基于 AHP 法的钉型搅拌桩处理软基应用

摘要

为解决我国道路软基工后沉降过大的状况，同时避免主观因素造成软基处理方法不当，进而处理效果不佳的问题，结合工程实例，利用层次分析法模型确定采用钉型搅拌桩法进行软基处理，并从方案设计和效果分析等方面进行研究。结果表明，钉型搅拌桩处理后的代表桩 A、B 成桩质量较好，且累计沉降量分别为3．57 mm 和3．98 mm，沉降量显著降低，符合规范设计要求。%To solve the problem of the too large post-construction sedimentation in soft soil roadbed and to avoid the bad strengthening effect caused by the inappropriate soft foundation treatment method for subjective factors,combined with practical engineering,the screw type mixing pile is adopted based on the analytic hierarchy process (AHP)model,and the scheme design and effect analysis are studied.The results show that the quality of representative piles (A and B)is better after the screw type mixing pile processing,and the cumulative settlement are respectively 3.57mm and 3.98mm, which have been significantly reduced and can comply with the design requirements of specification.