| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve detection accuracy of a relative position with an opposite shield machine compared to a configuration using an ultrasonic sensor even while preventing breakage of a scale member, in a shield machine capable of confirming the relative position underground. <P>SOLUTION: A shield machine 1B is provided with a partition 20 on a position behind a cutter 14 on a front side skin plate 19F. The partition 20 is provided with a cylindrical body 27 capable of receiving, in an inner side space, a small diameter boring part delivered from the opposite shield machine in an excavation direction of the shield machine, and the cylindrical body 27 is provided with a sensor plate 21 for measuring a position in a bottom surface direction in the inner side space of the small diameter boring part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
