Water conservancy project dam seepage-proofing and water-stopping structure: Fid-Bau Portal

Water conservancy project dam seepage-proofing and water-stopping structure

SUN LI / HE JING / DU SI / SHAO YURAN / YANG BING / WANG HAO

The invention discloses a water conservancy project dam seepage-proofing and water-stopping structure, and relates to the technical field of water conservancy projects. An ice discharging mechanism arranged on the device can rise when a rear ice layer impacts and extrudes a trapezoidal pumice slope, and two threaded cylinders rotate through an assembly to drive a screw to descend to drive a gate plate to descend to be lower than the horizontal plane; a thick ice layer can pass through the gate along with water flow, automatic ice discharging is achieved in this way, workers do not need to observe the movement track of the ice layer all the time, the service life of the device is prolonged, meanwhile, the sealing mechanism of the device seals gaps between the gate plates through the air bags, and the anti-seepage and water stopping effects are achieved; according to the device, the air bag can be shrunk in the descending process of the gate plate, friction between the air bag and the inner wall of the plate groove in the descending process of the U-shaped plate is avoided, after the gate plate descends, air is injected into the air bag again to enable the air bag to bulge to seal the gap between the gate plate and the plate groove, the service life of the air bag can be prolonged in the mode, and then the seepage-proofing and water-stopping effects are better.

本发明公开了一种水利工程堤坝防渗止水结构，涉及水利工程技术领域，本装置设置的排冰机构在后冰层撞击挤压梯形浮石斜面时会使其上升，通过组件让两个螺纹筒旋转驱动螺杆下降带动闸门板下降使其低于水平面，厚冰层即可随着水流通过闸门，此方式实现自动排冰，不需要工作人员时刻观察冰层运动轨迹，延长了装置使用寿命，同时本装置的密封机构利用气囊对闸门板之间的缝隙进行密封，起到防渗止水效果，本装置的气囊在闸门板下降过程中可以缩小，避免凵形板下降过程中气囊与板槽内壁摩擦，而当闸门板下降完成后，对气囊重新注气使其鼓起对闸门板与板槽缝隙之间进行密封，这种方式可以延长气囊的使用寿命，进而防渗止水效果更好。

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