| 煤系地层中锚索预应力监测分析 |
| |
| 引用本文： | 阮波,方理刚.煤系地层中锚索预应力监测分析[J].岩土力学,2005,26(2):315-318. |
| |
| 作者姓名： | 阮波 方理刚 |
| |
| 作者单位： | 中南大学 土木建筑学院，湖南 长沙 410075 |
| |
| 摘 要： | 通过对某滑坡抗滑桩加锚索处理工程中预应力锚索应力状态2年多的现场监测，讨论了锚索张拉过程中的荷载-位移关系，分析了煤系地层中预应力锚索的锁定损失及锁定后的应力损失过程。采用GM(1,1)模型，对预应力损失过程进行了趋势性分析。结果表明，模型拟合精度高，得到的研究结果可为今后类似工程提供借鉴。
|
| 关 键 词： | 预应力监测 预应力锚索 煤系地层 灰色模型 |
| 文章编号： | 1000-7598-(2005)02-0315-04 |
| 收稿时间： | 2003-10-17 |
| 修稿时间： | 2003年10月17 |
Analysis of monitoring prestressed anchors in coal stratum |
| |
| RUAN Bo,FANG Li-gang.Analysis of monitoring prestressed anchors in coal stratum[J].Rock and Soil Mechanics,2005,26(2):315-318. |
| |
| Authors: | RUAN Bo FANG Li-gang |
| |
| Institution: | College of Civil and Architectural Engineering, Central South University, Changsha 410075, China |
| |
| Abstract: | The load variations of each anchor in coal stratum are recorded with load cells for more than two years. The instantaneous losses of load that occurred during the lock-out operation have been measured. The load changes versus time after lock-out are analyzed. The comparison between measured deformations and calculated displacements at the heads of the anchors is discussed. The gray model, GM (1,1), of load loss is established. The trend of variation is researched. Results show that the gray model has a higher precision. This study is of referential value to construction and design for other similar projects. |
| |
| Keywords: | prestress monitoring prestressed anchor coal stratum gray model |
| 本文献已被 CNKI 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 |
