秦岭特长隧道Ⅱ线平导洞内控制测量和贯通测量

Control Measurement and Hole-Through Survey within Parallel Adit of No. Ⅱ Line in Qinling Extra-Long Tunnel

针对秦岭隧道Ⅱ线平导(出口段)洞内控制测量的施测等级、使用的仪器、施测方法及数据处理方法,介绍了隧道高精度贯通结果及贯通测量的实施方法,最后对长大隧道的控制测量提出了建议。

As far as the measurement grade, the instruments adopted in measurement, the measurement method and the data processing method of control measurement within parallel adit (exit segment) of No. II line in Qinling tunnel are concerned, this paper describes the high -accuracy hole -through results and the concrete methods of hole - through survey in tunnel. Finally, it puts forward a proposal for control measurement in extra long tunnel.