DETERMINATION APPARATUS OF REINFORCED ROADBED THICKNESS

摘要

PURPOSE: A railway reinforced roadbed thickness computing apparatus pressing a packer with fluid pressure is provided to perform water-tightly inspection of a conduit line using correlation of the amount of leakage and air pressure change amount. CONSTITUTION: A railway reinforced roadbed thickness computing apparatus pressing a packer with fluid pressure comprises a packer apparatus, a pressure sensor(20), a signal conversion amplifier(30), a MICOM and a monitor(50). The packer apparatus pressurizes packer by using the fluid pressure and supplies the compressed air to a water-tightly inspection section of a conduit line. The pressure sensor senses the air pressure change of the water-tightly inspection section of the conduit line. The MICOM analyzes the air pressure change amount sensing signal outputted from the pressure sensor. The MICOM outputs the analyzed information in the monitor.