| 旋挖灌注桩清孔技术现状及在重庆地区适用性探讨 |
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| 引用本文： | 赖晶星,孔凡林,刘海源. 旋挖灌注桩清孔技术现状及在重庆地区适用性探讨[J]. 重庆建筑, 2013, 0(6): 33-36 |
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| 作者姓名： | 赖晶星 孔凡林 刘海源 |
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| 作者单位： | 重庆市建筑科学研究院;重庆市建设工程质量检验测试中心 |
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| 摘 要： | 该文列举了国内旋挖成孔后常用的几种清孔方式,并对其施工原理、适用条件和优缺点进行了分析,结合重庆地区高填方抛填块石土场地的特点,对各类清孔技术在重庆地区的适应性进行探讨分析,并提出一种适用于抛填块石场地的高压风-破碎清孔法的新思路,供业界同行参考。
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| 关 键 词： | 旋挖灌注桩 清孔 沉渣 高压风-破碎清孔法 抽浆法 正循环换浆法 气举反循环法 高压风清孔 |
On Status Quo of Residue Clearance Technology for Rotary Drilling Pile and Its Application in Chongqing |
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| Abstract: | Several residue clearance methods for rotary drilling pile are introduced with their construction principle,application condition,advantages and disadvantages demonstrated.Combined with the features of high fill in Chongqing,adaptability of residue clearance methods is discussed and the new idea of high-pressure blast-crush clearance for high fill is presented for references. |
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| Keywords: | rotary drilling pile clearance dregs high-pressure blast-crush clearance grout pumping grout change in direct cycle high-pressure blast clearance |
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