高寒地区气温年变化所致胸墙裂缝的分析及处理  

Analysis and treatment of breast-wall cracks due to yearly variation of temperature in high-cold zone

作　　者：刘海祥[1] 柯敏勇[1] 叶小强[1] 鄢建华[2] 

机构地区：[1]南京水利科学研究院材料结构研究所,南京210024 [2]中国水电顾问集团中南勘测设计研究院,长沙410014

出　　处：《西北水电》2008年第6期27-29,32,共4页Northwest Hydropower

摘　　要：某高寒地区水闸,气温年变化较大,温度下降时,胸墙受闸墩强约束,在各种荷载作用下,产生了纵横裂缝;裂缝影响结构及材料的耐久性;制定了针对高寒及炎热交替条件下混凝土裂缝的处理方案。In a high - cold zone, the yearly variation of temperature is great. As the temperature drops down, horizontal and vertical cracks appear in the breast - wall of a deep - water sluice under strong restriction by gate piers and action of various loads, and threaten the durability of structures and materials. Measures are worked out to treat concrete cracks at alternation of high - cold and severe hot weather conditions.

关 键 词：大温差 强约束 防渗 裂缝 

分 类 号：TV698.231[水利工程—水利水电工程]