某境外洪泛区高速公路施工便道水泥改良土方案探究

Exploration of Cement Improved Soil Scheme for Construction Access Road of a Floodwater Area Expressway Abroad

某境外洪泛区高速公路,平均每年有4-6个月处于洪泛期,本项目土方量近640万方,对便道施工要求高,线路周边土质较差,通过试验选择合适掺量的水泥改良土方案,以及对比填砂包边便道方案,选择以满足便道承载力要求,同时达到效益最佳的便道施工方案。

A certain overseas flood prone expressway is in a flood prone period for an average of 4-6 months per year.The earthwork volume of this project is nearly 6.4 million cubic meters,which requires high construction requirements for the access road.The soil quality around the route is poor.Through experiments,a suitable cement improved soil scheme was selected,and compared with the sand filled edge access road scheme,the access road construction scheme was selected to meet the bearing capacity requirements and achieve the best efficiency.