Plunge pool bottom plate joint water stop structure and construction method

Abstract

The invention provides a plunge pool bottom plate joint water stop structure and a construction method. The plunge pool bottom plate joint water stop structure comprises a joint water stop structure body, and the joint water stop structure body comprises a water stop belt assembly and a grouting assembly; the water stop belt assembly is arranged at the joint of a pre-poured block and a post-poured block; and the grouting assembly is arranged above the water stop belt assembly and comprises a closable reserved groove, one side of the reserved groove is attached to the joint, the upper end of the reserved groove communicates with an embedded pipe, and a grouting pipe and a slurry return pipe are alternately installed on the embedded pipe. According to the plunge pool bottom plate joint water stop structure and the construction method, the plunge pool bottom plate joint water stop structure is reliable in water stop, simple in structure and convenient to construct, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering seam seals, in particular to a joint water seal structure and construction method for a pad pond bottom plate. Background technique [0002] Flood discharge deflection and energy dissipation pad ponds have a high flow velocity and complex flow patterns. If the water sealing effect on the concrete joint surface of the bottom slab of the pond is not good or fails, the water flow will directly drill into the bottom slab of the pond along the seam surface, and the bottom slab will bear a large load. Uplift pressure and pulsating pressure may cause severe damage to the bottom plate of the pad pond; at the same time, for the pad pond with drainage facilities under the bottom plate, if the water stop effect is not good or fails, the pressure of the drainage system will increase or even get out of control. endanger the safety of other buildings. Therefore, the joint w...

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Problems solved by technology

[0004] However, this water-stop structure also has serious deficiencies, as follows: First, the upper copper water-stop is the same as the conventional copper water-stop, and there is a high possibility of construction defects, especially at the water-stop due to large aggregate or Concentrated bleeding will lead to insufficient sealing, which will greatly affect the water-stop effect; second, the existence of the upper layer of copper water-stop will inevitably affect the quality of concrete construction vibration below, and there will inevitably be insufficient sealing due to large aggregates or concentrated bleeding. Construction defects such as in place, and then affect the water-stop effect; third, the structure is complex, construction is inconvenient, affecting construction efficiency; fourth, the water-stop effect inspection is complicated and difficult to achieve, and it is impossible to check the water-stop effect of the lower layer of copper

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