The invention discloses a joint waterproof structure for hydroelectric
engineering, and relates to the technical field of joint
waterproofing, the joint waterproof structure comprises a
hydraulic engineering dam, a lifting mechanism is mounted at the upper end of the
cut-off position of the
hydraulic engineering dam, the larger
water flow is, the stronger the
impact effect on the inclined surface of a trapezoidal block is, and when the inclined surface of the trapezoidal block is impacted, the higher the
water flow is. The trapezoid blocks can adaptively extrude the rubber strips along the strip-shaped grooves, the rubber strips can be gradually pressed on the inner sides of the side edge inner buckle plates under
extrusion of the trapezoid blocks, the sealing effect is enhanced through
water flow impact force, meanwhile, water flow can also
impact the side edge inner buckle plates, and the sealing effect is improved. When water flow is generated, the side edge inner buckle plate can also extrude the rubber strip in the forward direction, so that the reinforced sealing effect of self-adaption water flow impact force is further improved, after the outer portion of the rubber strip is abraded, the rubber strip can stretch out in a self-adaption mode under forward and reverse
impact extrusion so as to achieve the self-adaption abrasion
compensation effect, and for a large water conservancy project gate, the sealing effect is good. Manual participation is not needed, the adaptability is high, and the sealing effect is good.