高速公路拼接拓宽工程沉降控制标准研究

摘要

根据拼接路基的变形特点，结合已有的工程实践经验，提出了采用新、老路基横坡的改变量及工后沉降量作为改扩建工程的控制标准。采用此标准，可有效控制通车后的工后沉降量及不均匀沉降，并节约软基处理费用。%According stitching roadbed deformation characteristics,combining engineering experience, the paper take the change in cross slope of the old and new roadbed and the amount of post-construc-tion settlement as a control standard for expansion project.With this standard,the amount of post-construction settlement and differential settlement can be effectively controlled after the opening,and the treatment cost of soft ground can be reduced.