2011年12月下 施工技术 第40卷第355期 CONSTRUCTION TECHNOLOGY 47 新近吹填淤泥地基加固效果分析 李小梅，唐彤芝2，关云飞2，黄家青2，盛东升2 (1 上海港湾软地基处理工程（集团）有限公司，上海200092；2.南京水利科学研究院，江苏南京210024) [摘要]针对真空预压排水固结法处理新近吹填淤泥地基工程，对采用不同长度竖向排水体的两个加固区域进行 了现场试验研究，通过对比分析两个加固区的地表沉降、膜下真空度、孔隙水压力等现场监测结果及十字板试验、 载荷板试验等检测结果以及室内土工试验所得的土体物理力学性质指标，得出结论：真空预压法处理新近吹填淤 泥地基不仅可以达到一定的加固效果，而且通过延长竖向排水体的长度在一定程度上可以提高土体的固结效果. [关键词]地下工程；地基处理；真空预压；吹填淤泥；监测；试验 [中图分类号]TU753.2 [文献标识码]A[文章编号]1002-8498(2011)24-0047-04 Analysis on Reinforcement Effect of the Recently Hydraulic Filled Mud Foundation Li Xiaomei' Tang Tongzhi Guang Yunfei2 Huang Jiaqing? Sheng Dongsheng? (1.Shanghai Harbour Soft Soil Treatmeni Engineering Company Shanghai 200092 China; 2.Nanjing Hydraulic Research Institute Nanjing Jiangsu 210024 China) Abstract:Some recently hydraulic filled mud foundation was consolidated by vacuum preloading method based on the experimental research on the two pre-reinforcement areas whose vertical drainage body have different length.The monitoring results are analyzed including the ground surface settlement vacuum degree under the membrane and the pore water pressure.Combining with the test results of the shear strength of vane shear test and the plate loading test and the soil physical and mechanical properties acquired by geotechnical test it is concluded that the reinforcement effect of the hydraulic filled mud foundation consolidated by vacuum preloading method can be increased further by lengthening the vertical drainage body to some extent. Key words:undergr...
新近吹填淤泥地基加固效果分析.pdf
