Abrasion detecting apparatus detecting abrasion of component of cutter head and tunnel boring machine including abrasion detecting apparatus

Abstract

An abrasion detecting apparatus is configured to detect an abrasion of a component of a cutter head of a tunnel boring machine configured to excavate a ground using a cutter to bore a tunnel, the abrasion detecting apparatus including: an abrasion detection probe located rearward of a front end of the cutter by a certain distance and located forward or rearward of a front end of a component, whose abrasion needs to be detected, of the cutter head by a certain distance, the abrasion detection probe including an abrasion detecting portion at a front end portion thereof, the abrasion detecting portion abrading away by contact with the ground to be excavated; and a detecting device configured to detect an abrasion of the abrasion detecting portion.

Dependencies are inferred from the claim text.