一种高应力破碎岩体错峰补强支护方法
By deploying anchor mesh and slotted anchor bolts in mine roadways, monitoring anchor bolt pull-out force in real time, and increasing anchor bolts to provide staggered reinforcement, the problem of roadway rock fracturing and collapse under high stress was solved, thereby improving the stability and safety of the roadways.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DEEP MINING LABORATORY BRANCH OF SHANDONG GOLD MINING TECHNOLOGY CO LTD
- Filing Date
- 2022-08-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing mine roadway support technologies are prone to rock fragmentation and collapse under high stress, and fluctuations in the pull-out force of anchor bolt support systems may lead to collapse risks, making it impossible to guarantee the long-term stability of the roadway.
After the tunnel is excavated, anchor mesh is laid and pipe joint anchors are distributed. The changes in anchor pull-out force are monitored in real time. Based on the change characteristics, pipe joint anchors are added one day before the anchoring force is at its lowest, forming a staggered reinforcement support method to enhance the overall support capacity of the support system.
By using a staggered reinforcement method to optimize the anchor bolt support system, the risk of roadway collapse due to reduced anchoring force was avoided, the stability and safety of the roadway were improved, and the support cost was reduced.
Smart Images
Figure CN115263387B_ABST