土挤密桩技术在南水北调中线工程中的应用

Application of soil compaction piles in Middle Route Project of South to North Water Diversion

南水北调中线总干渠禹长段第一施工标段存在湿陷性黄土地基,综合各方面因素,决定采用土挤密桩地基处理技术进行地基加固。介绍了土挤密桩的技术要求、施工步骤、质量控制要点及质量检验方法。实践证明,该技术具有施工效率高、效果好,不易干扰等特点,较好地解决了南水北调工程湿陷性黄土地基的施工难题。

Collapsible loess foundation is existed in the 1st Bid section of Yuzhou-Changge section of Middle Route Project of South to North Water Diversion.In the consideration of multiple factors,the soil compaction piles technology was adopted.The technical requirements,construction steps,quality control points and quality check methods of this technology are introduced in detail.The practice shows that this technology has the advantages of high construction efficiency,good effect and no interference,which had solved the difficulty of collapsible loess foundation construction.