| 粉喷桩复合地基桩土应力比的试验研究 |
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| 引用本文： | 王晖,赵常洲,李占强,杨为民. 粉喷桩复合地基桩土应力比的试验研究[J]. 安徽理工大学学报(自然科学版), 2002, 22(2): 17-20 |
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| 作者姓名： | 王晖 赵常洲 李占强 杨为民 |
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| 作者单位： | 1. 河北省建筑设计研究院岩土所,河北,石家庄,050011
2. 安徽理工大学资源与环境工程系,安徽,淮南,232001 |
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| 摘 要： | 粉喷桩群桩复合地基静载荷试验及桩土应力比的试验结果表明 ,粉喷桩复合地基的变形 ,可分为弹性、弹塑性、塑性三阶段 ,利用其 logs- logp曲线可确定复合地基的承载力值。在试验荷载条件下 ,随着荷载水平的增加 ,桩间土的应力增长幅度变小 ,而桩体应力增长幅度变大 ,桩体逐渐承担大部分上部荷载 ,桩土应力比与荷载之间基本上呈线性增长趋势
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| 关 键 词： | 粉喷桩 复合地基 桩土应力比 |
| 文章编号： | 1671-0932(2002)02-0017-04 |
| 修稿时间： | 2001-07-20 |
A test research on stress ratio of deep jet mixed pile composite foundation |
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| WANG Hui ,ZHAO Chang zhou ,LI Zhan qiang ,YANG Wei min. A test research on stress ratio of deep jet mixed pile composite foundation[J]. Journal of Anhui University of Science and Technology:Natural Science, 2002, 22(2): 17-20 |
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| Authors: | WANG Hui ZHAO Chang zhou LI Zhan qiang YANG Wei min |
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| Affiliation: | WANG Hui 1,ZHAO Chang zhou 1,LI Zhan qiang 1,YANG Wei min 2 |
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| Abstract: | According to the static loading test of the composite foundation of deep jet mixed group piles, the result reveals that the deformation of the group-piles composite foundation can be classified three stages:elastic, elastic-plastic and plastic ones. The bearing capacity of the composite foundation can be assured by its logs-logp curve. At the test load level,ever-increasing soil stress extent among piles descends; pile stress extent ascends instead with the load level increasing. Piles will bear most upper load gradually. Pile-soil stress ratio is a trend of linear rising. |
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| Keywords: | deep jet mixed piles composite foundation stress ratio between pile and soil |
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