A study on the liquefaction of gravely soils such as Masa

马萨等砾石土的液化研究

基本信息

  • 批准号:
    08680486
  • 负责人:
  • 金额:
    $ 1.54万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    1996
  • 资助国家:
    日本
  • 起止时间:
    1996 至 1997
  • 项目状态:
    已结题

项目摘要

Soil conditions of liquefied gravely soils by two earthquakes, 1995 Hyogoken-nambu earthquake and the 1931 Nishi-saitama earthquake was studied by several laboratory tests and literature surveys. In the Hyogoken-nambu earthquake, a gravely sand named Masa was liquefied at many reclaimed lands in and around Kobe City. Liquefaction strength of undisturbed samples was studied at first by cyclic triaxial tests. Then two kinds of efrects on the liquefaction strength of Masa, saturation ratio and alternation of strata were studied. In the first effect, undrained cyclic triaxial tests were carried out to demonstrate the difference of liquefaction strength between saturated and partial saturated samples. Test results showed that liquefaction strength increased with the decrease of saturation ratio. In the second tests, two types of samples, mixed of grains uniformly and sorted of grains into three grain sizes, were prepared. Test results showed that liquefaction strength of two types of samples had no difference.Soil investigation data and reports on the damage were collected for the 1931 Nishi-saitama earthquake. Based on these data, soil condition of liquefied sites were evaluated. Liquefied sites were mainly old river channel and natural levee. Gravely soil layrs were found at some liquefied sites.
通过大量的实验室试验和文献调查,研究了1995年兵库县南部地震和1931年西玉地震两次地震引起的严重液化土壤的土壤条件。在兵库县南部地震中,科比市及其周边地区的许多填海土地上,一种名为Masa的严重沙子被液化。首先通过动三轴试验研究了原状土样的液化强度。研究了饱和度和地层变化对粉砂液化强度的影响。在第一个效应中,进行了不排水循环三轴试验,以证明饱和和部分饱和样品的液化强度的差异。试验结果表明,液化强度随饱和度的减小而增大。在第二次试验中,制备了两种类型的样品,即均匀混合的颗粒和分选成三种颗粒尺寸的颗粒。试验结果表明,两种试样的液化强度没有差异。收集了1931年西玉地震的土壤调查数据和破坏报告。在此基础上,对液化场地的土壤条件进行了评价。液化场地主要为古河道和天然堤。部分液化场地出现严重土层。

项目成果

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安田 進: "試料の互層状態がまさ土の液状化強度に与える影響" 第33回地盤工学研究発表会. (1998)
Susumu Yasuda:“样品的交替层条件对马萨土液化强度的影响”第 33 届岩土工程研究会议(1998 年)。
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"試料の互層状態がまさ土の液状化強度に与える影響" 第33回地盤工学研究発表会. (1998)
“样品的交替层条件对马萨土液化强度的影响”第33届岩土工程研究会议(1998)。
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安田進: "液状化にともなう護岸背後地盤の流動範囲に影響を与える要因" 土木学会第2回阪神・淡路震災に関する学術講演会. 113-120 (1997)
Susumu Yasuda:“由于液化而影响海堤后面地面流动范围的因素”,第 2 届阪神淡路地震学术会议,日本土木工程学会 113-120(1997 年)。
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安田 進: "まさ土の液状化特性に与える飽和度と粒度の影響" 第10回日本地震工学シンポジウム. (1998)
Susumu Yasuda:“饱和度和颗粒尺寸对马萨土液化特性的影响”第 10 届日本地震工程研讨会(1998 年)。
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安田進: "ポートアイランドのまさ土の液状化強度と地盤の密度の関係" 土木学会第2回阪神・淡路震災に関する学術講演会. 107-112 (1997)
安田进:“港岛马萨土的液化强度与地面密度的关系”第 2 届阪神淡路地震学术讲座,日本土木工程学会 107-112(1997 年)。
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YASUDA Susumu其他文献

YASUDA Susumu的其他文献

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{{ truncateString('YASUDA Susumu', 18)}}的其他基金

Study on the liquefaction-induced damage to structures during huge earthquakes by focusing on long time ground shaking
以长时间地面震动为研究对象,研究大震期间结构液化损伤
  • 批准号:
    26420487
  • 财政年份:
    2014
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Study on the appropriate method to evaluate the seismic stability of the existing banks in housing lots
住宅区现有岸堤抗震稳定性评价适宜方法研究
  • 批准号:
    23560595
  • 财政年份:
    2011
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Study on the differential settlement of structures due to soil liquefaction
土体液化引起的结构不均匀沉降研究
  • 批准号:
    19560496
  • 财政年份:
    2007
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Study on the rational design method for treating area against liquefaction based on performance-based design
基于性能设计的防液化处理区合理设计方法研究
  • 批准号:
    16560435
  • 财政年份:
    2004
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Study on the allowable deformation of structures in liquefied grounds and appropriate measures against liquefaction
液化地基结构允许变形及防液化措施研究
  • 批准号:
    14550499
  • 财政年份:
    2002
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
A study on the effect of countermeasures against liquefaction under strong shaking
强震动作用下抗液化对策效果研究
  • 批准号:
    11650512
  • 财政年份:
    1999
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
A study on liquefaction of volcanic soils including a sedimentation of gravely debris avalanche
火山土液化包括砾石崩塌沉积的研究
  • 批准号:
    06680434
  • 财政年份:
    1994
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
A Study on Damages of Lifeline Facilities due to Soil Liquefaction
土壤液化对生命线设施损害的研究
  • 批准号:
    62460156
  • 财政年份:
    1987
  • 资助金额:
    $ 1.54万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)

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过去地震史对致密沙地液化特性及其上层建筑抗震性能的影响研究
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液化诱发流引起的地表非液化地面运动及其对结构的影响
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  • 财政年份:
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地基抗液化土流抗震研究
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阿塞拜疆巴库市基础设施重建调查研究-从防震减灾的角度-
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