Insights from liquefaction ejecta case histories for the 2010–2011 Canterbury earthquakes
Insights from liquefaction ejecta case histories for the 2010–2011 Canterbury earthquakes
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2010 年至 2011 年坎特伯雷地震液化喷射物案例历史的见解
DOI:
10.1016/j.soildyn.2023.108267
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发表时间:
2024
影响因子:
4
通讯作者:
Bray, Jonathan D.
中科院分区:
文献类型:
--
作者:
Mijic, Zorana;Bray, Jonathan D.
A database of detailed liquefaction ejecta case histories for the 2010–2011 Canterbury earthquakes is interrogated. More than 50 mm of ejecta-induced settlement occurred at thick, clean sand sites shaken by PGA6.1= 0.35–0.70g(wherein PGA6.1is the peak ground acceleration for a Mw6.1 earthquake), whereas ejecta-induced settlement at highly stratified silty soil sites did not exceed 10 mm even when PGA6.1exceeded 0.45g. Cone penetration test-based liquefaction-induced damage indices that do not consider soil-system response effects, such as post-shaking hydraulic mechanisms, overestimate the severity of ejecta at stratified silty soil sites. Considering post-shaking hydraulic mechanisms captures the lack of ejecta at stratified silty soil sites. It also improves the estimation of ejecta severity at clean sand sites with severe-to-extreme ejecta. Strongly shaken clean sand sites that did not produce ejecta typically had thick strata with high tip resistances, thick non-liquefiable crusts, or deeper non-liquefiable strata overlying liquefiable strata. Ejecta-induced fissures formed in the non-liquefiable crust during the Feb 2011 earthquake which liquefied soil at depth could exploit to produce ejecta during the Jun 2011 earthquake. When significant ejecta formed on the roads, elevated adjacent ground with houses typically had negligible ejecta.
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DOI:
10.1061/(asce)gt.1943-5606.0002506
发表时间:
2021
影响因子:
3.9
作者:
Daniel Hutabarat;J. Bray
通讯作者:
J. Bray
DOI:
10.1061/(asce)gt.1943-5606.0002744
发表时间:
2022
影响因子:
3.9
作者:
Danny Hutabarat;J. Bray
通讯作者:
J. Bray
DOI:
10.1061/jggefk.gteng-11242
发表时间:
2023
影响因子:
3.9
作者:
Bray, Jonathan D.;Olaya, Franklin R.
通讯作者:
Olaya, Franklin R.
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
Z. Mijić;J. Bray;M. Riemer;Sean D. Rees;M. Cubrinovski
通讯作者:
M. Cubrinovski
DOI:
10.1061/(asce)gt.1943-5606.0002503
发表时间:
2021
影响因子:
3.9
作者:
Daniel Hutabarat;J. Bray
通讯作者:
J. Bray