MEASURING DEVICE FOR PROPULSION LOCUS AND PROPULSION ATTITUDE IN PROPULSION SHIELD TUNNELING METHOD, MEASURING METHOD, PROPULSION LOCUS CONTROL DEVICE AND PROPULSION LOCUS CONTROL METHOD

PROBLEM TO BE SOLVED: To carry out boring work, while grasping the whole of the propulsion locus of a shield machine, and to carry out a control operation of the shield machine by accurately measuring the attitude of the machine. SOLUTION: Then are provided angle sensors S1, S2, S3, S4, S5, S6 which are provided in a shield machine 1 and are capable of measuring a three- dimensional angle displacement changing along with boring, a distance sensor 17 to measure a boring distance from the drilling starting point of the shield machine, an arithmetic unit 16 to compute the propulsion locus and the propulsion attitude from the output of each sensor and a device 16 to display and/or output the propulsion locus information and the propulsion attitude information outputted from the arithmetic unit.