GROUT INJECTION TUBE DEVICE

摘要

PURPOSE:To confirm the injection range of a grout by connecting a swivel closing an electric circuit, a triple-injection tube provided with a cable conduit, and an injection tube rod having an electrode connected to its outside. CONSTITUTION:A grout injection tube device in which a swivel having a terminal 1 connected with a cable connector through a rotary terminal 3 and a brush 4 on its head and a middle tube 5 and an inner tube 9 are water-tightly supported is connected to an injection tube rod and an injection tube rod with an electrode is penetrated into a place different from a grout injection port A. Under a condition that voltage is applied between A-B and between A-C, a grout is injected and electric resistances at each measuring terminal are measured.