Pressure-supported structures and their construction methods

By combining the design of the support structure and the connection structure, and utilizing the deformation coordination of the through unit, the problem of stable support of the pressure support structure under large deformation of the surrounding rock was solved, and the effective reinforcement and deformation adaptation of the surrounding rock were achieved.

CN121556889BActive Publication Date: 2026-05-05GUONENG ECONOMIC & TECH RES INST CO LTD
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Patent Information

Application Number
CN202610085374.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-22
Publication Date
2026-05-05
Estimated Expiration
2046-01-22

AI Technical Summary

Technical Problem

Existing pressure-relief support structures have weak deformation capacity under the pressure of surrounding rock, are easily damaged, and cannot effectively adapt to the large deformation requirements of tunnel surrounding rock.

Method used

The design employs a combination of support and connection structures. The support structure provides rigid support, while the connection structure provides a gradually decreasing to constant support force through deformation. The through unit adapts to the amount of deformation and enhances its deformation capacity through the cooperation of adapters and sliding parts.

Benefits of technology

It improves the deformation capacity of the pressure support structure, enabling it to provide stable support under the pressure of the surrounding rock, avoid structural damage, and enhance the reinforcement effect on the surrounding rock.

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Abstract

This invention relates to the field of tunnel support engineering technology, and discloses a pressure-relief support structure and its construction method. The pressure-relief support structure includes a support structure and several connecting structures. The support structure includes a first component, several second components, and a third component. The first and third components are arranged opposite each other, and all the second components are arranged between the first and third components. The connecting structures are arranged between the first and second components, between the second and third components, or between two adjacent second components. Each connecting structure has deformation to provide a gradually decreasing to constant support force. Each component includes a support unit and several through units. The support unit is adapted to connect with the connecting structures. Each through unit includes a through member, a sliding member, and a transition member. The through member passes through the support unit, the sliding member is arranged at the end of the through member away from the support unit, and both ends of the transition member are connected to the sliding member and the support unit. This invention is beneficial for improving the deformation capacity of the pressure-relief support structure.
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