|
位置：首页 >> 期刊文章
|
|
摘要：
|
|
通过对己有各种单桩计算方法的研究总结,建立了单桩计算新理论。该理论与以往基于荷载传递法的单桩计算方法相比,做了如下改进:(1)桩侧与桩端采用广义荷载传递模型;(2)引入混凝土的Rusch模型以考虑高荷载水平作用下桩身混凝土的弹塑性性状;(3)耦合Mindlin解答以考虑桩侧摩阻力在桩端处产生的桩端位移。因此该单桩荷载-沉降关系计算方法在理论上更趋完善,使基于荷载传递法的多层地基中单桩荷载-沉降关系计算方法得到完善和统一。
|
|
Based on the study and analysis for a variety of single pile,a new calculating theory for single pile is put forward.To compare with former calculating methods of load transfer for single pile,some improvements are made as followe:(1)The generalized load transfer model is used for pile-side and pile-tip;(2)The Rusch model of concrete is introduced to consider the elastic-plastic characteristics of pile shaft under the heavy load;(3)The Mindlin's solution is coupled up to calculate the settlement in pile-tip caused by the pile-side's friction resistance.Therefore,the calculating method of load-settlement relation for single pile is being perfected theoretically.On the basis of load transfer method,the calculating method is used to multilayer soil foundations,thus make the method more unified and accurate.
|
|
基金项目：
|
|
|
|
作者简介：
|
|
|
|
参考文献：
|
|
[1]肖宏彬,钟辉虹,张亦静,等.单桩荷载-沉降关系的数值模拟方法[J].岩土力学,2002,23(5):592-596.
[2]赵明华,何俊翘,曹文贵,等.基桩竖向荷载传递模型及承载力研究[J].湖南大学学报(自然科学版),2005,32(1):37-42.
[3]杨桦,杨敏.荷载传递法研究单桩荷载-沉降关系进展研究[J].地下空间与工程学报,2006,2(1):155-165.
[4]蒋益平,杨敏,熊巨华.自平衡试桩荷载-沉降曲线的解析算法[J].岩石力学与工程学报,2006,25(S1):3 258-3 264.
[5]朱百里,沈珠江.计算土力学[M].上海:上海科学技术出版社,1990.
[6]Seed H B,Reese L C.The action of soft clay along frictionpiles[J].Trans.ASCE,1957,122:731-754.
[7]佐腾.悟.基础桩の支持の力学机构[J].土工技术,1965,20(1):1-5.
[8]Kraft L M,Ray R P,Kagawa T.Theoretical t-z curves[J].J.Geotech.Engineering,Vo1.102,No.GJ3.1981.
[9]Vijayvergiya V N.Load-movement characteristics of piles[C].Proc.4th Symposium of Waterway,Port,Coastal andOcean Division,ASCE,Calif:Long Beach,1977,2.
[10]Gardner W S.Consideration in the design of drilled piers[J].Design Construction and Performance of DeepFoundation,1975.
[11]桩基工程手册编写委员会.桩基工程手册[M].北京:中国建筑工业出版社,1995.
[12]潘时声.桩的静力荷载传递计算新方法简介[J].力学与实践,1990,6:34-35.
[13]曹汉志.桩身轴向荷载传递及荷载-沉降曲线的数值计算方法[J],岩土工程学报,1986,8(6):37-49.
[14]何思明.攀枝花地区灌注桩的工作特性[J].四川建筑科学研究,1997(1):16-18.
[15]刘金励.桩基设计与计算[M].北京:中国建筑工业出版社,1990.
|
|
服务与反馈：
|
|
【文章下载】【加入收藏】
|
|
|
|
|