CORRECTION DEVICE FOR ERECTING POSITION OF UNDER STRUCTURAL CENTER COLUMN, AND INCLINATION MEASURING DEVICE

摘要

PURPOSE:To enable the erection of an under structural center column with high degree of accuracy and safely by using an inclination measuring device consisting of a TV camera, etc., and correcting up and down positions and inclination with a plurality of jacks and a vibrator. CONSTITUTION:The under structural center column 52 is suspended with a crane, and a vibrator 53 is operated to erect the column in a hole while preventing slime from being included. At that time, up and down position correcting jacks 23 and 24 mounted on a rotary holder 2 are operated to correct up and down positions of the under structural center column 52. While monitoring a measured picture of an inclination measuring device 3 consisting of a bottomed pipe body 31, a rope body 32, a weight 33, a light emission source 34, a target 35, a TV camera 36, etc., an underground inclination correcting jack 6 and a ground inclination correcting jack are operated, and the inclination of the structural center column 52 is corrected. Successively, a tremie pipe 54 is inserted into the hole, and concrete is placed. At that time, while operating the vibrator 53, machining tolerances is reconfirmed, and a position is recorrected, if necessary.