Influence of Membrane Penetration on Liquefaction Resistance of Saturated Sands

飽和砂の液状化抵抗に及ぼすメンブレン貫入の影響

Influence of Membrane Penetration on Liquefaction Resistance of Saturated Sands

Creators Ohara Sukeo

Creators Yamamoto Tetsuro

Creators Wakamoto Akihiro

In this paper, we examine the relationship between pore-water pressure increase and volumetric strain corresponding to it in process of liquefaction of saturated sands, especially influence of membrane penetration. From a series of tests using cyclic triaxial test apparatus, it is found that membrane penetration in sand structure influences to disturb pore-water pressure increase. Therefore liquefaction resistance obtained from cyclic triaxial test apparatus is thought to be overestimated. Then we try to correct the liquefaction resistance by consideration of the effect of membrane penetration and make a comparison with the results obtained from other test apparatus.

[ISSN]0372-7661

[NCID]AN00244228