Ground failures on reclaimed land during the 2011 Tohoku earthquake: A case study in Urayasu City, Japan

2016 ◽  
Vol 397 ◽  
pp. 555-562 ◽  
2020 ◽  
Vol 18 (2) ◽  
pp. 431-442
Author(s):  
Hajime Kojima ◽  
Yuji Kohgo ◽  
Kiyoshi Shimada ◽  
Daisuke Shoda ◽  
Hisato Suzuki ◽  
...  

Author(s):  
A. Kagawa ◽  
K. Furuno ◽  
T. Kusuda ◽  
Y. Sakai ◽  
T. Yoshida ◽  
...  

Abstract. The 2011 Tohoku earthquake caused major liquefaction-induced, ground deformation of the reclaimed land surrounding Tokyo Bay. In this area, liquefaction was visibly manifest by sand boils, ejection of sandy water, land subsidence and floating underground tanks. The level measurements show a correspondence between the degree of liquefaction-fluidization and the amount of subsidence. The strata most susceptible to liquefaction are hydraulically emplaced dredged fill and artificial strata on thick uncompacted Holocene deposits. On the other hand, the phenomena of seismic isolation coursed by liquefaction had saved the single-family houses from collapse.


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