Study on Site Classification and Seismic Parameters for the Soft Soil of Bohai Seabed Surface Layer

吕悦军; 彭艳菊; 施春花; 沙海军; 唐荣余; 孟小红

您当前的位置：

首页 >

文章列表页 >

Study on Site Classification and Seismic Parameters for the Soft Soil of Bohai Seabed Surface Layer

更新时间：2025-12-11

- Study on Site Classification and Seismic Parameters for the Soft Soil of Bohai Seabed Surface Layer
- Issue 3, Pages: 368-374(2008)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC： 315
- Published：2008
- 稿件说明：
移动端阅览
[1]吕悦军,彭艳菊,施春花,沙海军,唐荣余,孟小红.渤海海底表层软弱土特征及其对地震动的影响[J].防灾减灾工程学报,2008(03):368-374.

吕悦军, 彭艳菊, 施春花, et al. Study on Site Classification and Seismic Parameters for the Soft Soil of Bohai Seabed Surface Layer[J]. 2008, (3): 368-374.
[1]吕悦军,彭艳菊,施春花,沙海军,唐荣余,孟小红.渤海海底表层软弱土特征及其对地震动的影响[J].防灾减灾工程学报,2008(03):368-374. DOI：

吕悦军, 彭艳菊, 施春花, et al. Study on Site Classification and Seismic Parameters for the Soft Soil of Bohai Seabed Surface Layer[J]. 2008, (3): 368-374. DOI：

摘要

以渤海PL19-3油田工程场地为研究对象

利用钻探和剪切波速实测资料

根据中国规范GB50011-2001、美国规范FEMA-NEHRP和欧洲规范EC8

进行场地类别研究;通过地震动效应分析

得到海底表层软弱土对峰值加速度和反应谱的影响。结果表明

现行规范中的场地土类型划分标准是针对陆地场地土特征的

不能反映覆盖较厚的海底淤泥层的特征;海底表层软弱土对地震动加速度的幅值和频谱的影响非常明显

其对峰值加速度的放大倍数较高

但受土的非线性变形影响

随着地震动输入的增大

其放大倍数呈非线性降低

软土场地使得加速度反应谱谱形变宽

特征周期变大。本文的结果为开展海洋工程抗震标准、海域地震区划研究积累了相关基础资料。

Abstract

The site of oilfield PL19-3 in Bohai is studied in this paper.According to the Chinese Code GB50011-2001

the America Code FEMA-NEHRP and Europe Code EC8

we use the shear wave velocity and borehole data to study the site classification for soft soil site in Bohai seabed.The site seismic effect is analyzed and the influence of the soft soil of seabed on the design ground motion parameters are discussed.The results show that （1） the site classification in active Codes only fit to the land site

it can’t represent the real characteristics of the thicker silt layer of seabed;（2）the soft soil of seabed surface layer puts a remarkable effect on the magnitude and spectrum of the ground motion: the acceleration is magnified significantly due to the nonlinear deformation of the soil and the amplification factor is reduced nonlinearly with the increase of ground motion input;（3）the spectrum is broadened and the characteristic period is extended.The study will put forward the correlate study on the seismic technical codes and design criterion of the oceanic engineering in China.Furthermore

the results of the paper can provide the relate basic data for the seismic design criterion in oceanic engineering and a future seismic zoning of Chinese sea area.

关键词

Keywords

references

渤海某油田设计地震动参数及抗震设防标准研究 [J]. 彭艳菊,吕悦军,唐荣余,沙海军,赵建涛. 地震工程与工程振动 . 2007(04)

渤海PL19-3油田设计地震动参数研究 [J]. 吕悦军,唐荣余,刘育丰,王俊勤. 防灾减灾工程学报 . 2003(04)

场地条件对地震动影响研究的若干进展 [J]. 薄景山,李秀领,李山有. 世界地震工程 . 2003(02)

中国建筑抗震设计规范的演变与展望 [J]. 陈国兴. 防灾减灾工程学报 . 2003(01)

渤海湾海相淤泥土工程物理性质的初步研究 [J]. 牛作民. 海洋地质与第四纪地质 . 1986(03)

渤南油田工程地震研究[M]. 地震出版社 , 吕悦军等编著, 2003

Views

261

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Preliminary Study on Characteristics of Ground Motion at Permafrost Sites along Qinghai-Tibet Engineering Corridor

Study on Relative Variability of Ground-motion in Min-Zhang Region by Using Representative Site Parameters

Characteristic Analysis of Ground Motions of Step Bedrock Site under SH Seismic Waves

Research on Relative Displacement Response Spectrum of Adjacent Bridge Segments

Earthquake Motion and Co-seismic Deformation Response of Wenchuan M8.0 Earthquake at Xuzhou Seismic Station

Related Author

王建州

穆彦虎

马巍

陈拓

魏来

卢育霞

王良

刘琨

Related Institution

No data

⁰