Overburden water inrush early warning method based on optical fiber sensing and topological analysis
By acquiring overburden strain data and lithological stratification data, constructing a topology map and updating it periodically, the problems of accuracy and timeliness of overburden water inrush early warning in coal mining were solved, and real-time monitoring and safety early warning of overburden fracture network were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUATING COAL GRP CO LTD
- Filing Date
- 2026-05-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot accurately and timely warn of overburden water inrush accidents during coal mining, resulting in a high false alarm rate and delayed warnings, which makes it difficult to meet safety requirements.
By acquiring overburden strain data and lithological stratification data, fracture nodes and their attributes in the overburden are identified, a topology map is constructed to characterize the connectivity of the fracture field, and the topology map is periodically updated based on the working face advance as the trigger condition. Early warning information is automatically generated based on the set of topology feature parameters.
Real-time monitoring of the overlying rock fracture network has been achieved, improving the accuracy and timeliness of water inrush early warning, reducing human error, and ensuring the timeliness of safety warnings.
Smart Images
Figure CN122407286A_ABST