桥梁控制网的精度估算

文章对桥梁控制网的精度估算方法进行探讨，提出了利用桥墩定位和跨距的精度作为控制网设计的精度准则，并给出考虑原始数据误差影响的精度估算数学模型，这对桥梁控制网的设计，精度分析以及铁路测量规则中有关桥梁控制网精度估算方法的制定，都有参考作用。

THE ACCURACY ESTIMATION OF BRIDGE CONTROL NETWORK

The paper discusses the methods of accuracy estimation in bridge control network. The limiting errors of pier positions and relative positions are used as the accuracy design criterion of control network. In the formula of accuracy estimation. the effects of initial data errors of higher order controls are taken into consideration. These researches would be helpful to the design and probably useful in the formulation of railroad surveying specifications in respect to accuracy estimation methods of bridge control network.