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| 多桩型复合地基承载特性的试验研究 | |
| 引用本文： | 王士杰,何满潮,李凤琴,奚进泉.多桩型复合地基承载特性的试验研究[J].铁道科学与工程学报,2006,3(5):64-69. |
| 作者姓名： | 王士杰 何满潮 李凤琴 奚进泉 |
| 作者单位： | 1. 中国矿业大学,岩土工程研究所,北京,100083;河北农业大学,河北,保定,071001 2. 中国矿业大学,岩土工程研究所,北京,100083 3. 河北农业大学,河北,保定,071001 4. 中石化集团勘察设计院,河北,保定,071000 |
| 摘 要： | 将碎石桩与CFG桩组成的多桩型复合地基用于沿海软土地基的处理,探讨了其加固机理。通过现场实测,对这种新型复合地基的桩土应力随荷载的变化过程、桩土共同作用机理及桩土荷载分担比的变化过程进行分析。结果表明,处理后的复合地基承载力特征值比原天然地基承载力提高了5.7倍。 |
| 关 键 词： | 多桩型复合地基 加固机理 桩土应力比 桩土荷载分担比 |
| 文章编号： | 1672-7029(2006)05-0064-06 |
| 修稿时间： | 2006年5月20日 |
Testing study on bearing characteristics of multi-type-pile composite foundation |
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| WANG Shi-jie,HE Man-chao,LI Feng-qin,XI Jin-quan.Testing study on bearing characteristics of multi-type-pile composite foundation[J].Journal of Railway Science and Engineering,2006,3(5):64-69. | |
| Authors: | WANG Shi-jie HE Man-chao LI Feng-qin XI Jin-quan |
| Abstract: | Application of the multi-type-pile composite foundation in coastal soft soil areas was studied and the mechanism of such reinforcement method was also analyzed briefly.Based on in-situ stress measurements,the stress development in the piles and nearby soil was analyzed.Meanwhile,the mechanism of piles-soil interaction and the bearing ratios in piles and soil were researched.The result shows that the treated characterized value of composite foundation is 5.7 times larger than that of untrated composite foundation. |
| Keywords: | multi-type-pile composite foundation strengthening mechanism stress ratio between pile and soil bearing ratio in piles and soil |
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