TY - GEN
T1 - Effect of slurry clogging phenomena on the face stability of slurry-shield tunnels
AU - Lee, In Mo
AU - Lee, Sam
AU - Choi, Ki Hoon
AU - Reddi, Lakshmi N.
PY - 2006
Y1 - 2006
N2 - In this paper, the slurry penetration was assessed by soil-filter clogging theory to understand the rheological characteristics. The coefficient of fine particle deposition, represented as an indicator of slurry clogging during tunnel construction, was estimated through several series ofmodeling experiments. Experimental results showed that the ratio of infiltration velocity to the coefficient of particle deposition was reciprocally proportional to the penetration distance and proportional to the stability of tunnel face. It was also found that the critical d 10 which needs the special additive was 0.75 mm. In addition, considering the advance rate of tunnelling in stability analyses, the study was further to find the relationship between the tunnel advance rate and the stability of working face due to slurry penetration.
AB - In this paper, the slurry penetration was assessed by soil-filter clogging theory to understand the rheological characteristics. The coefficient of fine particle deposition, represented as an indicator of slurry clogging during tunnel construction, was estimated through several series ofmodeling experiments. Experimental results showed that the ratio of infiltration velocity to the coefficient of particle deposition was reciprocally proportional to the penetration distance and proportional to the stability of tunnel face. It was also found that the critical d 10 which needs the special additive was 0.75 mm. In addition, considering the advance rate of tunnelling in stability analyses, the study was further to find the relationship between the tunnel advance rate and the stability of working face due to slurry penetration.
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M3 - Conference contribution
AN - SCOPUS:84863018509
SN - 0415391245
SN - 9780415391245
T3 - Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE
SP - 245
EP - 251
BT - Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 5th International Conference of TC28 of the ISSMGE
T2 - 5th International Conference of TC28 of the International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE
Y2 - 15 June 2005 through 17 June 2005
ER -