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高土质边坡锚索桩变形加固设计方法研究 被引量:1

Study on Deformation Reinforcement Design Method of Anchor Pile for High Soil Slope
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摘要 由于不合理的施工、设计,如未按逆法施工、半坡桩桩前嵌固段襟边宽度不够,造成高土质边坡支挡结构变形。在已变形的锚索桩的外侧设置多道类似F型的加固桩及联系梁进行加固的方法效果明显;设计时应充分考虑已有桩的损伤及加固桩的发挥作用的有效性;分析表明加固结构布置对边坡支护效果影响大,加固结构受力主要在边坡的中下部即应强腰固脚;同时原有结构受力状态发生变化,应予以重视,必要时加强构件强度;此外,应充分考虑原有桩已有的变形,严格控制后期加固结构的变形。 Due to the unreasonable construction design, if the half-slope pile is not constructed according to the inverse method, the width of the front edge of the fixed section is not enough, which causes the deformation of the retaining structure of the high soil slope. The method of setting multiple reinforcement piles and beams similar to F-type on the outside of the deformed anchor pile for reinforcement is obvious. The damage of the existing pile and the effectiveness of the reinforced pile should be fully considered in the design. The analysis shows that the reinforcement structure layout has a great influence on the slope support effect, and the reinforcement structure stress is mainly in the middle and lower part of the slope, that is, the waist and feet should be strengthened. At the same time, attention should be paid to the change of the stress state of the original structure, and the strength of the component should be strengthened if necessary. Besides, the existing deformation of the original pile should be taken into full consideration and the deformation of the later reinforcement structure should be strictly controlled.
作者 唐祯 唐秋元
出处 《土木工程》 2021年第9期811-819,共9页 Hans Journal of Civil Engineering
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