| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a debris conveying device capable of contributing to the shortening of a construction period by lowering the moving frequency of a main body belt conveyor support device when face advances. <P>SOLUTION: In the debris conveying device related to this invention, an intermediate belt conveyor device 1 includes a head part 10 for transferring drilling debris at an optional position at a main body belt conveyor device 2. Thus, even when face advances, the rear end part of the intermediate belt conveyor device is moved to the vicinity of the advanced face without changing the position of the main body belt conveyor support device. <P>COPYRIGHT: (C)2012,JPO&INPIT |
