Construction method of system for identifying water inrush of mine floor water source

The invention relates to the technical field of mine safety, and discloses a construction method of a system for identifying water inrush of a mine floor water source, which comprises the following steps: step 1, acquiring related data including eight influence factors including water-bearing stratum water pressure, water-bearing stratum thickness, water-resisting stratum thickness, fault density, fault fractal dimension value, permeability coefficient, unit water inflow and floor damage depth; step 2, performing kernel principal component analysis: performing identification and dimension reduction processing on all the obtained data; and step 3, constructing a BP neural network, continuously adjusting the weight, debugging to the training times, the hidden layer node number, the iteration times and the like with good data matching degree, and ensuring that the error is within a set range. The whale optimization algorithm is used to optimize the initial weight threshold value of the BP neural network, and the