Method and device for automatically identifying grouting influence zone based on spatial temperature gradient evolution
By setting temperature monitoring holes in the rock mass and constructing a three-dimensional voxel grid, the grouting influence zone is identified using the temperature gradient modulus. This solves the problems of strong subjectivity and poor accuracy in the identification of the grouting influence zone in the existing technology, and realizes automatic and accurate identification of the grouting influence zone.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CCTEG COAL MINING RES INST
- Filing Date
- 2026-02-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for objectively and automatically identifying grouting-affected zones in complex underground rock masses. In particular, manual interpretation is highly subjective under conditions of multiple measuring points and multiple time series, making it difficult to apply in engineering.
By setting grouting holes and temperature monitoring holes in the rock mass, collecting initial reference temperature and real-time temperature, constructing a three-dimensional voxel grid, using temperature gradient modulus to determine effective nodes, calculating the equivalent diffusion volume and maximum diffusion radius of the grouting slurry, and realizing automatic identification of the grouting influence zone.
It achieves objective, rapid and repeatable identification of the boundary of the grouting-affected zone, reduces environmental temperature interference, reduces subjective human judgment, improves identification accuracy, and is applicable to complex media and irregular diffusion patterns.
Smart Images
Figure CN122409735A_ABST