A steel strip with a multi-stage energy absorption mechanism and a monitoring system and method for monitoring the stress deformation of a yielding beam

CN116804376BActive Publication Date: 2026-06-23SHANDONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV OF SCI & TECH
Filing Date
2023-06-07
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In deep coal mining, existing steel belt support equipment has weak resistance to pressure, bending and deformation, and cannot effectively absorb the energy of the surrounding rock, resulting in roadway deformation and safety hazards. In addition, there is a lack of real-time monitoring and early warning mechanisms.

Method used

Design a steel strip with a multi-stage energy absorption mechanism, equipped with pressure and distance sensors. The steel strip's condition is monitored in real time through a steel strip stress and deformation monitoring system. Combined with pins, the compressive and shear resistance is enhanced, and an early warning prompt is provided through a display alarm.

Benefits of technology

It enables real-time monitoring and early warning of stress concentration areas in roadways, ensuring safe production, enhancing support strength and controllability, and is suitable for mines with rock bursts and dynamic hazards, thereby reducing production costs.

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Abstract

The application discloses a steel belt with a multistage energy absorption mechanism and a yielding beam stress deformation monitoring system and monitoring method thereof. The steel belt with a two-stage energy absorption mechanism comprises an upper layer steel belt and a lower layer steel belt connected with a pressure sensor through a steel column. The longitudinal section of the upper layer steel belt and the lower layer steel belt is in a trapezoidal shape, which comprises an inclined side part and a middle part. A tray is installed on the upper layer steel belt, and the geometric center position of the tray is provided with an anchor rod hole. The application can form a three-stage energy absorption steel belt through the cooperation of the steel belt bolt and the steel belt body, and the pressure sensor and the distance sensor can record the stress deformation condition of the steel belt in real time. The display alarm can give an early warning to the steel belt with excessive compression in the roadway, so as to prevent safety accidents. The system is used in cooperation with the anchor rod and cable, can monitor the stress deformation of the steel belt, make the form of the steel belt digital, and meet the development direction of the intelligent mine.
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