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| 复合地基沉降计算新方法-桩体沉降法 | |
| 引用本文： | 乔京生,陶龙光,刘波,袁则循.复合地基沉降计算新方法-桩体沉降法[J].辽宁工程技术大学学报(自然科学版),2008,27(1):63-65. |
| 作者姓名： | 乔京生 陶龙光 刘波 袁则循 |
| 作者单位： | 1. 唐山学院,土木工程系,河北,唐山,063000 2. 中国矿业大学(北京),力学与建筑工程学院,北京,100083 3. 北京城市学院,土木工程系,北京,100081 |
| 基金项目： | 国家自然科学基金，河北省科技攻关计划 |
| 摘 要： | 通过模型试验和数值模拟对复合地基进行研究,提出了桩体沉降法计算复合地基沉降的新方法.根据对不同参数(桩长、桩径、桩体模量、褥垫层厚度、褥垫层模量、加固区土体模量、下卧层土体模量)的复合地基的分析,提出了桩体沉降法的两个重要参数:桩顶应力比和桩端应力比,并推导其经验公式.通过与工程实测对比分析表明,采用桩体沉降法计算的沉降量与实测数据相吻合,可以认为是工程设计的一种可靠方法. |
| 关 键 词： | 复合地基 沉降 模型试验 数值模拟 |
| 文章编号： | 1008-0562（2008）01-0063-03 |
| 收稿时间： | 2006-04-12 |
| 修稿时间： | 2006年4月12日 |
New method for settlement calculation of composite foundation-pile settlement method |
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| QIAO Jingsheng,TAO Longguang,LIU Bo,YUAN Zexun.New method for settlement calculation of composite foundation-pile settlement method[J].Journal of Liaoning Technical University (Natural Science Edition),2008,27(1):63-65. | |
| Authors: | QIAO Jingsheng TAO Longguang LIU Bo YUAN Zexun |
| Abstract: | On the basis of scale model experiments and numerical simulations, a new method for estimating pile settlement is presented in this paper. By analyzing different influence factors of composite foundation such as pile length, pile diameter, pile modulus, cushion thickness, cushion modulus, reinforced field soil modulus and underlying stratum soil modulus, the empirical formulas of two important parameters, pile-top stress ratio and pile-end stress ratio, are given. According to the comparison of the in-situ monitoring settlement of an engineering case, the results of pile settlement estimated by the proposed method show good agreement with the measured results. It can be concluded that the method is a potentially reliable method for engineering design. |
| Keywords: | composite foundation settlement model experiment numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |