介绍了有限元热流耦合精细算法,并采用等效算法和精细法对某混凝土坝的几个浇筑块进行分析,并对比了它们的计算结果.对比结果表明,从宏观上考虑,等效算法基本能正确反应出混凝土温度和应力的变化规律,但不能精确模拟水管周围混凝土在早期易开裂的现象,而精细算法能弥补这一点.分析结果也为工程实践提供相应的参考. This paper introduces the finite element heat flow coupling fine algorithm, and uses the equivalent method and the fine method to analyze several pouring blocks of a concrete dam, and compares their calculation results.The comparison results show that from the macroscopic point of view, the basic equivalent algorithm Can accurately reflect the variation of concrete temperature and stress, but can not accurately simulate the early concrete cracking around the water pipe, and sophisticated algorithms can make up for this point.The results also provide the corresponding reference for engineering practice.