Abstract：Abstract：Research purposes： The settlement control on soft soil foundation is the key technology in the subgrade construction of high-speed railway. Combined with the development and construction of high-speed railway in China, the representative experimental sites from Beijing-Shanghai high-speed railway, Wenzhou-Fuzhou railway, Shanghai-Hangzhou passenger dedicated line were chosen, which represented different region, different genetic and different treatment of soft soil. Based on the in-site test data, the bearing and deforming properties and settlement control effect were researched systematically.
Research conclusions：(1) Drainage consolidation method of soft soil was not proposed using in ballastless track because of its rigid settlement control criterion, however, combined with pre-loading technique and enough storage time, drainage consolidation method could meet the post-construction settlement requirements. (2) Using the soil-cement pile composite foundation in ballastless track should have experience and enough storage time, and it should be cautious. (3) The pile-net structure and pile-raft structure of cement-flyash-gravel pile or prestressed reinforced concrete pile could be used in soft soil foundation of ballastless track because of good settlement control effect and short stabilization time. （4）The pile-plank structure could control the settlement excellently, but because of the high cost it was only used in special conditions. (5) The conclusions could be used in the treatment method choosing and settlement control of soft soil of high-speed railway.
［1］TB 10621—2014 高速铁路设计规范［S］.
TB 10621—2014, Code for Design of High Speed Railway［S］.
［2］TB 10035—2006, 铁路特殊路基设计规范［S］.
TB 10035—2006, Code for Design on Special Subgrade of Railway［S］.
［3］TB 10106—2010. 铁路工程地基处理技术规程［S］.
TB 10106—2010. Technical Code for Ground Treatment of Railway Engineering［S］.
［4］魏永幸, 薛新华. 客运专线无砟轨道铁路复合地基沉降预测研究［J］. 铁道工程学报, 2012(10): 28-30.
Wei Yongxing, Xue Xinhua. Study on the Settlement Prediction of Passenger Dedicated Railway Composite Foundation［J］. Journal of Railway Engineering Society, 2012(10): 28-30.
［5］赵勇, 陈占, 徐红星.高速铁路无砟轨道路基沉降监测和研究［J］. 铁道工程学报, 2012(6):45-59.
Zhao Yong, Chen Zhan, Xu Hongxing. Monitoring and Research on Subgrade Settelment of Ballastless Track of High-speed Railway［J］. Journal of Railway Engineering Society,2012(6):45-59.
［6］顾湘生, 赵新益. 软土地基路桥设计参数试验研究总报告［R］. 武汉: 中铁第四勘察设计院集团有限公司, 2004.
Gu Xiangsheng, Zhao Xinyi. Synthesis of the Experimental Research on the Subgrade and Bridge Design Parameters of Soft Soil［R］. Wuhan: China Railway Siyuan Survey and Design Group Co. Ltd, 2004.
［7］顾湘生, 赵新益. 高速铁路软土地基沉降控制试验研究［R］. 武汉: 中铁第四勘察设计院集团有限公司, 2005.
Gu Xiangsheng, Zhao Xinyi. The Experimental Research on the Settlement Control of Soft Soil High-speed Railway Subgrade［R］. Wuhan: China Railway Siyuan Survey and Design Group Co. Ltd, 2005.
［8］余雷. 温福铁路深厚软土路堤地基加固方法研究［R］. 武汉: 中铁第四勘察设计院集团有限公司, 2009.
Yu Lei. The Study on the Foundation Treatment Methods of Thick Soft Soil of Wenzhou-Fuzhou Railway［R］. Wuhan: China Railway Siyuan Survey and Design Group Co. Ltd, 2009.
［9］周青爽, 梁龙标. 桩板结构在沪杭客专软土路基工程中的应用研究 ［R］. 武汉: 中铁第四勘察设计院集团有限公司, 2011.
Zhou Qingshuang, Liang Longbiao. The Application Research on the Pile-plank Structure Using in the Soft Soil Subgrade of Shanghai-Hangzhou Railway Passenger Dedicated Line［R］. Wuhan: China Railway Siyuan Survey and Design Group Co. Ltd, 2011.
［10］顾湘生, 赵国堂, 孙红林, 等. 高速铁路深厚软土地段地基加固处理与路基填筑技术综合试验研究［R］. 武汉: 中铁第四勘察设计院, 2012.
Gu Xiangsheng, Zhao Guotang, Sun Honglin,etc. The Field Experimental Research on the Thick Soft Soil Foundation Treatment Techniques and the Subgrade Filling Techniques of High-speed Railway［R］. Wuhan:China Railway Siyuan Survey and Design Group Co. Ltd,2012
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