三亚市赤田水库溢洪道金属结构改造方案探讨

On the Renovation of Metal Structures in Spillway of Chitian Reservoir

赤田水库溢洪道存在诸多不安全因素。经对结构复核计算,工作闸门在高水位下主框架受力大,运行不安全;启闭设备陈旧,启门力不足;电气设备老化;无检修闸门。通过启闭设备更新,电气控制设备升级改造,闸门结构补强,增设检修闸门等措施,用有限资金获得理想的加固效果,水库得以安全正常运行。

The safety of the spillway in Chitian Reservoir is evaluated with structural checking calculations and various safety risks are found. The operation of the working gate under high water level is unsafe because of the large force ap- plied on the main frames. The hoist equipment is obsolete and of insufficient uplift force. The electrical devices are also aging. And the emergency gate is absent. Thus, renovation schemes are proposed, including the upgrading of the hoist equipment, the renovation of the electrical control devices, the reinforcement of the gate structure, and the construction of the emergency gate. Practice shows that the renovation is satisfactory and the reservoir operates safely.