梨温高速公路进贤连接线跨浙赣铁路立交桥桥墩下沉原因分析及处治方案研究

Research on Processing Scheme and Analysis of pier Settlement Causes of Grade Separation Bridge Connecting Liwen Freeway and Jinxian Over Zhegan Railway

对梨温高速公路进贤连接线跨浙赣铁路立交桥1号桥墩下沉的原因从技术的角度进行了分析,并介绍了处治设计方案的比选及施工要点。

Friction pile gets friction from the undisturbed soil around it to brace its own weight and the loads from superstructure.The No.1 pier grade separation bridge and Jinxian connecting Liwen freeway and Jinxian over Zhegan railway is designed as a friction pile.According to the alteation work,the undisturbed soil around it was excavated with excavating machine.The pile sinded during construction.The causes of the sinking are analyzed from theory and technology,processing design scheme and the choice are intro...