通过对锚杆杆体拉伸试验结果及试验理论分析, 讨论了试验速率对锚杆杆体力学性能的影响。结果表明: 锚杆杆体的上屈服强度与抗拉强度随着试验速率的增加而增加, 其中上屈服强度的增加更为显著; 锚杆杆体屈服阶段的试验速率要低于弹性阶段的试验速率, 在屈服阶段如果采取弹性阶段的试验速率则会提高下屈服强度; 当采取弹性阶段的最低试验速率时, 不会显著提高杆体的下屈服强度。

Through the analysis on the tensile test results of the anchor rod bodies and the test theory, the influence of the test rate on the mechanical properties of anchor rod bodies was discussed. The results show that: the upper yield strength and the tensile strength of the anchor rod bodies would increase with the increase of the test rate, and the increase of the upper yield strength was more obvious; the test rate of the yield stage of the anchor rod bodies should be lower than that of the elastic stage, and the lower yield strength would increase if the test rate of the elastic stage was adopted in the yield stage; when the minimum test rate of the elastic stage was adopted, the lower yield strength of the rod bodies would not increase obviously.