高速公路路基拓宽改造质量控制技术

Quality control technology of highway subgrade widening and reconstruction

对高速公路路基拓宽后出现纵向裂缝的原因进行分析,针对性的提出路基拓宽改造过程中的质量控制要点,尤其对新旧路基的衔接处从台阶处理、基底处理、分层填筑分层碾压等方面介绍了具体的控制技术,以保证衔接处的压实质量,对于整个拓宽路基的质量保证具有重要意义。

This paper analyzed the causes of longitudinal cracks after highway roadbed widening, put forward the quality control key points in roadbed widening transformation process, especially introduced the specific control technology of junction points of old and new roadbed from the steps treatment, base treatment, layered filling, layered rolling and other aspects, to ensure the compaction quality of junction points, had great significance to the quality assurance of entire widening roadbed.