在大体积混凝土中,温度应力及温度控制具有重要意义。这主要是由于两方面的原因。首先,在施工中混凝土常常出现温度裂缝,影响到结构的整体性和耐久性。其次,在运转过程中,温度变化对结构的应力状态具有显著的影响是不容忽视的。因此在本工程施工前对这一问题相当重视,在组织方案设计和日后的施工中都采取了很多措施;下面就裂缝产生的原因和相应的预防控制措施进行阐述。 In mass concrete, temperature stress and temperature control are of great significance. This is mainly due to two reasons. First of all, concrete often cracks in the construction, affecting the integrity and durability of the structure. Second, during operation, the temperature changes have a significant impact on the stress state of the structure can not be ignored. Therefore, before the construction of this project considerable attention to this issue, in the organization of program design and construction in the future have taken many measures; the following reasons for the cracks and the corresponding prevention and control measures are described.