To study the mechanical performances of a new kind of overlapping connection with grouted anchor reinforcements in embedded metal corrugated pipes, a total of 24 groups of 72 specimens were prepared and tested. The overlap connection performance of grouting anchor reinforcements in embedded metal corrugated pipes was studied by bi-directional tension test. The factors such as the diameter of anchor reinforcements, anchor length and location of reinforcements were taken into account. The results show that the bi-directional tension test method can effectively reflect the actual stress state of the overlap connection. When the connection satisfies the structural requirements, the location of the reinforcement has little influence on the anchorage performance of the connection. Under the same conditions, the failure load of the specimens will increase with the increase of the diameter of reinforcements and the anchorage length. Meanwhile, under the same conditions, the average bond stress decreases with the increase of the reinforcement diameter and the anchorage length. Experimental results and analysis show that overlap connection with grout-filled anchor reinforcements in embedded metal corrugated pipe has good anchoring performances, and also has the advantages of simple structure and convenient construction.

为了研究埋入式金属波纹管中新型注浆锚固搭接的力学性能，共准备并测试了24组72个试样。通过双向拉伸试验研究了埋入式金属波纹管中注浆锚固钢筋的搭接性能。考虑了诸如锚固钢筋的直径，锚固长度和钢筋位置的因素。结果表明，双向拉伸试验方法可以有效地反映搭接连接的实际应力状态。当连接满足结构要求时，加强件的位置对连接的锚固性能影响很小。在相同条件下 试件的破坏荷载将随着钢筋直径和锚固长度的增加而增加。同时，在相同条件下，平均粘结应力随着钢筋直径和锚固长度的增加而减小。实验结果与分析表明，埋入式金属波纹管中灌浆锚固钢筋的搭接连接具有良好的锚固性能，并且结构简单，施工方便。