Abstract
In order to obtain the fluid solid coupling heat transfer law of the roadway, the coupled heat transfer between rock and air is analyzed through Fluent, Steady-State Thermal and Static Structural module in ANSYS. The heat flux and thermal strain of rock and the influence of air which under different wind speed and inlet temperature are obtained. The heat flux in the rock is approximately uniformly distributed in the circular ring shape, and the distribution of the heat flux from high to low is as follows: the roadway wall > rock mass > air. The heat flux of the rock near the wall is greater than that in the far side wall. The maximum is located at the wall, and the value is 160 W/m2. The thermal strain of rock is greatly influenced by local heat source, and the maximum value is 5.1 × 10−5 m/m in of rock is greatly influenced by local heat source, and the maximum valin of rock is greatly influenced by local heat source, and the maximum val. Compared with the loader, the hydrothermal water which has greater influence on the temperature of rock and wind can be regarded as the focus on the control of heat damage.
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