水工混凝土抗冲蚀防护研究进展

水工建筑结构所处环境恶劣复杂,其过流面混凝土常受到高速挟沙石水流的冲刷磨蚀以及反复冻融.从冲蚀破坏工程案例、机理、防护措施等方面系统地对水工建筑物冲蚀问题的研究和实践进行了调研和分析,结果表明:水流中的介质可分为悬移质和推移质,对建筑物混凝土表面破坏机理不同,可以针对不同的损伤程度和环境在破坏部位使用护面材料或抗冲耐磨...

Research progress on erosion protection of hydraulic concrete

The hydraulic construction structure is located in a harsh and complex environment,and the concrete on the overflow surface is often subjected to the erosion and repeated freeze-thaw caused by the high speed sand-bearing water flow.From erosion damage project cases,mechanism and protective measures systematically erosion problems in the research and practice on the hydraulic structures has carried on the investigation and analysis,the results show that the flow of the medium can be divided into suspended load and bed load,the failure mechanism of concrete building surface is different,can according to different damage degree and the environment in the use of protective material damage parts or impact abrasion resistance for good repairing concrete measures such as strengthening,can achieve better repair effect,in response to the erosion damage of hydraulic concrete problems to provide the reference.