Study on Soil Fetching Scheme of Expressway in Plain Area
In recent years,under the control of various factors such as expressways,ordinary national and provincial roads,rural roads,railways,navigable rivers,etc.,the average filling of expressways in plain areas is generally greater than 5 meters,and the construction of expressways requires a large amount of earthwork.However,according to the relevant notices of the Ministry of Natural Resources and the Ministry of Agricul-ture and Rural Affairs,it is strictly prohibited to occupy permanent basic farmland,while the basic farmland in plain areas is widely distributed,so it is not feasible to take soil nearby to build expressways,The soil borrowing scheme has become the main control factor restricting the construction of the project,involving the progress of the project and the project cost.Through the comparison of various engineering schemes of sub-grade,retaining wall,conventional bridge and pile-sheet bridge,this paper selects a reasonable engineering scheme.It also summarizes the soil borrowing methods of high-speed projects in plain areas to provide some reference for solving the soil borrowing scheme of expressway in plain areas.