拉杆锚固桩墙的试验研究

Test and Research on the Retaining Structure-Anchor Pile with Tie Rod

拉杆锚固桩墙是首次应用于京广铁路的新型支挡结构,具有明显的技术优越性和经济效益。本文就这一新结构的应用进行了现场试验研究,提出了在半岩质地区拉杆拉力、拉力沿拉杆的变化规律、锚块作用力、作用于桩身的压力等现场试验研究成果。论证了整个锚杆的锚固力对增加结构的稳定性具有显著作用。

Results of the test research on anchor pile with tie rod as retaining structure which was built in Beijing-Guangzhou railway is presented. Data of field observations such as the pull of rod anchored in weathered rock mass, distribution of tensile stress along the tie rod, reaction of anchor block and the pressure against pile are provided. Results show that the effect of tie rod is significant.