Assessment of the efficacies of correction procedures for multiple thin layer effects on Cone Penetration Tests
Assessment of the efficacies of correction procedures for multiple thin layer effects on Cone Penetration Tests
复制标题
锥入度试验中多个薄层效应校正程序的有效性评估
DOI:
10.1016/j.soildyn.2021.106677
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发表时间:
2021
影响因子:
4
通讯作者:
Cooper, Jon
中科院分区:
文献类型:
--
作者:
Yost, Kaleigh M.;Green, Russell A.;Upadhyaya, Sneha;Maurer, Brett W.;Yerro-Colom, Alba;Martin, Eileen R.;Cooper, Jon
Multiple interbedded fine-grained layers in a sand deposit have a “smoothing” effect on the measured Cone Penetration Test (CPT) tip resistance (qc), resulting in a significant underestimation of the predicted liquefaction resistance of the sand layers. Trends identified by De Lange [14] through calibration chamber tests on stratified sand-clay profiles are used herein to develop a new thin-layer correction procedure forqc(the “Deltares” procedure). The efficacies of the Deltares and the independently-developed Boulanger and DeJong [6] procedures are both directly assessed using CPT data from calibration chamber tests and indirectly inferred from CPT-based liquefaction case histories in Christchurch, New Zealand. The results highlight limitations of the assessed thin-layer CPTqccorrection procedures for layers less than 40 mm thick. Multiple, interbedded thin layers also influence the measured CPT sleeve friction (fs), but in a more complex way than they influenceqc. To-date, no procedures have been proposed to address all the thin-layer-effects phenomena on the measuredfs, with errors in properly characterizing thefsof a layer inherently influencing the accuracy of predicting the liquefaction susceptibility and potential of the layer. In totality, the thin-layer-effects correction procedures proposed to-date generally result in slightly less accurate predictions of the observed liquefaction severity for cases having highly stratified profiles, opposite of what would be expected and desired.
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DOI:
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发表时间:
2015
期刊:
影响因子:
--
作者:
M. Stringer;C. Beyzaei;M. Cubrinovski;J. Bray;M. Riemer;M. Jacka;F. Wentz
通讯作者:
F. Wentz
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
B. Maurer;R. Green;S. V. Ballegooy;B. Bradley;S. Upadhyaya
通讯作者:
S. Upadhyaya
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
R. Green;B. Maurer;M. Cubrinovski;B. Bradley
通讯作者:
B. Bradley
DOI:
10.1201/9780429505980-2
发表时间:
2018-06
期刊:
--
影响因子:
--
作者:
R. Boulanger;J. DeJong
通讯作者:
R. Boulanger;J. DeJong
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
D. Saussus;J. D. Frost;J. DeJong
通讯作者:
J. DeJong