ESTIMATION OF EARTHQUAKE INDUCED SETTLEMENTS FOR LIFELINE ENGINEERINGS
ESTIMATION OF EARTHQUAKE INDUCED SETTLEMENTS FOR LIFELINE ENGINEERINGS
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生命线工程地震引起的沉降估算
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
S. Takada
中科院分区：
文献类型：
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作者：
K. Tanabe;S. Takada
本文针对生命线地震工程，提出了地震时地面沉降的估算公式。利用近5次大地震的404个地面沉降资料进行回归分析，得到了建议的计算公式。最大地面沉降由桑迪土层高度、路堤高度、最大地表加速度和桑迪土层N值的函数给出。给出了路堤和平地两种地质条件下的估算公式。为保证计算精度，将本文公式与其他研究者的两个结果进行了比较。将路堤沉降计算公式应用于其它台背回填土的沉降观测数据，并将平面沉降时最大沉降与桑迪土层高度的比值与室内试验结果进行了体积应变的比较。他们表现出了很好的一致性。
The present paper has proposed estimation formulae of ground settlement during earthquakes focused on lifeline earthquake engineerings. The proposed formulae were obtained by regression analysis using 404 data of the ground settlements in the past major five earthquakes. The maximum ground settlement is given by the function of height of sandy soil layer, embankment height, maximum ground surface acceleration and N-value of sandy soil layer. The estimation formulae were given for two cases of geological soil conditions; embankment and plane site. The proposed formulae were compared with following two results by other researchers to ensure the accuracy. The formula for embankment settlement was applied to other data of ground settlement observed on back fills around abutments, and also the ratio of the maximum ground settlement to the height of sandy soil layer at plane site settlement was compared with laboratory experimental results as to volumetric strain. They showed pretty good agreement.