Investigation of the Liquefaction Potential of Saturated Sands at Low Levels of Excitation and Earthquake Shaking
Investigation of the Liquefaction Potential of Saturated Sands at Low Levels of Excitation and Earthquake Shaking
批准号:
8411912
负责人:
H. Bolton Seed
金额:
$17.52万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1985
资助国家:
美国
项目状态:
已结题
起止时间:
1985-03-01 至 1988-12-31
中文摘要
本研究对低水平地震动引起的土壤液化现象进行了研究。到目前为止,关于土壤液化的工程研究结果对地震烈度和土壤液化之间的关系的了解有限。一般的假设是,液化发生在高烈度地震时(例如,在修正的梅塞利烈度表中高于烈度VI)。对这一现象的研究可能会为理解液化过程提供新的见解。将对非常松散到中等密度的饱和砂土进行循环三轴压缩试验,并确定触发液化的条件。将试验数据与中等水平地面震动下的液化分析结果进行关联。结果将确定初始应力条件和叠加动应力对斜坡渐进破坏可能性的影响。
英文摘要
This study investigates the phenomenon of soil liquefaction induced by low levels of ground shaking. The results of the engineering research on soil liquefaction, to date, provide only a limited understanding of the relationship between the earthquake intensity and soil liquefaction. The general assumption is that liquefaction occurs at high earthquake intensities (for example, above intensity VI in Modified Mercelli Intensity Scale). An investigation of this phenomena is likely to provide new insight into understanding the liquefaction process. A labortory test program will be conducted of cyclic triaxial compression tests on very loose to medium dense saturated sands and conditions will be determined that will trigger liquefaction. A correlation of the experimental data will be made with the analysis results of liquefaction at moderate levels of ground shaking. The results will establish the initial stress conditions and the effects of superimposed dynamic stresses on the potential for progressive failure of slopes.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Meeting of U. S. Universities Council for Geotechnical Engineering Research
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批准号:8615404
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项目类别:Standard Grant
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资助金额:$5.95万
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财政年份:1987
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负责人:H. Bolton Seed
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依托单位:
Learning from the Mexican Earthquake of September 19, 1985: Effect of Site Conditions on Ground Motion and Building Damage
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批准号:8611066
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项目类别:Standard Grant
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资助金额:$20.0万
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财政年份:1986
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负责人:H. Bolton Seed
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依托单位:
Performance of Mackay Dam During 1983 Mount Borah Earthquake
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批准号:8412366
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项目类别:Standard Grant
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资助金额:$9.98万
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财政年份:1984
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负责人:H. Bolton Seed
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依托单位:
Strength Characteristics of Soils Containing Large Particle Sizes
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批准号:8311985
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项目类别:Continuing Grant
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资助金额:$14.69万
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财政年份:1983
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负责人:H. Bolton Seed
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依托单位:
National Information Service For Earthquake Engineering
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批准号:8210196
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项目类别:Continuing Grant
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资助金额:$136.38万
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财政年份:1982
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负责人:H. Bolton Seed
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依托单位:
Investigation of Seismic Response and Field Performance of Prototype Earth Dams
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批准号:8110734
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项目类别:Standard Grant
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资助金额:$18.06万
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财政年份:1981
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负责人:H. Bolton Seed
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依托单位:
Evaluation of Three-Dimensional Effects on the Response of Earth Dams During Earthquakes
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批准号:7918267
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项目类别:Standard Grant
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资助金额:$11.19万
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财政年份:1979
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负责人:H. Bolton Seed
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依托单位:
Influence of Site Characteristics on the Damage During the October 1974 Lima Earthquake
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批准号:7703687
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项目类别:Standard Grant
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资助金额:$3.62万
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财政年份:1978
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负责人:H. Bolton Seed
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依托单位:
Analysis of the Seismic Stability of Earth Dams
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批准号:7521875
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项目类别:Standard Grant
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资助金额:$17.35万
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财政年份:1976
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负责人:H. Bolton Seed
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依托单位:
Analysis of Soil-Structure Interaction Effects For Massive Embedded Structures During Earthquakes
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批准号:7406420
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项目类别:Standard Grant
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资助金额:$10.96万
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财政年份:1974
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负责人:H. Bolton Seed
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依托单位:
海外基金