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Soft ground treatment is the technical difficulty of the of roadbed design and construction , but also easy to cause uneven track key factors , attaches great importance to this issue at home and abroad , especially in China , the vast , complex geological conditions , together with the railway line across large area , high - speed railway is strict control of settlement , including the effect of CFG pile in soft foundation treatment , including construction technology, quality control measures , ground treatment effect evaluation conducted some research and made ??some important engineering practice conclusions and understanding . Not long high-speed railway construction time speed of more than 350 km of high-speed railway construction history just a few years , in the refinement of the soft ground treatment and control of scientific aspects also need in-depth study and practice , in order to meet the high-speed railway line ride comfort requirements of the foundation . Beijing-Shanghai high-speed railway is the first high-speed rail project in the true sense of our construction , along adverse geological conditions exist , at the same time the level of construction technology , construction workers are unskilled , largely engineering construction risk. In order to avoid the risk , one of the main problems is how to improve the reliability of the construction technology of soft ground , apparently based construction technology experience in major construction projects in need of further research , the construction technology more systematic and scientific . The characteristics of this thesis CFG pile in the construction of the Beijing-Shanghai high-speed railway Qufu East Station field practice for premises poor geological conditions , large projects , a tight schedule to study several aspects : 1 , the Beijing-Shanghai high-speed railway using design philosophy and structure in the form of CFG pile foundation treatment ; 2 , the Beijing-Shanghai high-speed railway CFG pile foundation treatment of the construction process and construction of key technologies ; CFG pile construction quality control ; 4 CFG pile construction organization for scientific reasonable arrangements to ensure that the premise of quality, schedule , and achieve economic rationality ; CFG pile construction testing and evaluation . Explore the above research content through the analysis of the data collected in the field , the establishment of the system of CFG pile construction technology , to provide guidance for future high-speed railway CFG pile construction .
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