Prediction of Surface Subsidence Due to Mining

Abstract

Ground subsidence caused by mining is increasing day by day, and some enormous disasters have been brought. Some scholars have carried out some results by a single factor analysis, but did not consider the multi-working conditions, resulting in a certain deviation from the actual project. Accurate and effective prediction of subsidence caused by coal mining is an urgent problem to be solved. In this paper, the main factors affecting surface subsidence in mining area, which are coal seam thickness and mining depth, are studied by means of composite analysis method. At the same time, three-dimensional finite element method is employed to simulate different engineering conditions. According to the simulation maximum value settlements, fitting through MATLAB software, the corresponding predicted models are established. Comparing with the actual engineering survey data, it is proved that the settlement prediction curve is in good agreement with each other. This research has reference value for actual coal mine engineering and construction engineering.