盾构法隧道工程施工的定向测量

Directional Survey Technology of Shield-driven Tunneling Technique for Yangtze River Pipeline Crossing of West-to-East Gas Transmission Pipeline Project

介绍了在红花套长江穿越盾构隧道施工中所采用的泥水加压平衡式盾构法施工工艺。针对盾构法施工的特点,进行了测量贯通误差分析,通过对各种测量方案的比选,提出了采用联系三角形定向测量法进行竖井定向测量的技术方案,为今后类似工程提供了科学依据。

In the paper, the shield-driven tunneling technique used in Honghuatao pipeline crossing in Yangtze River for West-to-East Gas Transmission Pipeline Project is introduced. In the light of this technique ' s characteristics,the analysis on the survey pass-through error is made. According to the comparison results of different survey programs, the tying triangle directional survey program is presented to directionally survey the vertical shaft and is successfully applied to this pipeline project.