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Geotechnical aspects of reconnaissance findings after 2020 January 24th, M6.8 Sivrice–Elazig–Turkey earthquake
Bulletin of Earthquake Engineering ( IF 3.8 ) Pub Date : 2021-05-04 , DOI: 10.1007/s10518-021-01112-1
Kemal Onder Cetin , Elife Cakir , Makbule Ilgac , Gizem Can , Berkan Soylemez , Alaa Elsaid , Faik Cuceoglu , Zeynep Gulerce , Aysegul Askan , Seckin Aydin , Mesut Gor

On January 24, 2020, Sivrice–Elazig–Turkey earthquake occurred along the East Anatolian Fault Zone. The moment magnitude of the event was reported as 6.8. This paper documents reconnaissance findings performed immediately after the event. Investigated sites namely, Lake Hazar shores, Karakaya Dam Reservoir–Euphrates River shores, Malatya–Battalgazi district and its villages, and Elazig Downtown are predicted to be shaken by rock peak ground acceleration, PGAVS30=1100 m/s, levels of 0.12–0.42 g, 0.05–0.11 g, 0.05 g, and 0.08 g respectively. The documented geotechnical field performances vary from widespread liquefaction-induced sand boils and lateral spreading, to no signs of surface manifestations of permanent ground deformations or soil liquefaction. In Battalgazi district and Elazig Downtown, the foundation performances vary from no signs of permanent ground deformations to 1–3 cm settlements, and 1–2 cm lateral movements. Additionally, the hydraulic structures inspected are estimated to be shaken by PGAVS30=1100 m/s levels of 0.03–0.23 g. Other than a minor longitudinal cracking along a limited section along the crest of a homogeneous earthfill dam, no apparent signs of permanent ground deformations were reported. Last but not least, a number of rock falls were mapped, based on back analyses of which probable peak ground velocities at these rockfall sites were speculated.



中文翻译:

2020年1月24日以后的M6.8西夫里奇-埃拉泽格-土耳其地震的勘测结果在岩土工程方面

2020年1月24日,东安纳托利亚断层带发生了西弗里斯-埃拉泽格-土耳其地震。据报道,该事件的严重程度为6.8。本文记录了事件发生后立即进行的侦查结果。被调查的地点,即哈扎尔湖沿岸,卡拉卡亚大坝水库-Euphrates河沿岸,马拉蒂亚-Battalgazi区及其村庄以及埃拉泽格市区,预计会受到岩峰地面加速度的震动,PGA VS30 = 1100 m / s,分别为0.12-0.42 g,0.05-0.11 g,0.05 g和0.08 g。有记录的岩土工程现场表现从广泛的液化引起的砂沸腾和侧向扩展,到没有地面永久变形或土壤液化的表面迹象都没有。在Battalgazi区和Elazig市区,地基性能从没有永久性地面变形到1-3 cm沉降和1-2 cm横向运动的迹象变化。此外,预计检查的水工建筑物会因PGA VS30 = 1100 m / s振动含量为0.03-0.23克。除了沿着均匀填土坝坝顶的有限部分沿纵向出现轻微裂缝外,没有发现明显的永久性地面变形迹象。最后但并非最不重要的一点是,根据对这些岩石落下地点可能出现的峰值速度的推测进行了反向分析,绘制了许多岩石落下图。

更新日期:2021-05-05
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