分段反弯抗浮锚杆设计与试验研究

Research on the design and in-situ test of segmental bended hook anti-floating anchor rods

抗浮锚杆在建设中被广泛应用,从锚杆力学原理出发,分析了传统锚杆在富水地层应用中的不足,并提出分段反弯抗浮锚杆。通过理论分析可知,新型抗浮锚杆在承载力上具有一定的优势,并对新型抗浮锚杆和常规抗浮锚杆进行了现场试验对比,新型反弯抗浮锚杆具有更大的极限承载力,且破坏前变形更小,因此所提出的锚杆改进可以更好的适应类似项目施工。

Anti-float anchor rods are widely used in construction. Starting from the mechanics principle of anchor rods,an anti-floating anchor bolt with segmental bended hook is proposed. The corresponding anti-buoyancy expression formula is put forward and the mechanical test of the anchor rod is carried out. Compared with conventional bolts,the new type has a larger critical load capacity and smaller deformation before failure. So,the new type of anchor rock could be more suitable for similar projects.