| 摘要 |
PROBLEM TO BE SOLVED: To reduce the cost for pier reinforcement and shorten the term of works by using an exclusive machine having a magnet on a steel plate installing hand on the tip of an arm provided on a self-traveling type base machine, holding up a lining steel pipe, moving it to a pier position, and installing the steel pipe to the pier circumference. SOLUTION: A pier reinforcement exclusive machine 10 has a steel pipe installing hand 13 rotatably provided on the tip of an arm 12 provided on a self-traveling type base machine 11. The hand 13 has a lateral pair of holders 14 having magnets 15 on both ends, the hand 13 moves the magnets 15 by expansion/contraction and opening/closing of the holders 14, a pier lining halved steel pipe 1 is attracted by ON of the magnets 15 and released by OFF thereof. A plurality of exclusive machines 10 are used to install halved steel pipes 1 to the circumference of a pier, the bonding edge parts of a pair of halved steel pipes 1 are bonded together by use of a lifter, a filler is injected to the clearance between the pier circumference and the halved steel pipe 1, whereby the reinforcement is completed. Thus, the pier can be reinforced without using a scaffold, and the cost and term of works can be reduced. |
