康家院隧道地下控制网设计与贯通误差计算

Design of the underground control network and the calculation of the transfixion errors in Kangjiayuan tunnel

文中以康家院隧道为工程实例设计了多种类型的隧道地下控制网网形,并对各网形进行贯通误差计算和精度分析比较,在满足精度要求下,选择合适的地下控制网。实验表明,交叉导线网适合布设为该隧道的地下控制网。

In this paper,the network of the underground control network of various types of tunnels was designed with Kangjiayuan tunnel as an engineering example. The calculation of the transfixion? errors and the accuracy analysis of each mesh were carried out. Under the accuracy requirements,the appropriate underground control network was selected.Experiments showed that the cross-wire network was suitable for the underground control network of the tunnel.