Sub grade Earthworks Filling Construction Technology ChartConstruction preparation SurveyingSub grade laying outSite clearanceSub grade bottom Loose soil impactingChoosing mate ridsFilling by layerPaving &levelingRolling by machineChecking densityPre-pressureSinking periodLeveling & formingRemoving and changingCheckingWatering or dryingImpacting testingMachine cutting Organizing machine &materialsSide pile & side slopeRe-survey central line & elevationTechnology schemeImpacting testingDrainage facilities