A multi-sensor fusion oil pillow type borehole stress measurement device

By introducing a multi-sensor fusion design into the oil-pillar type borehole stress gauge, including setting pressure plate assemblies and strain rosettes in the vertical and horizontal directions, the problem that traditional devices can only monitor vertical stress is solved, and accurate monitoring of multi-directional stress and installation reliability are achieved.

CN224532713UActive Publication Date: 2026-07-21SHANDONG KEYUE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG KEYUE TECH CO LTD
Filing Date
2025-09-17
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional oil-pillar type borehole stress gauges can only sense stress changes in a single vertical direction and cannot monitor horizontal pressure conditions. Furthermore, the uncertain installation posture affects the monitoring quality and accuracy.

Method used

A multi-sensor fusion-based oil-pillar type borehole stress measurement device is designed. By setting pressure plate assemblies in the vertical and horizontal directions of the oil bladder, and installing strain gauges and tilt sensors on the pressure plate assemblies, the device can monitor stress in multiple directions. The installation quality and accuracy of the device are ensured by a linkage structure.

Benefits of technology

This enables multi-directional monitoring of borehole stress, improving monitoring quality and accuracy, and ensuring the reliability of the device installation and the accuracy of measurements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of oil pillow type borehole stress measuring devices of multi-sensor fusion in the technical field of mine borehole stress monitoring, including oil bladder, first pressing plate component, second pressing plate component, third pressing plate component, fourth pressing plate component and plastic package cover, the oil bladder is hollow flat cavity, two ends are set exhaust component and oil inlet pipe respectively, first pressing plate component and second pressing plate component are set in the upper and lower ends of oil bladder, the third pressing plate component and fourth pressing plate component are set in the left and right ends of oil bladder, the two ends of first pressing plate component and second pressing plate component are connected with third pressing plate component and fourth pressing plate component respectively through linkage structure, and the plastic package cover is covered in the outside of each pressing plate component.The oil pillow type borehole stress measuring device of utility model patent design can realize the monitoring of borehole multidirectional compression, and improve monitoring quality.
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