IMHE OpenIR  > 山地灾害与地表过程重点实验室
车辆荷载对支护桩主动土压力的影响分析
Alternative TitleAnalyzing the Effects of Active Earth Pressure on Supporting Piles under Vehicle Loads
邱洪志1,2; 孔纪名1; 王仁超1,2; 黄森旺1,2; 崔云1
Corresponding Author孔纪名
2016
Source Publication岩土工程学报
ISSN1000-4548
Pages101-108
Abstract通过现场车辆加载试验,测定加载过程中产生的加速度及桩后土压力,分析车辆的振动特性,得到了振动加速度随时间变化的关系式。进而基于极限平衡分析理论,得到了车辆荷载作用下桩后主动土压力的计算表达式,并讨论了水平振动加速度系数、土体内摩擦角、土体重度及桩-土外摩擦角对桩后主动土压力大小和分布的影响。结果表明:车辆行驶速度越大,引起的响应峰值加速度越大,产生的动土压力幅值越大。当车速相同,加载车辆与桩间距越大,产生的动土压力值越小。通过对文中车辆荷载作用下桩后主动土压力计算公式的验证,发现实测土压力值与理论分析结果吻合较好。因此,本文的土压力计算公式可作为车辆荷载作用下支护桩后主动土压力的计算依据。
Other AbstractThis paper determines the acceleration under loading conditions and soil pressure behind piles, gets an equation of the vibration acceleration changes over time, and analyzes the vehicle's vibration characteristic by means of the vehicle field
loading test. Based upon the limit equilibrium method, a method was presented for calculating the dynamic earth pressure on piles under vehicle loading. Effects of a wide range of parameters like vibration acceleration coefficient, wall friction angle, soil
friction angle, and the weight of the soil on active earth pressure have been studied. The result shows that the peak acceleration and the amplitude of dynamic soil pressure increase with vehicle speed. When the speed is same, dynamic soil pressure was
attenuated very fast with spacing of loading vehicle and the pile which changed in a sinusoidal fashion. By validating the proposed theory, it indicated that the measured earth pressure accordant with the theoretical analysis. Therefore, the method in this paper provides a basis for the calculation of active earth pressure on supporting piles under vehicle load.
Keyword土压力 车辆荷载 试验研究 支护桩 基坑
URL查看原文
Language中文
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/13947
Collection山地灾害与地表过程重点实验室
Affiliation1..中科院成都山地灾害与环境研究所/山地灾害与地表过程重点实验室,四川,成都,610000
2.中国科学院大学,北京,100049
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
邱洪志,孔纪名,王仁超,等. 车辆荷载对支护桩主动土压力的影响分析[J]. 岩土工程学报,2016:101-108.
APA 邱洪志,孔纪名,王仁超,黄森旺,&崔云.(2016).车辆荷载对支护桩主动土压力的影响分析.岩土工程学报,101-108.
MLA 邱洪志,et al."车辆荷载对支护桩主动土压力的影响分析".岩土工程学报 (2016):101-108.
Files in This Item:
File Name/Size DocType Version Access License
车辆荷载对支护桩主动土压力的影响分析_邱(1066KB)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
[邱洪志]'s Articles
[孔纪名]'s Articles
[王仁超]'s Articles
Baidu academic
Similar articles in Baidu academic
[邱洪志]'s Articles
[孔纪名]'s Articles
[王仁超]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[邱洪志]'s Articles
[孔纪名]'s Articles
[王仁超]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 车辆荷载对支护桩主动土压力的影响分析_邱洪志.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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