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[1]Mitsu OKAMURA.有效的防止高速公路路堤沙土液化对策执行成本的全尺度检验(英文)[J].地震研究,2017,40(01):45-51.
　Mitsu OKAMURA.Full Scale Test on Cost Effective Liquefaction Countermeasure for a Highway Embankment[J].Journal of Seismological Research,2017,40(01):45-51.
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有效的防止高速公路路堤沙土液化对策执行成本的全尺度检验(英文)(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
40
期数:
2017年01
页码:
45-51
栏目:
出版日期:
2017-03-20

文章信息/Info

Title:
Full Scale Test on Cost Effective Liquefaction Countermeasure for a Highway Embankment
作者:
Mitsu OKAMURA
Graduate School of Science and Engineering,Ehime University,Matsuyama,Japan
Author(s):
Mitsu OKAMURA
Graduate School of Science and Engineering,Ehime University,Matsuyama,Japan
关键词:
液化;  对策;  饱和度;  路堤
Keywords:
liquefaction; countermeasure; desaturation; embankment
分类号:
TU441
DOI:
-
摘要:
近年来,通过空气注射法稀释地基饱和度作为一种创新性并且具有成本效益的防止液化的技术得到了广泛关注。本文描述了一种现场空气喷射试验,旨在验证使用单一空气喷射器喷射更高喷射压力减少大面积区域饱和度的有效性。在试验中,空气被注射进公路路堤下方的可液化地基土体。观测结果显示:有效地降低了喷射器周围土壤的饱和度,并且喷射器的影响区域超过9米,该影响半径约为以往测试值的5倍,将直接大幅减少执行成本。
Abstract:
:Desaturation of ground by air injection attracts considerable attention in recent years as an innovative cost effective technique for liquefaction countermeasure.This paper describes an in-situ air injection test which aimed to verify effectiveness of the use of higher air injection pressures to desaturate very wide zone from a single air injector.In the test,air was injected in liquefiable foundation soils immediately below a highway embankment.Observations revealed that the soil around the injector was desaturated effectively and the zone of influence extended more than 9 m from the injector.This radius was about 5 times larger than that achieved in the past test,leading to a dramatic reduction in execution cost.

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2017-03-20