| 摘要 |
PURPOSE:To perform survey efficiently and accurately by moving a movable measuring device on which a gyroscope is mounted along a truck from a known point where the rear truck towed with a shield digging machine is located to the digging machine, and detecting the moved point. CONSTITUTION:Rails 20 are provided from a known point (c) where a rear truck towed with a shield digging machine is located to the digging machine. A movable measuring device on which a gyroscope is mounted is moved along the rails 20. Thus, a bearing angle is continuously measured with the gyroscope. A rotary encoder is provided at the running part of the movable measuring device, and the running distance is continuously measured. Thus, the position of the digging machine is automatically detected based on the known point (c). The data which are measured and stored with the movable measuring device are transmitted into a radio communication equipment and inputted into the operation processing device of a computer. Thus, the efficient, accurate measurement can be performed. |
