刘老涧新闸混凝土力学特性与耐久性分析OA

To reveal the durability degradation mode of existing hydraulic structures in typical river and lake regulation and storage environments,on-site sampling was carried out at five key sections of the Liulaojian New Sluice.Indicators including compressive strength,carbonation depth,chloride ion diffusion coefficient,pore structure,impermeability,and frost resistance were systematically tested,and the material state of the structure after many years of construction was comprehensively evaluated.The relevant research results not only clarify the key degradation mechanisms of aging hydraulic structures under complex hydrological and climatic conditions,but also provide engineering basis for the durability assessment,operation and maintenance,and reinforcement design of similar sluices and river-lake regulation structures.