A transition structure design method and transition structure for dam corridor intersection section

By adopting an elliptical arc transition structure at the intersection of the dam corridor, the problems of stress concentration and inconvenient equipment passage in traditional design are solved, and a more efficient and safe cross-section design is achieved.

CN112127329BActive Publication Date: 2025-03-21YELLOW RIVER ENG CONSULTING CO LTD
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Patent Information

Application Number
CN202011122562.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-10-20
Publication Date
2025-03-21
Estimated Expiration
2040-10-20

AI Technical Summary

Technical Problem

There are problems of stress concentration and inconvenience in the design of intersection sections of traditional dam corridors, especially at sharp corners of the intersection.

Method used

The elliptical arc transition structure design is adopted, and the elliptical arc is tangent to the outer line of the main and secondary corridors, forming a smooth vertical curved surface and top curved surface, replacing sharp corners to form a transition structure.

Benefits of technology

The stress state of the dam corridor at the intersection section has been improved, and the passing efficiency and safety of the equipment at the intersection section has been increased.

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Abstract

The present invention discloses a transition structure design method and transition structure for a dam corridor intersection section, wherein the transition structure has a top curved surface, a vertical curved surface and a bottom plane. Compared with the prior art, the present invention forms a transition structure of a main corridor and a secondary corridor through a top curved surface, a vertical curved surface and a bottom plane, replaces sharp corners at the intersection of the dam corridor with a smooth curved surface, improves the stress state of the dam corridor at the intersection section, and increases the passing efficiency and safety of related equipment at the corridor intersection section.
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