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[1]张望喜,易伟建,陈友坤,等.双参数地基推力长桩的水平位移解析解[J].建筑科学与工程学报,2007,24(04):34-38.
　ZHANG Wang-xi,YI Wei-jian,CHEN You-kun,et al.Analytical Solutions About Horizontal Displacement of Laterally LoadedLong-piles Under Double-parameter Foundation[J].Journal of Architecture and Civil Engineering,2007,24(04):34-38.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
24卷
期数:
2007年04期
页码:
34-38
栏目:
出版日期:
2007-12-20

文章信息/Info

Title:
Analytical Solutions About Horizontal Displacement of Laterally Loaded Long-piles Under Double-parameter Foundation
作者:
张望喜，易伟建，陈友坤，谢小安
湖南大学 土木工程学院,湖南 长沙 410082
Author(s):
ZHANG Wang-xi, YI Wei-jian, CHEN You-kun, XIE Xiao-an
School of Civil Engineering, Hunan University, Changsha 410082, Hunan, China
关键词:
双参数地基;  推力长桩;  变分原理;  水平位移;  解析解
Keywords:
double-parameter foundation;  laterally loaded long-pile;  variation principle;  horizontal displacement;  analytical solution
分类号:
TU473.1
DOI:
-
文献标志码:
A
摘要:
基于双参数地基理论,获得了双参数地基-桩系统的总势能泛函; 采用能量变分原理推导了双参数地基推力长桩平衡微分方程及相应的边界条件; 根据桩的抗弯刚度与地基参数相对大小的不同情况,求得了双参数地基推力长桩的水平位移解析解。结果表明:双参数地基模型可以模拟从离散介质到连续介质的各种地基土,性能优于传统单参数地基,考虑侧向连续性的双参数地基模型较好地模拟了桩周土体对推力长桩支承、约束及水平位移的影响; 推力和弯矩对推力长桩水平位移的影响同等重要,在推力长桩受力分析中,桩端推力和弯矩应同时考虑。
Abstract:
Based on the theory of double-parameter foundation, total potential energy fonctionelle of double-parameter foundation and pile system was obtained. The equilibrium differential equation and corresponding boundary condition of laterally loaded long-piles under double-parameter foundation were deduced by means of energy variation principle. The analytical solutions about deflection of laterally loaded long-piles were obtained according to different relative values of pile flexural rigidity and foundation parameters.The results show that the double-parameter foundation model can simulate the different soils from discrete medium to continuous medium, whose performance excels the traditional single-parameter foundation model, which preferably simulate the influence of supporting, restraint and horizontal displacement of laterally loaded long-piles from surround soil. Moreover, the lateral force influencing to pile displacement was the same important as moment, and the lateral force and moment at the top end of piles should be considered simultaneously in the analysis of long-piles.

参考文献/References:

[1] 戴自航,沈蒲生.推力长桩计算的综合刚度双参数法半数值解[J].福州大学学报:自然科学版,2004,32(6):742-745. DAI Zi-hang,SHEN Pu-sheng.Semi-numerical Solution of Laterally Loaded Piles by the Bi-parameters Method with Composite Stiffness[J].Journal of Fuzhou University:Natural Science,2004,32(6):742-745.
[2]宋东辉,徐 晶.半无限弹性体地基上水平荷载桩的静力分析[J].土木工程学报,2004,37(11):89-96. SONG Dong-hui,XU Jing.Static Analysis of Horizontal-load-bearing Piles in a Semi-infinite Elastic Foundation[J].China Civil Engineering Journal,2004,37(11):89-96.
[3]王 成,邓安福.水平荷载桩桩土共同作用全过程分析[J].岩土工程学报,2001,23(4):476-480. WANG Cheng,DENG An-fu.Complete Analysis of Pile-soil Interaction for Laterally Loaded Pile[J].Chinese Journal of Geotechnical Engineering,2001,23(4):476-480.
[4]SELCADURAI A P S.Elastic Analysis of Soil-foundation Interaction[M].Toronto:Elasevier Scientific Publishing Co,1979.
[5]胡海昌.弹性力学的变分原理及其应用[M].北京:科学出版社,1981. HU Hai-chang.Variation Principle and Its Application in Elastic Mechanics[M].Beijing:Science Press,1981.
[6]张望喜,易伟建.双参数地基上厚薄板通用元与地基参数识别的挠度反分析[J].工程力学,2003,20(6):46-51. ZHANG Wang-xi,YI Wei-jian.Generalized Conforming Element of Thick-thin Slab on Double-parameter Foundation and Deflection Reverse Analysis for Foundation Parameter Identification[J].Engineering Mechanics,2003,20(6):46-51.

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备注/Memo

备注/Memo:
收稿日期:2007-11-13
基金项目:国家自然科学基金项目(50378034/E0807)
作者简介:张望喜(1971-),男,湖北浠水人,副教授,工学博士,E-mail:wxizhang2000@163.com。
更新日期/Last Update: 2007-12-20