| 高压脉冲放电技术对桩径影响的研究 |
| 投稿时间：2016-05-24 修订日期：2017-03-06 点此下载全文 |
| 引用本文：王茂森,博坤.高压脉冲放电技术对桩径影响的研究[J].钻探工程,2017,44(5):68-71.WANG Mao-sen,BO Kun. Study on the Effect of High Voltage Pulse Discharge Technology on Pile Diameter[J]. Drilling Engineering, 2017,44(5):68-71. |
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| 中文摘要:高压脉冲放电技术可利用液电效应产生的冲击波，在钻孔局部产生扩孔段，通过灌注水泥而形成异径扩底桩。主要介绍了高压脉冲放电技术的扩底成桩机理、成桩过程以及对桩径的影响情况，并研究了冲击波、蒸汽膨胀压力对桩径的作用。利用新引进的高压脉冲放电装置进行现场试验，试验结果表明，理论公式计算结果基本与试验结果符合。 |
| 中文关键词:钻孔灌注桩 扩底桩 高压脉冲放电 桩径变化 冲击波 |
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| Study on the Effect of High Voltage Pulse Discharge Technology on Pile Diameter |
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| Abstract:Shock wave is generated by the electro-hydraulic effect in high-voltage pulsed discharge technology, and local hole reaming is built in downhole. Finally, pedestal piles with different diameters are formed via cement injection. This paper describes the high-voltage pulse discharge technique about the pile forming mechanism by hole bottom reaming, the pile forming process and the effect on the pile diameter, studies the work of shock wave and vapor expansion pressure on pile diameter. The field experiment is carried out by using a newly introduced high-voltage pulse discharge device, the results show that the theoretical formula results are in good agreement with the experimental results. |
| keywords:bored grouting pile pedestal pile high-voltage pulse discharge pile diameter change shock wave |
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