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白龟山水库北干渠渠首闸建于1959年,为3孔5m×3.5m孤形闸门,控制最大泄量333m~3/s。自建成投入使用以来,由于结构形式先天不足,漏水一直比较严重。尽管1993年对该闸漏水及锈蚀问题进行了认真细致地处理,并全部更换了水封,但从以后的运行效果看,并没达到预期目的,问题依然存在。几年来,笔者经过对该闸结构情况仔细分析研究,发现了导致闸门漏水的诸多因素,并由此产生了处理该闸漏水问题的一些想法。
The first gate of the Beichuan trunk canal of Baiguishan Reservoir was built in 1959 as a 3-hole 5m × 3.5m solitary-shaped gate with the maximum discharge of 333m ~ 3 / s. Since its completion and put into use, due to structural deficiencies, leakage has been more serious. Despite the careful and meticulous handling of the water leakage and corrosion problems of the floodgate in 1993 and the complete replacement of the water seal, the operation effect from the moment it failed to achieve its intended purpose and the problem persisted. Over the past few years, the author carefully analyzed and studied the structure of the gate and found many factors that led to the gate leakage, resulting in some ideas for handling the gate leakage problem.