000020139 001__ 20139
000020139 005__ 20170118182356.0
000020139 04107 $$aeng
000020139 046__ $$k2017-01-09
000020139 100__ $$aNumata, Atsunori
000020139 24500 $$aStudy on Liquefaction Countermeasure Technique By Using Logs With Drainage Function for Residential Houses

000020139 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020139 260__ $$b
000020139 506__ $$arestricted
000020139 520__ $$2eng$$aA technique of ground reinforcement by installing logs into loose saturated sand layer was proposed as a countermeasure against soil liquefaction. The principle of this method is based on compaction of soil. Because a target performance of the method is set against the Level 1 earthquake ground motions, it is necessary to improve the method by using other technique together or adding a new function in order to guarantee the seismic performance against Level 2 earthquake ground motions. The log with drainage function based on a water pressure dissipation method was proposed in this study. This log was made by opening holes in a core and on the surface. The principle of the method is to dissipate water pressure when an excess pore water pressure increases by Level 2. Small scale shaking table tests were conducted to evaluate the effectiveness of the piling log with drainage for a new and existing residential house. As a result, the log with drainage could reduce the rate of accumulation of excess pore water pressure and increase the velocity of its dissipation. Furthermore, the settlement of house could be mitigated because the effect of log with drainage improved liquefaction resistance and seismic performance.

000020139 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020139 653__ $$aliquefaction; log; drainage; residential house; shaking table test

000020139 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020139 720__ $$aNumata, Atsunori$$iMiwa, Shigeru$$iMiyajima, Masakatsu$$iYoshida, Masaho
000020139 8560_ $$ffischerc@itam.cas.cz
000020139 8564_ $$s455438$$uhttps://invenio.itam.cas.cz/record/20139/files/628.pdf$$yOriginal version of the author's contribution as presented on USB, paper 628.
000020139 962__ $$r16048
000020139 980__ $$aPAPER