Study on Liquefaction Countmeasure Technique for Existing Residential Houses


Abstract eng:
During the 2011 Great East Japan Earthquake in Japan, extreme liquefaction caused extensive damage to residential houses in the Kanto Plain region and resulted settlements and tilts larger than that was observed during the past earthquakes. This paper deals with a proposal of ground improvement technique by installing logs into loose sand layer as a soil liquefaction countermeasure for existing residential houses. First, a demand for countermeasure of residential houses and reasonable cost of construction were shown by questionnaire surveys. Next, small-scale shaking table tests were carried out to propose how to apply the technique of log pilling around existing residential house. As a result, the magnitude of settlements of the house which was improved by log piling with an inclination and the fixed top of logs became quite small.

Contributors:
Conference Title:
Conference Title:
16th World Conference on Earthquake Engineering
Conference Venue:
Santiago (CL)
Conference Dates:
2017-01-09 / 2017-01-13
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.



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 Record created 2017-01-18, last modified 2017-01-18


Original version of the author's contribution as presented on USB, paper 631.:
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