软弱土层对中欧场地划分影响的比较

卢华喜; 梁平英; 仇早生

doi:10.13204/j.gyjz201002019

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软弱土层对中欧场地划分影响的比较

doi: 10.13204/j.gyjz201002019

1.
华东交通大学土木建筑学院,南昌330013

基金项目:

国家自然科学基金资助项目(50968007);江西省自然科学基金资助项目(2008GZC0057);江西省教育厅科学技术研究项目(GJJ09217)

详细信息

作者简介:
卢华喜,男,1976年出生,博士,副教授. E-mai:llhxi8516@yahoo.com.cn

中图分类号: TU435
计量
- 文章访问数: 128
- HTML全文浏览量: 11
- PDF下载量: 58
- 被引次数: 0
出版历程
- 收稿日期: 2009-08-15
- 刊出日期: 2010-02-20

COMPARATIVE ANALYSIS OF THE INFLUENCE OF SOFT SOIL LAYER ON SITE CLASSIFICATION BETWEEN CHINESE CODE GB 50011—2001 AND EUROCODE 8

1.
School of Civil Engineering,East China Jiaotong University,Nanchang 330013,China

摘要

摘要: 针对场地中存在软弱土层的多种情况,对中、欧场地划分的差异进行比较。通过对一般场地、20 m深度范围内含软弱夹层场地、20 m深度以下含软弱土层场地的剪切波速的计算,依据中国设计规范GB500112001、欧洲设计规范Eurocode 8分别进行场地划分。通过比较分析发现,Eurocode 8的场地分类对20 m深度范围内软弱夹层厚度的反应比GB 500112001更敏感,对20 m深度以下软弱土层厚度的考虑比GB 500112001更细致,建议中国抗震规范应进一步考虑软弱土层的影响,且将计算深度由20 m进一步向下延伸。
- 抗震设计 /
- 软弱土层 /
- 场地划分 /
- 比较
Abstract: For several sites with soft soil layer,the difference of site classification between Chinese code GB 500112001 and European code Eurocode 8 is studied in this paper.Firstly,the shear wave velocity of ordinary site,site with soft interlayer within 20 m depth,site with soft soil layer below 20 m depth is computed,and the site classification is classified according to GB 500112001 and Eurocode 8 respectively.Then,the comparative analysis is carried out,it is found that the thickness of soft soil layer is more vulnerable to change site classification of Eurocode 8 than that of GB 500112001 for site with soft interlayer within 20 m depth,which is considered more carefully in Eurocode 8 for site with soft soil layer below 20 m depth.It is suggested that the influence of soft soil layer should be further considered in China code,and the calculation depth should be further extended from 20 m.
- seismic design /
- soft soil layer /
- site classification /
- comparison