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首页> 美国政府科技报告 >A Simplified Procedure for Estimating Earthquake-Induced Deformations in Dams and Embankments,
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A Simplified Procedure for Estimating Earthquake-Induced Deformations in Dams and Embankments,

机译：估算大坝和堤防中地震引起的变形的简化程序，

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摘要

The inadequacy of the pseudo-static approach recommended by the International Committee on Large Dams,to predict the behavior of low embankments during earthquakes has been clearly recognized and demonstrated. The committee pointed out the need for early revision of the method which 'in several instances... predicts a safe condition for dams which are known to have had major slides.'This report presents a simplified procedure for the seismic design of small embankments. The method is an approximate one which uses the concept,originally proposed by Newmark,for calculating permanent deformations,but it is based on an evaluation of the dynamic response of the embankment rather than rigid body behavior. The method is applied to dams with heights in the range of 100to 200ft and constructed of compacted cohesive soils or very dense cohesionless soils. Design curves on the basis of analyzed cases are presented with an example problem. The method is an approximate one and involves simplifying assumptions. The design curves are averages based on a limited number of cases and should be updated as more data become available.

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