东海大桥风电场土动剪切模量与阻尼比试验研究  

Experimental study on dynamic shear modulus and damping ratio of foundation soil in Donghai Bridge Offshore Wind Farm

作　　者：石登登 颜超[1] 喻孟初 

机构地区：[1]上海理工大学环境与建筑学院,上海200093

出　　处：《山西建筑》2015年第13期57-59,共3页Shanxi Architecture

基　　金：国家自然科学基金资助项目(项目编号:51008194)

摘　　要：为了获得东海大桥海上风电场地基基础设计和建造的土动力参数,对东海大桥东部海域的9类原状海洋地基土进行动三轴试验,研究了剪应变幅值在5×10^-5-2×10^-2范围内海洋原状土的动剪切模量和阻尼比的变化规律,研究结果对实际工程有一定的借鉴作用。To obtain soil dynamic parameters of the foundation soil in Donghai Bridge Offshore Wind Farm, 9 sorts of undisturbed marine soil located in eastern coast of Donghai Bridge have been explored in detail through cyclic triaxial tests. The change law of the dynamic shear modulus and damping ratio of undisturbed marine soil is researched under the dynamic shear strain ranging from 5×10^-5-2×10^-2. The research results may be used as reference for practical projects.

关 键 词：海上风电场 地基土 动剪切模量 阻尼比 

分 类 号：TH133[机械工程—机械制造及自动化]