摘要
论述了有效发现水工混凝土裂缝的主要方法,说明参数量化是水工混凝土裂缝防控的重点。基于水工混凝土构件裂缝检测方法研究历程,详细分析了人工探视法、破损检测法及无损检测法的检测机理及特点,表明现阶段仅超声红外热像综合法能有效发现水工混凝土构件的微裂纹,但其在量化微裂纹参数方面的能力有待进一步提高。最后总结出"微裂纹的发现与量化"将成为今后研究的热点,"通过混凝土裂缝模拟体辅助研究"将成为主要研究方式。
The effective detection of micro cracks in hydraulic concrete and quantization of their parameters are the focus of the prevention and control of cracks in hydraulic concrete,which is discussed at the beginning of the paper.Based on the research progress of crack detection method for hydraulic concrete structure,the detection mechanism and feature of manual detection method,destructive detection method,and non-destructive testing method are analyzed in detail.From the analysis,it turns out that ultrasonic infrared thermography comprehensive method is the only one able to effectively detect micro cracks at present stage.But in the aspect of quantization of micro crack parameters,further research is needed for ultrasonic infrared thermography comprehensive method.At last,it is summed up that the detection and quantization of micro cracks shall be the future research focus.In addition,using the simulation of concrete cracks as study assistance will become main research method.
出处
《无损检测》
2016年第7期75-81,共7页
Nondestructive Testing
基金
国家自然科学基金重大科研仪器研制资助项目(51527811)
关键词
微裂纹
量化
裂缝检测方法
裂缝模拟体
Micro crack
Quantization
Crack detection method
Simulation of the concrete crack
