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Effect of membrane penetration on liquefaction resistance

Technology reports of the Yamaguchi University Volume 2 Issue 5 Page 529-541
published_at 1981-12
KJ00004351023.pdf
[fulltext] 673 KB
Title
Effect of membrane penetration on liquefaction resistance
Creators O-hara Sukeo
Creators Yamamoto Tetsuro
Source Identifiers
The liquefaction of saturated sand is due to a negative dilatancy. In the cyclic triaxial test, a part of pore water squeezed from sample is transformed into the reduction of membrane penetration and so the perfect undrained test can not be performed. Consequently, the liquefaction resistance obtained by the cyclic triaxial test is evaluated apparently larger than true value. In this paper, the method of correction of the liquefaction resistance is proposed by consideration of various experimental results. It is clear that the volume change of sample obtained by the undrained cyclic triaxial test is nearly equal to the expansive volume change of sample due to the decrease of effective stress. According to this relation, we considered that the liquefaction resistance obtained by the cyclic triaxial test can be corrected by means of the obtaining volumetric strain of sand structure concerned with the increase of pore pressure as the difference between expansive volume change and volume change been equivalent to the membrane penetration. This procedure is explained in Fig. 9 schematically.
Subjects
工学 ( Other)
Languages eng
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1981-12
File Version Version of Record
Access Rights open access
Relations
[ISSN]0386-3433
[NCID]AA0086073X
Schools 工学部