基于双护盾TBM的导向系统研究

Guiding System Based on Double-shield TBM

为满足隧道施工中双护盾硬岩隧道掘进机位姿的测量需求,研发一种能够提高其数据准确度的双护盾位置检测装置,包括感光靶、激光靶、激光发射器、全站仪、棱镜等硬件,并研究双护盾导向系统设计、测量算法的实现、激光位置检测装置误差修正算法。为验证整个算法的正确性以及软件的稳定性,进行CAD模拟和软硬件联合调试,并利用全站仪进行模拟测量。结果显示:采用该算法计算的坐标与全站仪测量的真实坐标相比,误差在5mm以内,可满足隧道掘进机施工测量的需要。

In order to meet the attitude measurement requirement of double-shield TBM construction, a double-shield position detecting device including photographic target, laser target, laser transmitter, total station, prism, etc. is developed, which can improve its accuracy. Meanwhile, the design of the double-shield guiding system, realization of measurement algorithm, and error correction algorithm of laser position detection device are studied. Finally, the CAD simulation and joint debugging of software and hardware are performed and total station is used for analog measurement, so as to verify the validity of the algorithm and the stability of the software. The results show that the error of coordinates calculated by the above-mentioned algorithm is less than 5 mm comparing to that calculated by total station, which can meet the construction surveying requirement of double-shield TBM.