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This article aims to make a preliminary design for the tunnel of Suzhou Metro Line 3 crossing the Jinji Lake. It describes the key factors to consider. First, select the appropriate route and the model of the shield machine for the specific geological conditions, and then analyze the tunnel dimension, concrete segmental linin and so on. Calculate t...
Contexts in source publication
Context 1
... large number of programs were compared and analyzed from the aspects of method adaptability, construction risk, cost and construction period. The final plan for route selection is shown in figures 1 and 2. As illustrated in figure 2, the tunnel crossing the Jinji Lake mainly passes through 3-2 silty clay layer, 4-2 silt layer and 5 sand layer. ...
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This paper is based on the case of the earth pressure balance (EPB) shield tunnelling project of the new Metro Line 2 undercrossing the existing Metro Line 1 in the soft soil urban area of Hangzhou. Because the EPB shield must break through a plain concrete wall before undercrossing the existing tunnels, the pipe roof prereinforcement was adopted t...
