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本文对土坝抗地震设计中有关地震荷载、土的动力性质、土坝地震稳定分析方法和防震工程措施等方面的问题,进行了综合论述.在土坝地震荷载方面,着重介绍了日本松村、物部和畑中,英国恩伯拉散斯(N.N.Ambraseys)和苏联那比脱伐列齐等人所做的工作,以及目前在苏联、日本和美国等土坝设计中关于士坝地震荷载估算方面的实际执行情况.关于土在地震动力作用下的特性方面,文中主要介绍和讨论了目前上坝地震动力分析理论中所采用的土的应力应变关系和阻尼问题,以及土坝地震稳定分析中所需考虑的土的抗剪强度和孔隙压力问题.关于土坝地震稳定分析方法和防震工程措施方面,文中在简单介绍了目前一般采用的土坝地震稳定静力分析方法之后,又根据世界上若干地震区土坝实际情况的记载,提出土坝防震工程措施的重要性,和在地震区设计土坝时应注意的问题.文中最后并提出了今后研究工作的初步意见.
This paper discusses comprehensively the issues related to seismic load, dynamic properties of soil, seismic stability analysis methods for earth dams, and earthquake prevention engineering measures in the seismic design of earth dams. In the seismic load of earth dams, the focus is on Matsumura, Japan. The work done by the Ministry of Objects and Suizhong, NNAmbraseys in the United Kingdom and Nabizhalelizi of the Soviet Union, and the estimation of the dam’s seismic load in the earth dam designs in the Soviet Union, Japan, and the United States. The actual performance of the earth. In terms of the characteristics of soil under seismic dynamics, the paper mainly introduces and discusses the current stress-strain relationship and damping problem of the soil used in the Shangba earthquake dynamic analysis theory, and the stability analysis of earth dams. The shear strength and pore pressure of the soil to be considered. With regard to earth-dam seismic stability analysis methods and earthquake-resistant engineering measures, the article briefly introduces the commonly used earth-dam seismic stability analysis methods, and The record of the actual situation of earth dams in the earthquake area puts forward the importance of Earthquake Earthquake Engineering measures and the issues that should be paid attention to when designing earth dams in the seismic area. The paper concludes with preliminary suggestions for future research.