【摘要】 在试验观测的基础上 ,本文首次提出了场地微动各向异性的概念 ,并从弹性波理论出发 ,对各向异性场地微动进行了研究 ,分析了场地微动各向异性的机制。这对于深入研究各向异性场地条件下场地动力特性、预测地震动特性、结构抗震研究具有非常重要的意义。更多还原

【Abstract】 At present, the study of theory and the engineering application on ground microtremor are based on the hypothesis of isotropy basically. In fact, the characteristic of the soil is usually anisotropy. In this paper, the conception of the ground microtremor in anisotropy has been put forward. Based on the theory of elastic wave in anisotropy medium, the characteristics of the ground microtremor is analyzed.And also the mechanism of the ground microtremor has been studied in this paper.Its very important for determining the dynamic properties of the soil, predicting the characteristics of ground seismic, and studying of the shock resistance of the architecture.更多还原