具有刚度匹配特性的岩体扰动应力监测装置与方法
By designing a rock mass disturbance stress monitoring device with stiffness matching characteristics, and using a flexible air film and strain rose combined with a temperature sensor, the problem of strain gauge stiffness mismatch was solved, and accurate and stable monitoring of rock disturbance stress was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH BEIJING
- Filing Date
- 2026-01-28
- Publication Date
- 2026-07-17
AI Technical Summary
In existing rock stress monitoring methods, the mismatch between strain gauges and rock stiffness leads to reduced measurement accuracy, and fiber Bragg gratings are expensive and have low cost-effectiveness.
A rock mass disturbance stress monitoring device with stiffness matching characteristics is designed. It adopts a flexible gas film and strain rose combined with a temperature sensor. The flexible medium is expanded and extruded to the rock surface. Combined with a temperature pre-compensation mechanism, the accuracy and stability of the monitoring data are ensured.
It achieves effective transmission and long-term stable monitoring of rock disturbance stress, avoids measurement errors caused by stiffness mismatch, eliminates the influence of temperature changes, and improves monitoring accuracy and cost-effectiveness.
Smart Images
Figure CN122016104B_ABST