48 results about "Permeability tensor" patented technology

The invention relates to the technical field of mine safety engineering and hydrogeological information processing, and discloses a multi-scale coal seam water spatial variation analysis and main control factor identification system for group-mine combined mining, which comprises a multi-source spatio-temporal data benchmark unification and preprocessing module for generating a standardized data set; the macro-micro orthogonal collaborative dynamic permeability tensor field construction module is used for establishing a permeability tensor field; a non-Euclidean hydraulic distance calculation module based on Riemannian manifold calculates a manifold hydraulic distance; a variable-lag embedded convergence cross-mapping causal identification module calculates causal coupling strength; a causal topology feedback driving model correction module iteratively corrects the model to convergence according to the difference; and the spatial variation characteristic analysis and main control factor output module outputs a main control factor list. According to the method, a causal topology feedback-driven model self-correction closed loop is constructed, a causal intensity reverse constraint physical model obtained through convergence cross mapping is used, and the problems that a traditional physical model cannot respond to mining-induced fracture evolution in real time, and pure data mining lacks physical interpretability are solved.