In the process of coal mining, it is easy to cause geological disasters such as ground collapse, which is particularly
important for the evaluation and prediction of the risk of ground collapse in the mining area in order to reduce the losses
caused by ground collapse. Ground collapse is affected by geology, hydrology, weather and other factors, the paper puts
forward the risk evaluation model of ground collapse in coal mining area based on LTMS, takes 10 characteristics of pretreated
mining area collapse as LSTM model input, according to the input data quantity, selects the number of samples per
batch after experiments is 8, and selects Adam as the optimization function by SGD, RMSprop and Adam, and the number
of hidden layer nodes is set to 30. The LSTM model achieves optimal performance at dropout value 0.5. The output of the
model is divided into four levels of risk evaluation of the mining area, so as to construct the risk evaluation model of
ground collapse in the mining area based on LSTM. It provides a new feasible way to evaluate the risk of mining goaf.
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