BORING MACHINE FOR UPDATING EXISTING BURIED PIPELINE, MILLING CUTTER USED FOR IT, AND BORING METHOD IN UPDATING EXISTING BURIED PIPELINE

• Main Authors: SASAKI MASAHIKO, SAGARA HIROSHI, YOKOSHIMA YASUHIRO, SENDA SHOHEI, SUGIURA TAKAFUMI, FUJIO YOSHINARI, ARIGA TERUO, TAKAHASHI ISAMU, SHIYOUGU SUMIO, MAEZONO IKUYA, NAKAJIMA TOSHIMI, HAYASHI KOICHI
• Format: Patent
• Language: English
• Published: 19.09.2000
• Edition: 7
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

PROBLEM TO BE SOLVED: To perform boring smoothly and surely without resulting in boring failure. SOLUTION: A preceding body 1B that advances the inside of an existing pipeline P1 while being pushed back by the boring force of a boring machine body 1A in front of the boring machine body 1A is connect...