Taking the soft highway foundation treatment in Anhui province as an example,the paper introduces the practical application of nail-style double-direction mixing pile processing technology in the engineering,and summarizes its construction technology procedures. Through ana-lyzing pile-formed detection results,it proves the processing effect of double-direction mixing piles,which has provided some guidance for similar engineering.%以安徽省某高速公路软基处理为例，介绍了钉形双向搅拌桩处理工艺在该工程中的实践应用，归纳总结了钉形双向搅拌桩的施工工艺流程，并通过对成桩检测结果的分析，验证了双向搅拌桩的处理效果，可为类似工程提供参考借鉴。
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