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一、水工有压隧洞温度应力B..伏尔可夫计算法 在水利水电工程设计中,经常遇到水工有压隧洞的温度应力计算。隧洞衬砌升温时产生压应力,降温时产生拉应力。混凝土是抗拉强度远低于抗压强度的材料,常难抵抗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,便构成了设计中必不可少的重要部分。
First, hydraulic pressure tunnel pressure B .. Volkoff method In water conservancy and hydropower engineering design, often encountered hydraulic pressure tunnel temperature stress calculation. When lining the tunnel, it will generate compressive stress when it raises temperature and produce tensile stress when cooling. Concrete is a material whose tensile strength is much lower than the compressive strength, and it is often difficult to resist the tensile stress caused by the combined effect of cooling and loading. Therefore, the elastic temperature stress calculation of the tunnel, it constitutes an essential part of the design.