施工技术 2010年6月 88 CONSTRUCTION TECHNOLOGY 第39卷第6期 振动沉管挤密砂桩施工技术 王振刚，刘建新 (武警水电第二总队八支队，福建厦门361009) [摘要]振动沉管挤密砂桩凭借造价低廉、无污染等优点，被广泛应用于软黏土、淤泥质土以及松散砂性土的地基 处理中.以揭阳潮汕机场地基处理工程为例，结合地质情况，介绍排水固结法在地基处理中的应用.详细述振 动沉管挤密砂桩的施工原理、施工工艺、质量控制和质量通病防治.结果表明，该方法可有效处理淤泥和淤泥质土 等软弱地基，减少沉降. [关键词]地基工程；软基处理；振动沉管挤密砂柱 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2010)06-0088-03 Construction Technology of Vibration Sinking Compaction Sand Piles Wang Zhen'gang Liu Jianxin (No.8 Detachment No.2 Hydropower Force of Armed Police Xiamen Fujian 361009 China) Abstract:The vibration sinking paction sand piles are widely adopted in foundation treatment of soft clay mucky soil and loose sandy soil due to the characteristics of low cost and less pollution.Taking the foundation treatment of Chaoshan Airport in Jieyang as example the drainage consolidation method is applied during the process of foundation treatment.Besides construction principles construction technology quality control and prevention of mon quality problem are outlined.The results show that this method can be used to the treatment of soft foundation such as silt and mucky soil which can decrease settlement. Key words:foundation engineering;soft foundation treatment;vibration sinking paction sand pile 1工程概况 机场所在场地特殊地层为软土层，其中淤泥软土 揭阳潮汕机场位于汕头、潮州和揭阳三市之间，揭层广泛分布在地基浅层，平均厚度3.66m 且分布不连 阳市揭东县炮台镇以东登岗镇以北，枫江以南，虎岗山续，呈薄层状或透镜体状产出；上卧淤泥质土层平均厚 以北山脚.机场飞行区按照4E规划，本期按照4D建 度5.56m;下卧淤泥质土层平均厚度6.70m.3层软土 设，航站楼按照满足2020年旅客吞吐量450万人次设 均呈流塑~软塑状，属中高灵敏度、高强压缩性土层， 计，新建一条长2800m的跑道及滑行道系统. 在施工中易产生...
振动沉管挤密砂桩施工技术.pdf
