Excavation and earth removal equipment and excavation and earth removal method

摘要

PROBLEM TO BE SOLVED: To provide an excavation/earth removable device and an excavation/earth removal method capable of excavation, even when restricting input of a bucket type excavation means such as a clamshell.;SOLUTION: In excavation/earth removal processing in a cylindrical wall body 3, when it is difficult to input the clamshell 15 downward due to the existence of an obstacle Q, the clamshell 15 inputted in the cylindrical wall body 3 in a suspending position P1 from a crawler crane 12, is offset by a predetermined quantity M with every wire rope 14 by a guiding device 16. The excavation/earth removal processing is performed by inputting the clamshell 15 again downward from its offset position.;COPYRIGHT: (C)2007,JPO&INPIT