The paper analyzes the reasons and treatment difficulties for the cracks on the large piers of Beigu River super-large Bridge,points out some prevention measures,including the lowing of the original temperature of concrete,the reduction of the hydration heat and temperature differences between concrete interior and exterior parts,and proves by the practice that these measures have better social and economic experience.%对北古河特大桥大体积桥墩裂缝产生的原因及治理难点进行了分析,针对性地提出了降低混凝土初始温度、降低水化热热量、降低混凝土内外温差等防治措施,经实践证明,这些措施具有良好的社会经济效益。
展开▼
