| 浆固碎石桩单桩荷载传递特性研究 |
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| 引用本文： | 温世清,刘汉龙,陈育民.浆固碎石桩单桩荷载传递特性研究[J].岩土力学,2011,32(12):3637-3641. |
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| 作者姓名： | 温世清 刘汉龙 陈育民 |
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| 作者单位： | 1.河海大学 岩土力学与堤坝工程教育部重点实验室，南京 210098；2.河海大学 岩土工程科学研究所，南京 210098 |
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| 基金项目： | 江苏省自然科学基金创新学者攀登项目，江苏省青蓝工程创新团队资助项目 |
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| 摘 要： | 浆固碎石桩是加固软土地基的一种新型桩基技术，已成功应用于高速公路和高速铁路等工程软土地基处理。为了研究浆固碎石桩单桩荷载传递机制，假定浆固区压缩模量呈指数分布，应用圆形承载板作用下的半空间体位移的解，对竖向荷载作用下单桩复合地基各部分沉降进行分析，推导出桩轴向压应力、桩侧摩阻力和桩顶沉降计算公式。现场试验实测结果与理论计算结果对比表明，理论计算值与实测值相吻合，验证了理论计算公式的合理性
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| 关 键 词： | 浆固碎石桩 荷载传递 桩侧摩阻力 沉降 地基处理 |
| 收稿时间： | 2011-07-11 |
Analysis of load transfer characteristics of single grouted gravel pile |
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| WEN Shi-qing,LIU Han-long,CHEN Yu-min.Analysis of load transfer characteristics of single grouted gravel pile[J].Rock and Soil Mechanics,2011,32(12):3637-3641. |
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| Authors: | WEN Shi-qing LIU Han-long CHEN Yu-min |
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| Institution: | 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China |
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| Abstract: | Grouted gravel pile is a new technique of piles for reinforcing soft soils.It has been successfully used in construction of projects of expressway and high-speed railway.In order to study the load transfer mechanism of the pile,under the assumption that the compression modulus is obeyed the exponential distribution in reinforced zone,and based on the solution of settlement in half-space under circular bearing plate,the settlements of different parts of grouted gravel pile composite foundation under loads ar... |
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| Keywords: | grouted gravel pile load transfer lateral friction resistance settlement soil improvement |
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