| 高压旋喷注浆法在钻孔灌注嵌岩桩底持力层补强加固中的应用 |
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| 引用本文： | 龙艺芳,叶建伍.高压旋喷注浆法在钻孔灌注嵌岩桩底持力层补强加固中的应用[J].广东交通职业技术学院学报,2009,8(2):23-25. |
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| 作者姓名： | 龙艺芳 叶建伍 |
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| 作者单位： | 1. 清远市交通局,广东清远,511515
2. 清远市公路局,广东清远,511515 |
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| 摘 要： | 文中以清远北江大桥扩建工程1#墩1#桩桩底持力层强度不足为案例，从高压旋喷注浆的原理、实施步骤等方面阐述解决钻孔灌注嵌岩桩底持力层承载力不足的补强加固方法。实践证明：高压旋喷注浆补强加固方法简单可行，安全可靠。
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| 关 键 词： | 桥梁 桩底持力层 高压旋喷注浆 补强加固 |
Application of High-pressure Rotary Concrete-jetting Technology in the Reinforcement of the Bearing Layer of Rock-socketed Cast-in-place Pile Bottom |
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| LONG Yi-fang,YE Jian-wu.Application of High-pressure Rotary Concrete-jetting Technology in the Reinforcement of the Bearing Layer of Rock-socketed Cast-in-place Pile Bottom[J].Journal of Guangdong Communication Polytechnic,2009,8(2):23-25. |
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| Authors: | LONG Yi-fang YE Jian-wu |
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| Institution: | 1. Qingyuan Transportation Bureau,Qingyuan 511515,China; 2. Qingyuan Highway Bureau, Qingyuan 511515,China) |
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| Abstract: | From the theory and the implementation procedure of high- pressure rotary concrete-jetting technology, the authors, who take the extension project of Qingyuan Beijiang River Bridge which is strength inadequacy in the bearing layer of pile bottom of the first pier and the first pile as an example, show the way how to solve the problem of carrying capacity inadequacy in the bearing layer of rock-socketed cast-in-place pile bottom. The practice proves that the high-pressure rotary concrete-jetting technology is simple, feasible and safe. |
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| Keywords: | bridge the beating layer of pile bottom high- pressure rotary concrete- jetting reinforcement |
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