The surface subsidence analysis method has different accuracy and applicability to different geological conditions.In order to study the accuracy and applicability of the surface subsidence analysis method to the goaf of sandstone-type thin-bedded shallow coal mine,taking the goaf of J inlong Coal Mine in Pingxiang City,Jiangxi Province as an example,the probability integration method,the surface displacement monitoring summary method and the numerical simulation method was used to compare the accuracy of the subsidence analysis.The results showed that for the surface subsidence analysis of the goaf of sandstone thin-bedded shallow coal mines,the surface displacement monitoring summary method had the highest accuracy and good applicability,but the time and labor costs were large.The numerical simulation method had the second highest accuracy and good applicability.The probability integration method had low accuracy and poor applicability.Under the condition of comprehensive trade-off accuracy and cost,the numerical simulation method is the best choice.
维普
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