并联千斤顶组锚杆抗拔试验方法研究及其应用

Research and Application of the Bolt Pull-out Test Method for Parallel Jack Groud

分析了几种应用于荷载分散型锚杆抗拔试验方法的优缺点,结合对荷载分散型锚杆受力机理的研究提出了并联千斤顶组锚杆抗拔试验方法,并在实际工程项目中实践应用。此方法解决了现有方法在进行锚杆抗拔试验过程中各单元锚杆不协调不同步受力的问题,既满足了试验可靠性的要求,又提高了便捷性,值得推广应用。

The advantages and disadvantages of several methods applied to load dispersing type bolt pull-out test are analyzed. Combined with the study of the force mechanism of load dispersing type bolt,the bolt pull-out test method for parallel jack groud is put forward,and it is applied in practical project. This method solves the problem of the uncoordinated and unsynchronized force of the bolts in each unit in the process of the bolt pull-out test,which not only meets the requirements of the reliability of the test,but also improves the convenience. It is worth popularizing.