土挤密桩法在湿陷性黄土地基处理中的应用

Application of Earth Pile in Collapsible Loess Ground Treatment

土桩和灰土桩挤密法处理地基是用桩间挤密土和回填夯实的桩体组成"复合地基",共同承受荷载。介绍了土挤密桩的工作原理、方案设计、施工工艺流程、施工注意事项和质量控制措施等。南水北调中线一期禹州长葛段工程实践表明:土挤密桩在湿陷性黄土地基处理中,既能保证工程质量,又能提高施工效率,是一种处理深层湿陷性黄土地基的有效工程措施。

The soil pile and lime-soil pile treating ground is using the composite foundation to bear the load,which is composed of backfill compacted pile and compacted soil around the pile.The working principle,project design and construction process are introduced emphatically as well as the construction precaution and quality control measures.The south-to-north water diversion middle route first stage Yuzhou to Changge project practice shows that： in dealing with the collapsible loess,the earth pile can assure the engineering quality and improve the construction efficiency,which is an effective engineering measure in dealing with the deep collapsible loess ground.