桥梁施工控制网精度的估算

探讨了桥梁施工控制网的精度估算问题，提出了利用桥墩定位的精度作为控制网设计的精度准则。指出，应根据所设计的控制网、桥梁设计图、每个桥墩的施工放样的方法，用间接平差模型计算桥墩放样精度。这时桥梁控制网的设计、精度分析有参考作用。

The Estimation of the Precision of the Control Network of Bridge Construction

This paper probes into the precision estimation of the control network of the bridge construction, puts forward the suggestion of using the precision of the location of pier as the precision for the design of the control network, and points out that should be on the basis of designed control network, bridge design drawings and construction layout method for each pier, and adopt indirect error compensation model to calculate the precision of pier layout, which can be used as the reference for the design of the precision of bridge control network and the precision analysis.