一、概述混凝土是抗拉强度低于抗压强度的材料,往往由于降温与荷载联合作用时产生的拉应力而开裂,因此,对隧洞进行弹性温度应力计算,就成了设计中必不可少的重要部分。对这个问题,我国以往的文献,如《水工混凝土结构的温度应力与温度控制》中给出了温度为时 I. Overview Concrete is a material with tensile strength lower than compressive strength, which often cracks due to the tensile stress generated when the cooling and load are combined. Therefore, calculating the elastic temperature stress of the tunnel becomes indispensable in the design important part. On this issue, our previous literature, such as “hydraulic concrete structure temperature stress and temperature control” gives the temperature is