- 권한신청
- P-ISSN2233-8292
- E-ISSN2287-4747
- KCI
ISSN : 2233-8292
해저 터널 굴진자료 분석을 통한 FPI와 비에너지의 경험식 제시
Suggestion of empirical formula between FPI and specific energy through analysis of subsea tunnel excavation data
배두산 (한국전력공사)
조선아 (한전전력연구원)
류희환 (한국전력공사)
Abstract
The construction of subsea tunnel differs from that of inland tunnel because of high water pressure due to sea water level and difficulties to reinforce the ground under construction. Therefore, it is very important to prevent trouble in advance when the subsea tunnel is constructed. In this paper, we established lots of databases about characteristics of geological and mechanical parameters on the construction of subsea tunnel using micro slurry TBM which depth is about 60 m. The correlation analysis is conducted to confirm the effect of thrust, torque and RPM among the excavation database on the net penetration rate. Also, An empirical formula is suggested to predict the net penetration rate through the correlation analysis between FPI (Field Penetration Index) and specific energy from the subsea tunnel excavation database.
- keywords
- 해저 터널, 슬러리 TBM, 막장압, 비에너지, 굴착 변수, Subsea tunnel, Slurry TBM, Face pressure, Specific energy, Excavation parameter
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