三峡永久船闸混凝土施工温控技术

三峡永久船闸混凝土结构复杂，施工强度高，所处地区气候环境变化比较大。为适应工期要求，混凝土采用全年连续施工，因而温控技术要求比较高。为保证混凝土施工质量，减少裂缝的出现，施工过程中分不同季节、不同时段采取了相应的温控措施。取得了良好的效果。

Temperature control technology of concrete construction in the Three Gorges Permanent Ship Lock

The Three Gorges Permanent Ship Lock is complex in its structure and intensity in its construction, with a varying climate in the site. In order to meet the needs of construction progress, the concrete was continuously constructed in the whole year so that temperature control is strictly required. In order to guarantee the quality of concrete construction and to reduce concrete cracks, the different concrete temperature control measures were taken during concrete construction period in different seasons and different time intervals, which gained a good effectiveness.