| 应用后压浆技术的钻孔灌注桩承载力计算方法 |
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| 引用本文： | 郭琦,李春轩,刘慧林. 应用后压浆技术的钻孔灌注桩承载力计算方法[J]. 水运工程, 2010, 0(3) |
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| 作者姓名： | 郭琦 李春轩 刘慧林 |
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| 作者单位： | 1. 西安建筑科技大学,教育部结构工程与抗震重点实验室,陕西,西安,710055
2. 陕西通宇公路研究所有限公司,陕西,西安,710043 |
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| 基金项目： | 陕西省重点学科建设专项资金项目，西安建筑科技大学青年科技基金项目 |
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| 摘 要： | 对于日益增多的采用后压浆钻孔灌注桩的桥梁,为进一步剖析后压浆工艺对桩基侧阻力、端阻力的作用机理并确定合理的承载力计算方法,以陕西渭河特大桥桥址作为试验比选区,制作了2组试桩及一组工艺桩进行了静栽试验及注浆性状直观剖示试验研究.结果表明:由于沉渣固结及泥皮置换作用使得后压浆桩基承载性状得到了充分发挥,应用建科院公式更能够反映后压浆桩的承栽力状况.研究成果对于同类型工程桩基的设计与加固补强具有一定的借鉴意义.
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| 关 键 词： | 钻孔灌注桩 后压浆 桩基承载力 工艺桩 |
Calculation method of bearing capacity for cast-in-situ pile with post-grouting technique |
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| GUO Qi,LI Chun-xuau,LIU Hui-lin. Calculation method of bearing capacity for cast-in-situ pile with post-grouting technique[J]. Port & Waterway Engineering, 2010, 0(3) |
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| Authors: | GUO Qi LI Chun-xuau LIU Hui-lin |
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| Affiliation: | GUO Qi1,LI Chun-xuan2,LIU Hui-lin2(1.Key Laboratory of Structure , Earthquake-resistance of Ministry of Education,Xi'an University of Architecture , Technology,Xian 710055,China,2 Shaanxi Tong Yu Research Institute of Highway Co.,Ltd.,Xi'an 710075,China) |
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| Abstract: | In order to make a detailed analysis on the mechanical performance of side and end resistance of cast-in-place bored pile with post grouting technique in more and more bridges,the reliable calculation method of bearing capacity is studied.Based on the experimental research on two groups of trial piles and one group of craft piles in the same geologic region of Weihe bridge in Shaanxi province,we know that the pile-soil interaction are fully realized because of the sediment consolidation and mud skin replace... |
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| Keywords: | grouting pile post grouting bearing capacity craft pile |
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