2013年1月下 施工技术 第42卷第2期 CONSTRUCTION TECHNOLOGY 95 高真空击密联合置换法处理油罐软土地基技术 蒲晓芳，楼晓明，徐士龙，贺里平 (上海港湾软地基处理工程（集团）有限公司，上海200092) [摘要]提出了高真空击密联合强夯置换处理油罐软土地基的方法，用建筑垃圾作为强夯置换料，形成置换墩，置 换墩达到下部硬土层，用高真空击密加固墩间土.通过对地基处理过程中墩间土的静力触探试验和标贯试验等检 测分析，以及地基处理后的静载荷试验检测、充水预压效果检测等，发现在该地质情况下采用该方法复合地基能满 足230kPa的使用要求. [关键词]地基；高真空击密；置换墩；承载力；强夯 [中图分类号]TU472 [文献标识码]A [文章编号]1002-8498(2013)02-0095-05 Treatment of the Soft Ground of Oil Tank with High Vacuum Densification and Replacement Pu Xiaofang Lou Xiaoming Xu Shilong He Liping Shanghai Harbor Soft Soil Treatment Engineering Co.Ld. Shanghai 200092 China) Abstract:This paper proposed a method for the treatment of the soft ground for oil tank foundation using a bination of high vacuum densification and bining dynamic replacement methods.Construction wastes were used as the replacement to form a replacement column which reached the hard soil below. High vacuum densification method was then employed to improve the soft soils between the columns.CPT and SPT tests were performed to the soil between columns during the treatment.Static loading tests were performed after the treatment.Trial tests were also performed with water fully charged in the oil tanks. The test results show that the bearing capacity of the posite foundation could satisfy the requirement of 230kPa. Key words:foundations;high vacuum densification;replacement column;bearing capacity; dynamic paction 0引言 形成的复合地基强度增长有限，主要是因为该法对 “高真空击密法”是一种快速加固软土地基的 墩间土承载力提高有限，仅靠形成的墩往往难以满 专利技术，是通过数遍的高真空，并结合数遍合...
高真空击密联合置换法处理油罐软土地基技术.pdf
