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http://dx.doi.org/10.7474/TUS.2017.27.4.185

Numerical Analysis for Shotcrete Lining at SCL Tunnel in NS2 Transmission Cable Tunnel Project in Singapore  

Kwang, Han Fook (Defense Science and Technology Agency (DSTA))
Kim, Young Geun (Geotechnical & Tunnelling Dept. Kunhwa Engineering & Consulting Co.,Ltd.)
Publication Information
Tunnel and Underground Space / v.27, no.4, 2017 , pp. 185-194 More about this Journal
Abstract
This technical paper is a study on the unique displacements of Shotcrete Lining at the mined tunnel during excavation period through deep consideration with real time data from monitoring instrumentations correlation with the numerical analysis to identify the rock stresses and the rock spring points at the working face of the Conventional tunnelling by the Drill and Blast, based on the geological face mapping results of the project NS2, Transmission cable tunnel project in Singapore. The created geometry of numerical model was prepared to the real mined tunnel construction site including, vertical shaft, construction adit, tunnel junction area, and 2 enlargement caverns. The convergence measurements by the monitoring instrumentation were performed during the tunnel excavation and shaft sinking construction stages to guarantee the safety of complicated underground structures.
Keywords
Shotcrete Lining mined tunnel; Numerical model; Monitoring instrumentation;
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