Buckle type cable trench cover plate and design method thereof

By designing a snap-on cable trench cover made of ultra-high performance concrete, and using stiffening ribs and a slot structure, the problems of waterproofing, oil resistance, fire resistance, wind and sand protection, and stress resistance of the cable trench cover are solved, achieving lightweighting and improved durability, and improving construction and maintenance efficiency.

CN121923036APending Publication Date: 2026-04-24CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP +1
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Patent Information

Application Number
CN202512019321.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing cable trench covers cannot meet the requirements for waterproofing, oil resistance, fireproofing, wind and sand protection, corrosion resistance, and load-bearing capacity. They are also difficult to open frequently, heavy, and easily damaged.

Method used

Design a snap-on cable trench cover made of ultra-high performance concrete with a thickness of 20mm. It is equipped with front and rear transverse stiffening ribs and longitudinal stiffening ribs, cantilevered edges and a slot structure to achieve a closed space. The fit between the slot and the slot cover prevents water, oil and sand from entering and reduces the amount of steel reinforcement.

Benefits of technology

It achieves lightweighting, improved durability, waterproofing, oil resistance, fire resistance, and wind and sand protection, reduces material consumption, improves construction and maintenance efficiency, and avoids localized damage.

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Abstract

The invention relates to the technical field of power transformation engineering cable trenches, in particular to a buckle type cable trench cover plate and a design method thereof, and the trench cover plate comprises a top surface, a cantilever edge, a drip groove, a clamping groove, a clamping groove cover, stiffening ribs and steel bars. The novel ultrathin concrete buckle type cable trench cover plate finished product is directly and transversely lapped on the side wall of a cable trench, the top faces of the cover plates face upwards, the cover plates are spliced on the long sides in the cable trench direction, the clamping groove of one cover plate is lapped on the clamping groove of the other cover plate in a covering mode, and a whole is formed. And the clamping groove can play roles in water, oil, wind, sand and fire prevention. After the cover plate is integrally assembled, operation and maintenance personnel and robots can walk on the cover plate conveniently. The problem that the cable trench cover plate is difficult to open frequently on site is solved, the impact resistance and durability of the cable trench cover plate are improved, and local damage or cracks are avoided; the waterproof, oil-proof, fireproof, sand-proof and sand-proof problems of the cable trench are solved, the cable in the trench is effectively protected, and the cable trench has good economic, environmental and social benefits.
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