【作者】 齐文浩；

【导师】 薄景山；

【作者基本信息】 中国地震局工程力学研究所 ， 固体力学， 2004， 硕士

【摘要】 土层地震反应分析方法的研究是目前岩土地震工程研究领域的重要内容。土层地震反应分析技术也是当前工程场地地震安全性评价的核心技术之一，它可以直接为结构抗震提供有关的设计地震动参数。自20世纪70年代以来，国内外的地震工程学家和岩土工程学家开始着手这一领域的研究工作，并取得了一系列的有价值的研究成果，这些成果被广泛地应用于工程抗震领域。目前，国内外工程界广泛应用的DENSOR98，LSSRLI—1和SHAKE91等土层地震反应分析程序就是这一领域研究成果的代表。本文对这三个程序进行了比较和深入的研究，其目的是检验它们对解决同一问题所存在的差异，以便更好地在工程抗震中发挥作用。本文的主要研究内容包括： 1．总结了国内外土层地震反应分析的研究现状，对土体的动本构关系及土层地震反应分析方法进行了系统的分类总结和归纳，并进行了简要评述。 2．介绍了目前国内外广泛应用的三个土层地震反应分析程序，详细地介绍了三个程序的原理，功能及对计算参数的要求。对三个程序的功能进行了比较分析，对存在问题进行了简单评述。 3 对三个程序的计算结果进行了对比研究。本文以哈尔滨市轨道交通一期工程场地安全性评价的场地为例，利用已有的钻孔资料和有关试验资料，对三个程序的计算结果进行了比较分析。 4．利用我国唐山响瞠井下三维台阵的基岩和地表的强震记录对三个程序的计算结果进行了分析检验，研究了三个程序的计算结果与实际记录的差异，并给出了分析的结果和误差。 5．对今后这一领域进一步的研究工作提出了初步的建议。更多还原

【Abstract】 The study of the methods of soil layers seismic response analysis is an important content in geotechnical earthquake engineering study fields now. The technique of soil layers seismic response analysis is also one of core techniques in seismic safety evaluation of engineering sites currently, and it can directly provide related design ground motion parameters for structure seismic design. Since 1970’s, some earthquake engineers and geotechnists at home and abroad have been carrying on the study and have obtained a series of valuable results. The results have been wildly applied into engineering earthquake field.Now the programs DENSOR98, LSSRLI-1 and SHAKE91, which are used in engineering widely, are the representatives of the results in the field. In this paper, the three programs are compared and deeply studied in order to find out the difference of the three programs in solving the same problem, which make them serve the engineering earthquake better. The main contents in this paper are as follows:1. The study actuality about soil layers seismic response analysis at home and abroad are summarized, At the same time the dynamic constitutive models and the methods of soil layers seismic analysis are classified, summarized and briefly remarked.2. Three programs for soil layers seismic analysis are introduced. Their principles, functions and the requirements to input parameters are introduced in detail. The three programs’ functions are compared, analyzed and the existed problems are simply remarked.3. The results of the three programs are compared and studied. In this paper, some seismic safety evaluation site of Harbin track traffic the first period engineering are take as examples, and the computation results of three programs are compared and analyzed using the existed boreholes data and relative experiment data.4. The computation precisions of the three programs are analyzed and checked using strong earthquake records of measuring-drill’s bedrock and ground surface of three-dimensional Xiangtang Array in Tangshan. The differences between computation results of the three programs and the result of real records are studied, and the analysis results and their errors are both provided.II5. The future more works are provided.更多还原