IMHE OpenIR  > 山地灾害与地表过程重点实验室
加筋土挡墙屈服加速度与永久位移特性的拟动力法研究
Alternative TitleComputation of Sliding Displacements of Reinforced Soil Wall by Pseudo-dynamic Method
袁卓亚1; 王卫山2; 上官甦3; 宋彬4; 王娟5; 何思明5,6
Corresponding Author何思明
2017
Source Publication灾害学
ISSN1000-811X
Volume32Issue:2Pages:18-25
Other Abstract

加筋土挡墙具有良好的抗震性能,广泛应用于地震带边坡加固防护工程,但是其强震荷载下的力学行为仍未有全面认识。而传统的拟静力法和安全系数控制设计方法不能考虑地震加速度时程特征,与地震作用的真实情况不符。该文在极限分析上限定理的基础之上,结合Newmark理论,采用拟动力法,考虑地震加速度的时程变化特征,推导计算加筋土挡墙屈服加速度与永久位移的计算公式,研究地震作用下加筋土挡墙的动力响应。最后通过算例对该方法进行了验算,计算分析地震作用下加筋土挡墙的屈服加速度与永久位移,研究水平地震加速度和竖向地震加速度对加筋土挡墙稳定性的影响。并与传统的拟静力方法结果进行对比,研究结果显示:拟静力法设计的加筋土挡墙可能偏于保守,可能造成不必要的浪费,经济上不合理。

;

Reinforced soil wall has super aseismic performance,which is widely used in slope reinforcement engineer of the seismic zones,but the mechanical behavior under the earthquake loads haven't a fully understanding. The traditional pseudo static method and factor of safety control design method can't consider the time history character of seismic acceleration,and it is inconsistent to the real seismic action. In this study,based on the kinematic theorem of limit analysis the seismic,combined with the Newmark theory,using the pseudo-dynamic method to consider the time history character of seismic acceleration,the expressions of the yield acceleration and the permanent displacement of reinforced soil wall is derived. We then analyze the dynamic response of the reinforced soil wall. At last,a case is used to illustrate the method. The critical seismic yield acceleration coefficient and the seismic permanent displacement of reinforced soil wall under seismic loading are calculated. Meanwhile,the effect of the horizontal seismic acceleration and vertical acceleration effect on the stability of the slope with reinforced soil wall is analyzed. The comparison is made with the pseudo-static method. The results has shown that the pseudostatic method may give a conservative design for reinforced soil wall,it may cause unnecessary waste and not economically.

Keyword地震 加筋土挡墙 拟动力法 屈服加速度 永久位移
Subject AreaTu476.4
Indexed ByCSCD
Language中文
CSCD IDCSCD:5958021
Funding OrganizationNSFC-ICIMOD国际合作基金(41661144041) ; 交通运输部科技项目(2014364J03090)
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20754
Collection山地灾害与地表过程重点实验室
Affiliation1.中国交通建设股份有限公司西北分公司
2.西安公路研究院
3.中国公路工程咨询集团有限公司
4.陕西交通建设集团公司
5.中国科学院山地灾害与地表过程重点实验室
6.青藏高原卓越中心
Recommended Citation
GB/T 7714
袁卓亚,王卫山,上官甦,等. 加筋土挡墙屈服加速度与永久位移特性的拟动力法研究[J]. 灾害学,2017,32(2):18-25.
APA 袁卓亚,王卫山,上官甦,宋彬,王娟,&何思明.(2017).加筋土挡墙屈服加速度与永久位移特性的拟动力法研究.灾害学,32(2),18-25.
MLA 袁卓亚,et al."加筋土挡墙屈服加速度与永久位移特性的拟动力法研究".灾害学 32.2(2017):18-25.
Files in This Item:
File Name/Size DocType Version Access License
加筋土挡墙屈服加速度与永久位移特性的拟动(632KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[袁卓亚]'s Articles
[王卫山]'s Articles
[上官甦]'s Articles
Baidu academic
Similar articles in Baidu academic
[袁卓亚]'s Articles
[王卫山]'s Articles
[上官甦]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[袁卓亚]'s Articles
[王卫山]'s Articles
[上官甦]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 加筋土挡墙屈服加速度与永久位移特性的拟动力法研究_袁卓亚.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.