Gyro - Tunnel Guidance System In modern trenchless construction, precision is everything. As tunnel alignments grow longer and more complex, featuring curved paths, restricted sightlines, and deep shaft launches, traditional guidance systems, such as laser theodolites and electronic water levels, begin to falter. This is where gyro tunnel guidance systems have stepped in, revolutionizing alignment control through advanced inertial navigation. At the heart of these systems lies either a Fiber Optic Gyroscope (FOG) or a Ring Laser Gyroscope (RLG). Unlike traditional tools that require continuous line-of-sight, gyros detect angular velocity and heading without external references. This allows operators to determine orientation in real-time, even in inaccessible or curved tunnel drives. By calculating the position based on internal motion sensing, gyro systems offer unprecedented flexibility, especially in trenchless applications such as pilot tube microtunneling and long-distance pip...
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