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1.问题的提出陆浑灌区系河南省百万亩以上的大型灌区,设计灌溉面积8.95万hm~2,受益人口110万人。灌区工程1970年动工兴建,经过30多年的运行,主体工程的输、泻、排基本畅通,发挥了很大的效益。但是,水工混凝土结构建筑物的老化、破损的速度和程度远远超出了工程设计人员的预计,一直没有引起人们的高度关注。经调查,许多水闸、渡槽、涵洞、陡坡、跌水、桥梁、护坡等建筑物运行一段时间后,出现结构破损,致使安全性降
1. Proposed Issues Luhun Irrigation District is a large-scale irrigation area of more than 1 million mu in Henan Province. The designed irrigation area is 89,500 hm 2, benefiting 1.1 million people. Irrigation project started construction in 1970, after more than 30 years of operation, the main project of the transport, diarrhea, drainage basically smooth, played a great benefit. However, the speed and degree of aging and damage of hydraulic concrete structures are far beyond the expectations of engineering designers and have not drawn the attention of people. After investigation, many sluices, aqueducts, culverts, steep slopes, falls, bridges, slope protection and other buildings run for a period of time, the resulting structural damage, resulting in safety