【作者】 周淑春； 宋怀强； 易永胜； 吕恒林； 马英； 宋雷； 龙帮云；

【Author】 Zhou Shuchun1,Song Huaiqiang2,Yi Yongsheng3,Lü Henglin1,4,Ma Ying1,Song Lei1,Long Bangyun1(1 School of Mechanics and Civil Engineering,China University of Mining & Technology,Xuzhou 221116,China; 2 Shenhua Guohua Xuzhou Power,Xuzhou 221000,China;3 Xuzhou Institute of Architectural Design Co.,Xuzhou 221000,China;4 State Key Laboratory for Geomechanics and Deep Underground Engineering,Xuzhou 221008,China)

【机构】 中国矿业大学力学与建筑工程学院； 神华国华徐州发电有限公司； 徐州市建筑设计研究院有限公司； 深部岩土力学与地下工程国家重点实验室；

【摘要】 某火电厂卸煤沟在恶劣的工业腐蚀环境长期作用下,其钢筋混凝土材料、构件均已出现明显的破损劣化现象。在对其使用环境、劣化现状等综合分析的基础上,研究了受恶劣的工业腐蚀环境、特殊的工艺和力学环境长期耦合作用下钢筋混凝土结构的损伤劣化机理。并有针对性地提出了修复、加固补强和长期维护并重的加固设计原则,采用了修复、碳纤维布加固与聚合物砂浆面层维护相结合的治理措施,为这种恶劣环境下劣化后钢筋混凝土结构的修复、治理提供了依据和参考。更多还原

【Abstract】 Under long-term action of the aggressive industrial environment,deterioration phenomena had appeared on RC materials and members of the coal unloading chute in a thermal power plant.Based on comprehensive analysis of its aggressive service environment and damage situation,this paper studied the deterioration mechanisms of RC structure which affected by long-term coupling action of aggressive industrial environment and complex mechanical environment.The study believes that long-term coupling action of lower design & construction quality and aggressive service environment accelerate the deteriorate rate of RC structure.Also,the research points out that we should pay equal attention to restoration,strengthening and maintenance when curing the deteriorated RC structures,which provides a reference method for curing the deteriorated RC structures in aggressive service environment.更多还原