[Chongqing] Urban Bridge Construction Survey Scheme (MCC)

Uploaded on: October 15, 2019 14:30:03 come from: Road and bridge municipal administration / Road and bridge construction design / construction technology

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[Project overview] Total length of bridge: 1276.599m Elevation system: Yellow Sea elevation system Coordinate system: Chongqing independent coordinate system Landform: mountainous intervisibility condition: poor [content] The construction shall be carried out according to the coordinate points and elevation control points given in the construction control network achievement table in the project construction control network survey technology summary and the Class III leveling achievement table... The construction elevation control base points shall be buried along the inner and outer periphery of the project from the whole to the local, from the high-level control to the low-level control, from the main control line to the encrypted control line, and first control, The number of points should be convenient to ensure the construction and use of the area. The total station should be placed on the control point close to the setting out pile with the DSZ2 self..., and the control point of the first level traverse should be looked back as far as possible. With reference to the pile by pile table prepared by the highway design, the polar coordinate method... The piers are constructed by sections and layers, and the height of each section is about 6~8m. After the completion of the pier formwork support, Use total station to align models... [including charts] 1. List of field survey instruments 2. Layout of survey control network (CAD) 3. Attach calculation table of traverse results

[Chongqing] Urban Bridge Construction Survey Scheme (MCC) - Figure 1

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