膨胀土地区公路路堤填筑施工技术

Roadbed filling technology in area of the expansive soil

由于膨胀土特殊的工程性状使膨胀土路堤填筑有别于非膨胀土,当路堤填筑遭遇膨胀土问题时,通常采取石灰改性的处治措施来改善膨胀土的工程特性,以满足路堤填筑质量控制要求;该文通过对某高速公路工程膨胀土区段的路堤填筑施工技术介绍,阐明了膨胀土路堤填筑的质量控制要求和施工工艺方法,可为类似工程提供参考。

Roaded filling technology of expansive soil differs from non-expansive soil because of its special engineering properties.When the construction of roadbed filling encounter the problems of expansive soil,usually lime-modified treatment measures are taken to improve the engineering properties of expansive soils in order to meet the quality requirements.Based on a highway roadbed construction in area of expansive soil,the filling requirements and construction technology of expansive soil are introduced and clarified to provide a reference for similar projects.