类矩形盾构隧道施工测控技术研究

Study on construction measurement and control technology of quasi-rectangular shield tunnel

本文分析了类矩形盾构隧道的特点,与传统的圆形盾构隧道进行了对比分析,优化了类矩形盾构隧道施工测量方法,引进了三维激光扫描技术进行断面测量,解决了普通断面扫描技术无法准确提取单侧隧道中心的问题,成功完成了类矩形盾构隧道断面的测量提取工作。

The characteristics of quasi-rectangular shield tunnel are analyzed.The differences are contrasted and analyzed with the traditional circular shield tunnel.The construction measurement methods of quasi-rectangular shield tunnel are optimized.Three-dimensional laser scanning technology is introduced to measure the section,which solved the problem that the common section scanning technology could not accurately extract the center of the single side tunnel,The measurement and extraction of quasi-rectangular section are successfully completed.