CAJ | 학술논문

结合京沪高铁李窑试验段工程实际,为满足路基工后沉降不大于15 mm的技术要求,采用CFG桩对无砟轨道路基地基进行加固。长螺旋钻孔管内泵压混合料成桩过程中,加强施工过程管理,对钻进速度、钻机电流、混合料施工配合比和拔管速度等关键环节进行了有效的控制,减少了故障的发生,保证了桩体质量。
결합경호고철리요시험단공정실제,위만족로기공후침강불대우15 mm적기술요구,채용CFG장대무사궤도로기지기진행가고。장라선찬공관내빙압혼합료성장과정중,가강시공과정관리,대찬진속도、찬궤전류、혼합료시공배합비화발관속도등관건배절진행료유효적공제,감소료고장적발생,보증료장체질량。
Combined with the engineering practice of Beijing-Shanghai High-speed Railway Liyao Section,CFG pile was used to reinforce ballastless track subgrade in order to meet the technical requirement for post-construction subgrade settlement no more than 15 mm.During piling of pressure pumped mixture by continuous auger drilling,the drilling rate,rig current,mixture proportion and pulling speed were controlled effectively during construction,which reduced failure and ensured pile quality.