【摘要】 支护桩是边坡及基坑的重要支护形式，随着工程建设大规模开展，支护桩的使用越来越多，但边坡工程事故也随之增多，其中不乏有支护桩产生破坏。然而，目前国内外对支护桩破坏方面的研究还较为匮乏。因此，本文基于对实际工程中支护桩破坏现象的分析，结合支护桩破坏受力概化模型和数值模拟，对支护桩破坏类型及机理进行研究。研究结果表明：按支护桩的破坏特征可将支护桩破坏类型分为受推倾斜、受剪剪断和受弯折断三类，分别由其特定的地质环境和支护结构形式孕育，最后基于破坏机理分析提出应对措施建议。论文的结论及建议对指导边坡事故原因判断、边坡应急抢险、边坡工程安全评价及边坡加固工程的勘察、设计、施工具有重要的价值。更多还原

【Abstract】 Soldier pile is an important supporting form of slope and deep excavations, with the large-scale development of construction, the use of soldier pile is becoming more and more. The slope failure accidents followed happen and the damage of soldier piles are part of them. However at present, the research on the failure of soldier pile is scarce at home and abroad. Based on the analysis of the failure phenomena of the soldier pile in the projects, combined with the generalized model of the failure force of the pile and numerical simulation, the failure type and mechanism of the soldier pile are studied. The study results show that according to the failure characteristics of the supporting pile, the failure of the soldier pile can be divided into three types, i.e. pushing inclined, shearing damage and bending failure. The types are governed by their geological conditions and the supporting system. Finally, based on the mechanism analysis, the countermeasures are put forward. The conclusions and suggestions of the paper can be referred by the slope engineering in the failure cause investigation, emergency rescue, stability assessment etc. it also could be referred in the slope investigation, design and construction works.更多还原