输电线路掏挖式基础在倾斜荷载作用下的特性

杨剑; 高玉峰; 程永锋; 鲁先龙

doi:10.13204/j.gyjz200806017

输电线路掏挖式基础在倾斜荷载作用下的特性

doi: 10.13204/j.gyjz200806017

1.
1. 河海大学岩土力学与堤坝工程教育部重点实验室岩土工程科学研究所,南京 210098;
2.
2. 国网北京电力建设研究院,北京100055

基金项目:

江苏省青蓝工程项目(2006)

计量
- 文章访问数: 79
- HTML全文浏览量: 8
- PDF下载量: 49
- 被引次数: 0
出版历程
- 收稿日期: 2007-08-17
- 刊出日期: 2008-06-20

CHARACTERISTIC OF DIGGING FOUNDATIONS OF TRANSMISSION LINES UNDER INCLINED LOADING

1.
1. Key Laboratory of Ministry of Education for Geomechanics and Embankment,Geotechnical Research Institute,Hohai University Nanjing 210098;
2.
2. Beijing Electric Power Construction Research Institute of SGCC Beijing 100055

摘要

摘要: 通过数值模拟对输电线路竖向和倾斜掏挖式基础在不同倾角荷载作用下的承载特性和内力分布进行分析。结果表明,直掏挖基础在小于10的倾斜荷载作用下竖向承载力变化不大,随着荷载倾角的增加,竖向承载力明显减小。在相同倾角的荷载作用下,正斜掏挖式基础的竖向承载力要大于负斜掏挖式基础,直掏挖基础居中。同时,正斜掏挖式基础的弯矩和剪力均要小于负斜掏挖基础。掏挖式基础的倾角与荷载倾角相同情况下的基础受力最合理,不但可以保证基础承载力,而且基础所受弯矩几乎为零。
- 输电线路 /
- 掏挖基础 /
- 倾斜荷载 /
- 承载力 /
- 内力
Abstract: The bearing capacity characteristics and internal force distribution of transmission digging foundation with plumb and batter angle foundations under inclined loads are studied using extensive numerical modeling.The results reveal that the vertical bearing capacity of plumb foundations are changed less under the load inclination less than 10,while the vertical bearing capacity remarkably decreases when the load inclination is greater than 10.The vertical bearing capacity of foundation with positive batter angles is greater than the vertical and negative batter angles under the same inclined loading,meanwhile,the bending moment and shear force of foundation with positive batter angles are the less than the negative batter angles.In case of foundation batter angles are same with the load inclination proved to be the best configurations,the vertical bearing capacity is not decreased,on the other hand,the bending moment of this configuration is almost zero.
- transmission lines /
- digging foundation /
- inclined loads /
- bearing capacity /
- internal force

HTML全文

参考文献(18)

吕凡任. 倾斜荷载作用下斜桩基础工作性状研究[D].杭州:浙江大学,2004.

[2] 刘静,胡焕校. 旋喷桩在桥梁基础中的新应用[J].中南大学学报,2000,(03):199-201.doi: 10.3969/j.issn.1672-7207.2000.03.003.

[3] 彭文祥,赵明华. 成层地基中倾斜荷载作用下桩的受力研究[J].中南公路工程,1999,(01):27-30.

[4] 赵明华,刘建华,杨明辉. 倾斜荷载下高陡边坡桥梁基桩内力计算[J].岩石力学与工程学报,2006,(11):2352-2357.doi: 10.3321/j.issn:1000-6915.2006.11.028.

[5] 侯运秋,赵明华,曹喜仁. 倾斜荷载下基础的承载力研究[J].中南公路工程,1998,(01):39-42.

[6] 赵明华. 倾斜荷载下基桩的受力研究[D].长沙:湖南大学,2001.

[7] 赵明华,邹新军,邹银生. 倾斜荷载下基桩的改进有限元--有限层分析方法[J].工程力学,2004,(03):129-133.doi: 10.3969/j.issn.1000-4750.2004.03.024.

[8] 赵明华,侯运秋,曹喜仁. 倾斜荷载下基桩的受力研究[J].湖南大学学报(自然科学版),1997,(02):98-102.

[9] 赵明华,侯运秋,单远铭. 倾斜荷载下桥梁桩基的计算与试验研究[J].湖南大学学报(自然科学版),1999,(02):86-91.doi: 10.3321/j.issn:1000-2472.1999.02.021.

[10] Meyerhof G G. Behaviour of Pile Foundations Under Special Loading Conditions[J].Canadian Geotechnical Journal,1995.204-222.doi: 10.1139/t95-024.

[11] Meyerhof G G,Yalcin A S. Behaviour of Flexible Batter Piles Under Inclined Loads in Layered Soil[J].Canadian Geotechnical Journal,1993.247-256.

[12] Zhang L M,McVay M C,Lai P W. Centrifuge Modelling of Laterally Loaded Single Battered Piles in Sands[J].Canadian Geotechnical Journal,1999.1074-1084.

[13] Zhang L M,McVay M C,Han S J. Effects of Dead Loads on the Lateral Response of Battered Pile Groups[J].Canadian Geotechnical Journal,2002.561-575.

[14] Rajashree S S,Sitharam T G. Nonlinear Finite-Element Modeling of Batter Piles Under Lateral Load[J].Journal of Geotechnical and Geoenvironmental Engineering,2001,(07):604-612.doi: 10.1061/(ASCE)1090-0241(2001)127:7(604).

[15] Ramakrishna V G S T,Ran S N. Laterally Loaded Pile Bents in Marine Clay[J].Southeast Asian Geotechnical Society,2003,(03):1-11.

[16] Karthigeyan S,Ramakrishna V G S T,Rajagopal K. Influence of Vertical Load on the Lateral Response of Piles in Sand[J].Computers and Geotechnics,2006.121-131.

[17] Yang Zhaohui,Boric Jeremic. Numerical Analysis of Pile Behavior Under Lateral Loads in Layered Elastic-Plastic Soils[J].International Journal for Numerical and Analytical Methods in Geomechanics,2002,(26):1385-1406.doi: 10.1002/nag.250.

[18] 吴大为. 计算机数值方法实验[M].北京:化学工业出版社,2000.

施引文献

资源附件(0)

访问统计