土木工程檢測技術專業教學資源庫CPⅢ平面控制網布設要求

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RequirementsforCPⅢControlNetworkLayoutRequirementsCPⅢ平面控制點布設要求1.LayoutRequirementsforCPⅢControlPointsCPⅢ平面控制網測設網形2.SettingFormsofCPIIIControlNetworkSurveysCPⅢ平面控制網布設要求Lead-inHowtofigureoutthehorizontalpositionofpoints?ToestablishaCPIIIControlNetworkCPⅢ平面控制網布設要求導入如何確定點的平面位置？建立CPⅢ平面控制網LayoutRequirements1.LayoutRequirementsforCPⅢControlPointsArrangedontheoutsideoftherailwaytrackwithadistanceof3-4metersfromthetrackcenterline.CPⅢ控制點宜成對設于線路外側，距線路中線的距離應為3~4m；Thedistancebetweenthetwocontrolpointsshouldbebetween60and80m.CPⅢ控制點間距宜為60~80m；CPⅢ平面控制網布設要求CPⅢ平面控制點布設要求LayoutRequirementsThepositionofthethirdCPIIIcontrolpointisrequiredtobe0.3mhigherthanthedesignedelevationoftracksurface.CPⅢ控制點位置要求高于設計軌道高程面0.3m;

CPIIIcontrolpointsshouldbesetinstableandreliableplaceswithclearandcompleteidentifications.CPⅢ控制點應設置穩固、可靠的地方，標志清晰、齊全。CPⅢ平面控制網布設要求1.LayoutRequirementsforCPⅢControlPointsCPⅢ平面控制點布設要求LayoutRequirements1）Thedistancebetweenhorizontalobservationpointsisusually120m.平面觀測測站間距應為120m；

EachCPIIIcontrolpointshouldbemeasuredthedirectionanddistancefromatleast3freemeasurementstations.每個CPⅢ點至少應保證有三個自由測站的方向和距離觀測量。CPⅢ平面控制網布設要求2.SettingFormsofCPIIIcontrolnetworkSurveysCPⅢ平面控制網測設網形CPⅢCPⅢCPⅢCPⅢ60m120mLayoutRequirements2）thedistancebetweenhorizontalobservationpointsshouldbearound60m.平面觀測測站間距應為60m左右；EachCPIIIcontrolpointisrequiredtobemeasuredthedirectionanddistancefrom4freemeasurementpoints.每個CPⅢ控制點應有4個方向和距離交會。CPⅢ平面控制網布設要求CPⅢCPⅢCPⅢCPⅢ60m2.SettingFormsofCPIIIcontrolnetworkSurveysCPⅢ平面控制網測設網形LayoutRequirementsCPⅢ平面控制網布設要求CPⅢ平面控制點布設要求1.LayoutRequirementsforCPⅢControlPointsCPⅢ平面控制網測設網形2.SettingFormsofCPIIIControlNet