|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2009年07 期
| 标题 |
| CFG桩桩头预留高度的确定及截桩设备效果分析(49 卷) |
| 英文标题 |
| Determination of preserved heigh of CFG piles top and analysis on effect of using pile-cutting equipment |
| 摘要 |
| 对李窑路基试验段长螺旋钻孔管内泵压法施工的CFG桩预留50 cm桩头，进行了不同段落的质量调查并抽芯取样进行了强度试验。结果表明，仅需去除20～30 cm桩头即可保证桩顶混合料强度。同时，为减少凿桩头施工对CFG桩成品质量的影响，分析了几种截桩设备的施工效果，研制出专用截 |
| 作者 |
| 新闻作者:刘红峰，雷勇锋 |
| 关键字 |
