岩土工程学报2024，Vol.46Issue(7)：1541-1548,8.DOI:10.11779/CJGE20230333
2023年2月6日土耳其双强震场地液化及其震害特征现场调查分析
In-situ investigation of site liquefaction and liquefaction-induced damages triggered by two strong Türkiye earthquakes on Feb.6th,2023
摘要
Abstract
The post-earthquake scientific investigation is one of the essentials for earthquake engineering.On the 6th of February,2023,two deadly earthquakes,whose magnitudes were Mw7.8 and Mw7.5,respectively,shook Southern-Central Turkey,caused significantly large casualties and tremendous economy loss.Through the in-situ site investigation,the liquefaction phenomena and related damages triggered by the two strong earthquakes were surveyed and preliminarily analyzed.The analytical results indicate:(1)The liquefactions induced by the earthquakes were significant,and distributed in a wide area,and caused severe damages to buildings;(2)the consequences of site liquefaction were observed as sand boils,lateral spread,ground subsidence and loss of site bearing capacity,which yielded damages to the residence buildings in great extent.(3)The liquefaction-induced lateral spread was observed in two investigation zones,and its distance ranged from meters to tens of meters,resulting in damage or demolishing of buildings.(4)In an investigation area of Golbasi City,tens of buildings were found subsided and tilting due to liquefaction-induced loss of soil bearing capacity.The subsidence of buildings ranged from tens of centimeters to 1～2 meters,and the tilting angles varied from several degrees to tens of degrees with the measured maximum angle of 20 degrees in tilt.Through the field survey of liquefaction triggered by the shocks and the analysis of liquefaction-induced consequences,the characteristics of liquefaction and the lessons learned are presented,and the findings are expected to be beneficial for liquefaction hazard mitigation in China.关键词
2023年土耳其地震/场地液化/液化震害特征/现场调查/地震科考Key words
2023 Türkiye earthquakes/site liquefaction/characteristics of liquefaction damage/in-site investigation/post-earthquake scientific investigation分类
建筑与水利引用本文复制引用
陈龙伟,刘昊儒,任叶飞,吴晓阳,袁晓铭..2023年2月6日土耳其双强震场地液化及其震害特征现场调查分析[J].岩土工程学报,2024,46(7):1541-1548,8.基金项目
中国地震局工程力学研究所基本科研业务费专项项目(2020B01) （2020B01）
