分析了宁夏汉延渠斗口闸孔出流存在的主要问题。
The main existing problem of discharge at the lateral gate of Hanyan canal in Ningxia is analyzed.
此外，为了防止深孔闸墩部位的裂缝发生，设计采用对闸墩施加曲线形预应力锚索以消除或减小拉应力。
Moreover, curve prestressed anchorage cables are applied to eliminate or minish the tensile stress to prevent the cracks appearing on the deep orifice gate blocks.
马迹塘水电站为我国首座贯流式电站，大坝23孔泄洪闸没有设置检修门，工作弧门常年挡水而不能做启闭检修调试，出现门体锈蚀、止水撕裂、支铰发卡等严重危及泄洪闸安全运行的现象。
Majitang Hydropower Station is the first tubular hydropower station in China, there are no emergency gate set ting in23spillway gates, so those working radial gates can not be tested and repaired.
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