A water conservancy dam crack rapid repair and reinforcement device

CN122344871APending Publication Date: 2026-07-07XIANGJIA ENVIRONMENTAL TECH (JIANGSU) CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: XIANGJIA ENVIRONMENTAL TECH (JIANGSU) CO LTD
Filing Date: 2026-05-21
Publication Date: 2026-07-07

AI Technical Summary

Technical Problem

Existing hydraulic dam crack repair equipment is unstable in water-adjacent and underwater environments, and cannot effectively seal off water. External water can easily penetrate and dilute the repair slurry, resulting in insufficient bonding strength. Furthermore, the repair material is unevenly distributed, making it difficult to thoroughly clean accumulated water and impurities, thus affecting the repair quality and long-term effectiveness.

Method used

It adopts a vacuum positioning suction cup and flexible sealing combination structure, combined with adjustable sealing components and mobile drive structure to form a stable closed space. It is equipped with a deep cleaning and material conveying combination to achieve precise sealing, cleaning and uniform slurry delivery inside the crack. The addition of a rotating disturbance structure ensures that the slurry is filled densely.

Benefits of technology

It enables rapid and stable crack repair under wet or underwater conditions, improves the bonding strength between the repair layer and the dam body and the uniformity of the grout, ensures the full compatibility and filling density of the repair material, solves the problems of slippage, leakage and uneven grout in underwater repair, and improves the repair quality and long-term effectiveness.

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Figure CN122344871A_ABST

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Abstract

This invention relates to the field of hydraulic dam engineering technology, specifically disclosing a rapid repair and reinforcement device for hydraulic dam cracks. The device includes a repair frame, with positioning frames integrally formed at the bottom of each of the four sides, and vacuum positioning suction cups fixed to the bottom of each of the four positioning frames. Through the combination of the overall frame and the vacuum adsorption and flexible sealing structure, it can quickly conform to the outer surface of the dam with varying flatness. Negative pressure adsorption ensures stable positioning of the entire device, effectively preventing equipment slippage and displacement during repair operations. The flexible sealing components can enclose an independent, sealed space, isolating seepage and water flow interference from the external water-adjacent area, thus preventing continuous erosion of the repair area by water from the source of the operation. Compared to traditional open-air, unprotected repair methods, this device effectively avoids water dilution of the repair materials, ensures the stability of the curing environment of the repair materials, and effectively improves the adhesion and bonding strength between the repair layer and the dam base surface.

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