunction with repair documentation and materials testing, comparison of CSL and CT testing conducted before and after the repair allows for both qualitative and quantitative assessment of the remediation. The following paper presents several case histories in which CSL/CT testing was effectively used in evaluating drilled shaft defect repairs.
The Use of Crosshole Tomography to Evaluate Drilled Shaft Repairs
Chernauskas, Les R. (author) / Hajduk, Edward L. (author)
International Foundation Congress and Equipment Expo 2009 ; 2009 ; Orlando, Florida, United States
Contemporary Topics in Deep Foundations ; 560-567
2009-03-10
Conference paper
Electronic Resource
English
The Use of Crosshole Tomography to Evaluate Drilled Shaft Repairs
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