Improved structure of disk of tunnel excavator of corresponding type to complex geology

摘要

The present invention is a noise, dust, ground caused by the conventional installation of the infrastructure, such as water and sewage, telecommunication lines, gas pipes, subways and rivers and embankments, high groundwater, soft ground, etc. This is an improved structure of disks mounted on the tip of tunnel excavators, such as semi-shields and shield machines, which are used effectively in areas where damage is likely to occur, such as sinking and traffic obstacles. The present invention relates to a disk improvement structure of a composite geologically-compatible tunnel excavator for the purpose of efficiently carrying out the excavation work by installing the cutting cutters at the same time so as to be selectively used in response to the change of the strata during the excavation work.