公路桥梁台后路基沉陷处治

公路桥台台后路基沉陷病害,导致台背与构造物连接处的路面出现台阶,严重影响公路的使用功能。通过对G310线牛背至北道公路桥台台后路基沉陷病害的实地调查及处治效果的追踪,分析桥头路基填土高度、填料及压实质量、构造特点、排水功能、汽车荷载等因素对台背路基沉陷的影响,总结砂砾换填、高压注浆及桥头搭板技术的实施及控制方法。

Subgrade settlement treatment of highway bridge abutment

The disease of roadbed settlement after the abutment of highway bridge,which leads to the emergence of the road surface between the abutment and the structure,seriously affects the use of the highway.Through field investigation and treatment effect of G310 line cattle back to North Road abutment roadbed cave disease tracking, analysis of the impact of bridge embankment fill height,filling and compaction quality,structure characteristics,drainage function,vehicle load and other factors on the back roadbed subsidence,implement and control method of gravel filling,high pressure. Grouting and slab technology.