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

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

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: 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
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung: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 connected to the boring machine body 1A for cutting and boring the existing buried pipeline P1, and the preceding body 1B is constituted so as to move for the boring machine body 1A by following the bend of the existing pipeline P1.