基于等边直伸型导线隧道施工控制测量精度研究

Research on measurement accuracy of construction control based on equilateral straight extension wire tunnel

布设高精度的平面控制网是实现隧道贯通的关键所在,文中针对六沾铁路三联隧道,布设等边直伸型导线网,进行控制测量精度估算,点位误差分析,精度校检,进而在理论上加以论证等边直伸型导线网可以减小隧道贯通误差.

The high-precision plane control network was the key to realize the tunnel penetration.In this paper,the six-drain railway triple tunnel was equipped with an equilateral straight-type wire network to carry out controlling the measurement accuracy estimation,analyzing the point error,checking the precision,and then theoretically.Furthermore,it was theoretically demonstrated that the equilateral straight-type wire mesh could reduce the tunnel penetration error.