Performance Analysis of Fine Sand of Yangtze River and Research on Design and Construction Technology of Subgrade Section
With gradual increase of ecological environment and basic farmland protection awareness,much more fine sand of the Yangtze River is used as the fillings in the construction of roads along the Yangtze River according to local conditions.By analyzing the design of sand-filled subgrade section,the calculation of subgrade stability and the performance test of raw materials,trapezoidal cladding is defined as a stable and reliable structure for sand-filled subgrade,and fine sand of the Yangtze River is determined to be a kind of good subgrade fillings.The detailed application is studied to test and summarize mechanical combination,process flow and technological parameters,which suit sand filling of subgrade.The compaction degree detection and settlement observation subject to large-scale filling construction show good effect,and serve as a certain reference for similar projects.
fine sand of the Yangtze RiverPerformance testsand-filled subgradestability calculationsettlement observation
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