中外公路2025，Vol.45Issue(4)：17-24,8.DOI:10.14048/j.issn.1671-2579.2025.04.003
注浆微型钢管桩组合结构在公路滑坡处治中的应用
Application of Grouted Steel Pipe Micropile Composite Structure in Highway Landslide Treatment
摘要
Abstract
To optimize the calculation methods and application schemes for reinforcing landslides using grouted steel pipe micropile composite structures,the composition of single-pile composite structures and the combination forms of pile group structures were described.By taking the Bishop method as an example,a stability analysis method and the anti-sliding principle of side(sliding)slopes reinforced with grouted steel pipe micropile composite structures were proposed,and a calculation formula for the allowable shear resistance of the composite pile was derived.By taking a landslide case from a section of Lijiang‒Panzhihua Expressway as an example,landslide stability analysis and landslide thrust calculation were carried out.The grouted steel pipe micropile composite structure was used to strengthen and treat the landslide in sections,and corresponding design schemes for landslide emergency rescue and permanent treatment were proposed.The original landslide section has operated safely for over three years after treatment,effectively verifying the good treatment effect of this composite structure.Meanwhile,suggestions were given on the calculation principles,design methods,and application schemes for landslide treatment using grouted steel pipe micropile composite structures.关键词
公路滑坡/应急抢险/注浆微型钢管桩/组合结构/处治方案/边坡加固Key words
highway landslide/emergency rescue/grouted steel pipe micropile/composite structure/treatment plan/slope stabilization分类
交通工程引用本文复制引用
吴兵,梁瑶,李杰,赵洪湖..注浆微型钢管桩组合结构在公路滑坡处治中的应用[J].中外公路,2025,45(4):17-24,8.基金项目
四川省交通运输科技项目(编号:2021-ZL-06) （编号:2021-ZL-06）
四川省交通勘察设计研究院有限公司科技项目(编号:232022005) （编号:232022005）
