PNEUMATIC CAISSON EXCAVATOR RECOVERY APPARATUS EQUIPPED WITH LOCK FOR CARRYING-IN/OUT EXCAVATOR, AND PNEUMATIC CAISSON EXCAVATOR RECOVERY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an economical pneumatic caisson excavator recovery apparatus which contributes to shortening of a construction period, and to minimization of working hours of operators under a high-pressure environment at the time of repairing/recovering an excavator, and to provide a pneumatic caisson excavator recovery system.;SOLUTION: In the structure of the caisson excavator recovery apparatus, a shaft 7b with a lock exclusively for recovery of the caisson excavator is erected on a ceiling slab 1a separately from a material shaft 7, and a lock 12 for carrying-in/out the excavator and a man lock 4 in a man shaft 6 are connected together via an accessway 18. The interior of the excavator carrying-in/out lock 12 can be set to an atmospheric environment or alternatively to a high-pressure environment. Then at least one of a pneumatic working chamber 9 and the lock 12 for carrying-in/out the excavator is provided with a caisson excavator carrying device 28 for elevating the caisson excavator 2 toward the lock 12 for carrying-in/out the excavator, and a suspendingly carrying device such as a crane for carrying the caisson excavator 2 to the outside.;COPYRIGHT: (C)2005,JPO&NCIPI