INNER PACKER PRESSING STRUCTURE OF STEEL TUBE MULTISTAGE GROUTING APPARATUS

摘要

The present invention relates to an inner packer pressing structure of a steel tube multistage grouting apparatus. According to the present invention, the inner packer pressing structure of a steel tube multistage grouting apparatus is characterized in that a steel tube is inserted into the inner side of a perforation hole, a plurality of inner packers and an outer packer are installed inside and outside the steel tube, and the plurality of inner packers are connected by a support unit. According to the present invention, manufacturing costs can be reduced and construction can be more easily performed.;COPYRIGHT KIPO 2020