Research of Settlement Characteristics for High Filling Subgrade in One Beijing Highway

The settlement of high filling subgrade is one of the major factors end to some highway diseases,such as vehicle bump approaching bridge,different deformation,crack and so on.Limited by short construction period and not preloading conditions,high attention must be paid to controlling filling progress and settlement characters of subgrade.Effective measurements are taken to control some engineering problems,resulting from settlement of high filling subgrade,during highway construction and operation.Taking one highway in Beijing for example,some features of settlement and deformation of the high filling subgrade are discussed due to different foundation nature,engineering geology,and construction method in this paper.The results will offer directly scientific basis for decision of design,construction and operation of the highway.