【摘要】 分析了巷道围岩散热的非稳态导热、巷道形状不规则、介质非均质和各向异性等特性,研究了用有限单元法求解巷道围岩温度场的原理、边界条件以及处理非均质和各向异性介质的方法。提出了手工与计算机相结合的单元划分方法。依此原理编制了计算机程序,并进行了实例计算,验证了方法的正确性,分析了温度场时空变化规律。更多还原

【Abstract】 According to the characters of temperature field, for example, unsteady, anomaly form of laneway, inhomogeneous rock and anisotropy, the theory to calculate temperature field by finite element method is researched. How to deal with the boundary condition and anisotropy is analysed. A method for partition of elements automatically by computer is put forward. as an example, two real temperature are calculated by computer program, which can validate the correctness of the method in this paper. According to the result of calculation, the basic law of temperature changed with time and space is analysed.更多还原