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| 垫层厚度对长短桩复合地基性状影响的试验研究 | |
| 引用本文： | 葛忻声,饶江勇,黄新恩,李斌,陈东佐. 垫层厚度对长短桩复合地基性状影响的试验研究[J]. 太原理工大学学报, 2010, 41(3) |
| 作者姓名： | 葛忻声 饶江勇 黄新恩 李斌 陈东佐 |
| 作者单位： | 1. 太原理工大学,建筑与土木工程学院,太原,030024 2. 中北大学,后勤处,太原,030051 3. 太原大学,建筑工程系,太原,030009 |
| 基金项目： | 国家自然科学基金资助项目，山西省自然科学基金资助项目，太原市大学生创新创业资助项目 |
| 摘 要： | 为了研究垫层厚度对长短桩复合地基工作性状的影响,在室内模型试验的基础上,对无垫层2、cm垫层和5 cm垫层三种情况下长短桩复合地基的荷载与沉降的关系、桩土应力比、荷载分担比等问题进行了分析,结果表明,长短桩复合地基的沉降量随着垫层厚度的增加而增加;长桩桩土应力比随垫层厚度的增加而减小,短桩桩土应力比的变化不如长桩明显;无垫层时,长桩荷载分担比较大,桩间土和短桩荷载分担比很小,铺设垫层后,随垫层厚度的增加,长、短桩荷载分担比都逐渐减小,桩间土荷载分担比逐渐增大。 |
| 关 键 词： | 垫层 长短桩复合地基 模型试验 |
Model Test Study on the Impact of Cushion Thickness on the Long-short Piles Composite Foundation |
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| GE Xin-sheng,RAO Jiang-yong,HUANG Xin-en,LI Bin,CHEN Dong-zuo. Model Test Study on the Impact of Cushion Thickness on the Long-short Piles Composite Foundation[J]. Journal of Taiyuan University of Technology, 2010, 41(3) | |
| Authors: | GE Xin-sheng RAO Jiang-yong HUANG Xin-en LI Bin CHEN Dong-zuo |
| Affiliation: | GE Xin-sheng1,RAO Jiang-yong1,HUANG Xin-en2,LI Bin1,CHEN Dong-zuo3(1.College of Architecture , Civil Engineering,Taiyuan University of Technology,Taiyuan 030024,China,2.Rear Service,North University of China,Taiyuan 030051,3.Dept.of Civil Engineering,Taiyuan University,Taiyuan 030009,China) |
| Abstract: | In order to study the impact of cushion thickness on the long-short piles composite foundation,the relation between bearing capacity and settlement,pile-soil stress ratio,and load sharing ratio were studied on the basis of laboratory tests in three different conditions:no cushion,2 cm-thick cushion and 5 cm-thick cushion.Conclusions are as follows:the settlement of long-short piles composite foundation increased with increasing cushion thickness;the pile-soil stress ratio of long pile decreased with increas... |
| Keywords: | cushion long-short-pile composite foundation model test |
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