一种多向让压的扩大头锚杆及其让压控制方法
By designing a multi-directional pressure-yielding enlarged head anchor bolt, combined with shape memory alloy and pressure monitoring device, intelligent and automated control of surrounding rock stress is achieved. This solves the problems of insufficient pull-out bearing capacity and high-temperature fatigue of existing pressure-yielding anchor bolts under complex surrounding rock conditions, and improves anchoring reliability and support accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN UNIV OF SCI & TECH SANYA RES INST
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pressure relief anchors are difficult to adapt to complex and variable surrounding rock pressure, leading to pressure relief failure, and they also have problems such as high temperature fatigue and limited bearing capacity.
The multi-directional pressure relief enlarged head anchor bolt, combined with two independent shape memory alloy temperature control pressure relief systems in the axial and circumferential directions, integrates the enlarged anchor head and pressure monitoring device to achieve intelligent and automated bidirectional pressure relief control.
It improves the pull-out bearing capacity and anchoring reliability of the anchor bolts, adapts to complex surrounding rock conditions, avoids high-temperature fatigue, and achieves coordinated bearing between the surrounding rock and the anchor bolts, ensuring the safety and accuracy of the support.
Smart Images
Figure CN122236491B_ABST