真空降水联合不同强夯工艺在仓储软土地基处理中的应用  

Application of vacuum dewatering combined with different dynamic compaction process in soft soil foundation treatment storage

作　　者：曾华健 李军 梅军[2] 潘忱 郑海波 ZENG Huajian;LI Jun;MEI Jun;PAN Chen;ZHENG Hai-bo(Jiangsu Geotechnical Engineering Co.,Ltd.,Nanjing 210019,China;Jiangsu Geological Engineering Survey Institute,Naiying 210012,China)

机构地区：[1]江苏省岩土工程公司,江苏南京210019 [2]江苏省地质工程勘察院,江苏南京210012

出　　处：《地基处理》2021年第1期64-70,共7页Journal of Ground Improvement

摘　　要：随着物流行业的迅速发展,物流仓储工程大面积软土地基处理的难题也逐渐增多。本文针对湖州市德清县某物流地基处理工程遇到素填土、粉质黏土、淤泥质粉质黏土等较厚软土地基,综合分析多种地基处理方法。在场地条件复杂的情况下,可采用真空降水联合强夯法、强夯置换、孔内强夯碎石桩等方法对大面积仓储地坪进行加固处理,来解决软土沉降、承载力不足以及不均匀沉降等问题。阐述真空降水联合强夯法处理软土地基的设计、施工工艺和检测结果,为类似工程提供工程经验。With the rapid development of logistics industry,the problems of large area soft soil foundation treatment in logistics storage engineering are increasing gradually.In view of the logistics for foundation treatment project in Deqing County,Huzhou City,this paper comprehensively analyzes a variety of foundation treatment methods for thick soft soil foundation.Such soils may include plain fill,silty clay,and muddy silty clay.So,vacuum dewatering combined with dynamic compaction method,dynamic compaction replacement and dynamic compaction gravel pile in the hole are used to reinforce the large storage floor to solve the problems of soft soil settlement,insufficient bearing capacity and uneven settlement.The design,construction technology and testing results of vacuum dewatering combined with dynamic compaction method for soft soil foundation treatment are elaborated,which can provide engineering experience for similar projects.

关 键 词：真空降水 强夯置换 孔内强夯碎石桩 软土地基 

分 类 号：TU470[建筑科学—结构工程]