基于抗滑桩的软土复合地基边坡加固稳定分析及应用

Anti-slide Pile Simulation Method and Its Application in Slope Stability Analysis

含有软弱夹层边坡稳定性具有较大破坏性、连带性等特点,对其进行有效地加固一直是此类边坡安全稳定的分析重点。文章通过总结对比抗滑桩的常用计算方法,结合工程实例特点,分别对岸坡典型断面进行灌注桩或深搅桩加固计算分析,进而提出灌注桩结合深搅桩的组合桩加固型式。同时通过提高深搅桩置换率或增加灌注桩桩长方案进行岸坡稳定敏感性分析,优化加固方案。研究发现,针对含有较厚软土层边坡加固设计中,组合桩在加固效果及施工质量控制等方面具有较大优势,为类似工程提供参考依据。

The stability of the weak interlayer slope is characterized as destruction and collateral,and to reinforce effectively this kind of slope safe stability has been the key point of analysis. Combined with the characteristics of project case,by summarizing and comparing the common calculation methods of anti-slide pile,this paper separately calculated and analyzed reinforcement for filling pile or deep stirring pile on section of the bank slope, meanwhile, putting forward the reinforcement type of composite pile combined filling pile with deep stirring pile. At the same time,the slope stability sensitivity analysis is carried out by increasing the replacement rate of the deep-stirring pile or adding the pile length scheme to optimize the reinforcement scheme. The results show that the composite pile has great advantages in strengthening the reinforcement effect and construction quality control. The above research results provide references basis for similar projects.