한국암반공학회:학술대회논문집 (Proceedings of the Korean Society for Rock Mechanics Conference)

한국암반공학회 (Korean Society for Rock Mechanics and Rock Engineering)
권호 표지

대구경 Shield TBM의 암반층 굴착속도

Net Penetration Rate of a Large Diameter Shield TBM in Hard Rock

  • 박철환 (한국지질자원연구원 암반공학연구팀) ;
  • 송원경 (한국지질자원연구원 암반공학연구팀) ;
  • 신중호 (한국지질자원연구원 암반공학연구팀) ;
  • 천대성 (한국지질자원연구원 암반공학연구팀)
  • 발행 : 2001.10.01
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초록

In No. 1 tunnel for Kwnagju urban subway construction, net penetration rate of the shield TBM was analyzed. This tunnel of 540 m length is located in soil layers at starting and in hard rocks such as amphibolite and granitic gneiss at ending with 84 m length. The net penetration rate was dropped down to 2∼11 cm/hr in rock while 50∼80 cm/hr in soil. Theoretical penetration rate is analyzed in conditions of machine and rock in order to compare the actual net penetration rate. The relationships between net penetration rate and thrust force is also investigated in this report.

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