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Cracks are often found at lining concrete of flood discharging
tunnel during construction. Previous studies have shown that temperature stress
is the main cause leading to cracks during construction. The cooling pipes method
is one of the important measures to control temperature. The equivalent heat
conduction Finite Element Method (FEM), because of its simple, is usually applied
to simualte the temperature field. The FEM with cooling pipes which can simulate
the temperature field accurately has rarely been reported. For this reason,
the lining concrete of Xiluodu underground engineering flood discharging tunnel
Longluowei section is simulated by FEM with cooling pipes. Good simulated results
are obtained comparing with the experimental data and some very useful conclusions
can be applied for site analysis to prevent cracks.
