터널과지하공간 (Tunnel and Underground Space)
- 제2권1호
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- Pages.177-189
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- 1992
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- 1225-1275(pISSN)
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- 2287-1748(eISSN)
암반기계굴착공법의 적용연구
Application of TBM/TBE to Mechanical Excavation in Rock
초록
As tunnel becomes longer and larger, TBM has become one of the most popular methods of excavatio in rock. This paper describes the degree of operation the degree of availability and penetration rate of TBM and TBE applied in Namsan roadway tunnelling site. Net penetration rate was 1.62m/hr for TBM and 0.72m/hr for TBE. Net penetration rate showed no direct relation to daily advance or penetration time, but the lower bound of penetration rate could be obtained from the relation with daily advance. For both of TBM and TBE, the degree of operation and the degree of availability were 33.8% and 68.6% respectively. Life time of normal cutter was
키워드