| 扩体型锚杆的研制及其抗拔试验研究 |
| |
| 引用本文： | 胡建林,张培文.扩体型锚杆的研制及其抗拔试验研究[J].岩土力学,2009,30(6):1615-1619. |
| |
| 作者姓名： | 胡建林 张培文 |
| |
| 作者单位： | 中冶集团建筑研究总院，北京 100088 |
| |
| 摘 要： | 在研制锚杆机械扩孔器的基础上，进行了扩体型锚杆的工艺试验和抗拔试验研究。试验结果表明，所研制的锚杆机械扩孔器对地层具有良好的适应性；扩体型锚杆较普通锚杆的承载力平均提高20 %～30 %，最大为66 %；扩体型锚杆的轴向应变陡降现象明显，具有显著的端承效应。
|
| 关 键 词： | 岩土锚固 锚杆机械扩孔器 扩体型锚杆 抗拔力 锚杆端承效应 |
| 收稿时间： | 2007-03-30 |
Development of underreamed anchor and experimental study of uplift resistance |
| |
| HU Jian-lin,ZHANG Pei-wen.Development of underreamed anchor and experimental study of uplift resistance[J].Rock and Soil Mechanics,2009,30(6):1615-1619. |
| |
| Authors: | HU Jian-lin ZHANG Pei-wen |
| |
| Institution: | Central Research Institute of Building and Construction, MCC Group, Beijing 100088, China |
| |
| Abstract: | The technological and uplift tests of underreamed anchors are carried out based on the development of mechanical underreamed devices of anchorage. The results show that the mechanical underreamed device has good adaptability for geology conditions; the bearing capacity of underreamed anchor increases by 20 %-30 % on an average than that of the normal anchor, and the maximum bearing capacity increases by 66 %; the phenomena of axial strain steep dropping for underreamed anchor show the end-bearing effect of underreamed anchors obviously. |
| |
| Keywords: | geotechnical anchorage mechanical underreamed device underreamed anchor uplift resistance anchor end effect of bearing capacity |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
