长江科学院院报2017，Vol.34Issue(7)：70-76,7.DOI:10.11988/ckyyb.20160364
锚杆抗滑桩与普通抗滑桩加固黄土滑坡的对比试验研究
Comparative Model Test of Anti-slide Anchor Pile and CommonAnti-slide Pile to Reinforce Loess Landslide
摘要
Abstract
The stress form, internal force distribution and failure mode of anti-slide anchor piles of different structures are compared and analyzed by measuring the soil resistance, bending moment of piles body and the strain of anchor in three model tests of reinforcing loess landslide by different pile-anchor structures (common anti-slide pile and anti-slide anchor pile).Results show that 1) in the prevention and control of loess landslide, the stress of anti-slide anchor pile displays an "S" shape, and the displacement of pile top is smooth and continuous, and the distributions of soil resistance and bending moment of pile body are more uniform;2) increasing the number of anchors at the top of pile could increase the anti-slide force;3) the failure mode of common anti-slide pile is mainly plastic single hinge damage, while that of anti-slide anchor pile is mainly single hinge (or double hinges) damage;the main failure of anchor is bending-shear slip damage, and that of the soil around pile is mainly plastic failure of soil arch.The research results provide technical support for the design theory of anti-slide anchor pile in loess landslide prevention and control.关键词
锚杆抗滑桩/普通抗滑桩/模型对比试验/黄土滑坡/破坏模式Key words
anti-slide anchor pile/common anti-slide pile/comparative model test/loess landslide/failure mode分类
建筑与水利引用本文复制引用
张涛,门玉明,石胜伟,李寻昌..锚杆抗滑桩与普通抗滑桩加固黄土滑坡的对比试验研究[J].长江科学院院报,2017,34(7):70-76,7.基金项目
中国地质调查局二级项目(DD20160278) （DD20160278）
中国地质调查局工作项目(1212011220171,1212010914021) （1212011220171,1212010914021）
