2014年7月上 施工技术 第43卷第13期 CONSTRUCTION TECHNOLOGY 71 D0I:10.7672/sgjs2014130071 潮汕机场软土地基处理试验研究及沉降规律分析* 何春保 (华南农业大学永利与土木工程学院，广东广州510640) [摘要]为加速地基沉降，减小工后沉降，结合潮汕机场软土地基处理，在试验区不同位置分别采用塑料排水板堆 载预压法、袋装砂井堆载预压法和砂井堆载预压法3种不同的地基处理方法进行研究.同时对软土表面沉降、分 层沉降、孔隙水压力等进行监测.监测结果表明，在潮汕机场软土地基处理采用堆载排水固结法明显改善了软土 层的排水固结过程，技术可靠.并通过堆载预压试验和计算分析对比，对工后沉降进行了预测分析，提出了适用于 潮汕机场软土地基处理沉降估算经验公式. [关键词]地基；软土；机场；堆载预压；试验 [中图分类号]TU433 [文献标识码]A[文章编号]1002-8498(2014)13-0071-05 Experimental Research and Settlement Features Analysis of Soft Foundation Treatment in Chaoshan Airport He Chunbao College of Water Conservancy and Civil Engineering South China Agricultural University Guangzhou Guangdong 510640 China) Abstract:In order to accelerate the settlement of foundation and decrease the settlement after construction based on soft foundation treatment of Chaoshan Airport three different methods of foundation treatment such as surcharge preloading method with plastic drainage plate packed drain well or sand well are analyzed in soil consolidation.The original foundation settlement the settlement in layers of the embankment earth and the pore water pressure in earth mass are monitored the monitored results indicate surcharge preloading method can improve drainage and consolidation process of soft soil obviously and it has advantages of reliability.Through analysis and parison between preloading test and calculation analysis the settlement after construction of soft foundation treatment engineering is predicted.In addition an em...
潮汕机场软土地基处理试验研究及沉降规律分析.pdf
