文章摘要
杨立功,张宇亭,王欢.应变控制下深层黏土动弹性模量与阻尼比试验研究[J].地震工程学报,2020,42(1):199-204. YANG Ligong,ZHANG Yuting,WANG Huan.Experimental Study of Dynamic Elastic Modulus andDamping Ratio of Deep Clay under Strain Control[J].China Earthquake Engineering Journal,2020,42(1):199-204.
应变控制下深层黏土动弹性模量与阻尼比试验研究
Experimental Study of Dynamic Elastic Modulus andDamping Ratio of Deep Clay under Strain Control
投稿时间:2018-10-20  
DOI:10.3969/j.issn.1000-0844.2020.01.199
中文关键词: 深层黏土;动弹性模量;阻尼比;应变控制
英文关键词: deep clay;dynamic elastic modulus;damping ratio;strain control
基金项目:交通运输部天津水运工程科学研究院科研创新基金(TKS190504)
作者单位
杨立功 交通运输部天津水运工程科学研究院, 天津 300456 
张宇亭 交通运输部天津水运工程科学研究院, 天津 300456 
王欢 交通运输部天津水运工程科学研究院, 天津 300456 
摘要点击次数: 89
全文下载次数: 34
中文摘要:
      为研究天津滨海新区深层黏土动力特性,借助GDS动三轴仪器对应变控制条件下天津滨海新区深层黏土的动弹性模量及阻尼比的变化规律进行研究。每组试验中将相应深度土体上覆土层压力作为试验围压,其间只改变控制应变进行循环三轴试验。试验结果表明,土体动弹性模量、阻尼比受围压影响有一个限值,超过这个限值(约3倍参考围压),围压对土体动弹性模量、阻尼比影响很小,但土体动应变对其影响较大。
英文摘要:
      To research the dynamic properties of the deep clay in the Binhai new area, Tianjin, changes in the dynamic elastic modulus and damping ratios of the deep clay under strain control were studied using GDS dynamic triaxial apparatus. In every group of tests, the pressure of the overlaying soil at corresponding depth was set as the confining pressure, with the controlled strain as the only variable. Test results showed that the dynamic elastic modulus and the damping ratio of the soil were affected by the confining pressure in a fixed scope, while out of the scope (about three times referenced confining pressure), the influence of the confining pressure could be neglected. However, the influence of the dynamic strain of the soil on the dynamic elastic modulus and damping ratios was significant.
查看全文   查看/发表评论  下载PDF阅读器
关闭

您是第3421775位访问者
版权所有欢迎《地震工程学报》编辑部
主管单位:中国地震局 主办单位:中国地震局兰州地震研究所
清华大学
中国地震学会
中国土木工程学会
地  址: 甘肃省兰州市东岗西路450号 邮编:730000 电话:0931-8275892 E-mail: dzgcxb@gsdzj.gov.cn
本系统由北京勤云科技发展有限公司设计