BREAKING METHOD OF CREEPING CONCRETE UNDER WATER

摘要

PURPOSE:To simply and effectively break the creeping concrete water by insertiing an under-water concrete breaker incorporated with an oil-pressure jack into a drawing hole of interlocking member. CONSTITUTION:An under-water concrete breaker 13 is inserted into the drawing hole 10 of an interlocking pipe by using a Kelley excavator 7. The breaker 13 is then made to work for stepwise breaking creeping under-water concrete 6 from the upper end to the lower end by utilizing an existing unit wall as a reaction force by means of the piston of the oil-pressure jack 18.