Daelim’s Singaporean Subway Construction Site Finishes Very Difficult Tunnel Construction
DATE 2018.06.21
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Daelim’s Singaporean Subway Construction Site Finishes Very Difficult Tunnel Construction
Site workers rejoicing over the tunnel penetration
The Singaporean Thomson Line T222 site, where the subway is built, successfully penetrated the tunnel — one of the processes requiring a high level of difficulty — on June 21. The project involves excavating a 2.4km tunnel using a large tunnel boring machine (TBM) under the currently operated subway line.
The tunnel is built with a shield TBM method installing concrete segment together
with ground boring using a large TBM.
The shortest distance between the newly excavated tunnel and the existing subway tunnel is just 1.8m, and a risky situation like the existing tunnel’s transformation or ground subsidence could occur in the construction process. The site technology team actually organized a taskforce team with the Overseas Civil Engineering Management Team. The construction has been carried out by identifying risks in advance and devising measures to cope with the risks. As a result, the tunnel was successfully penetrated safely without any accident.
