DOI: 10.11799/ce201606002
Design and application of strip mining under building in Donghuantuo coal mine
LIU Zai-xiang
Abstract：Through analysis of the situation and seam stability in Donghuantuo mine No?1 south mining area, combining with the mining situation under building and current domestic mining technology level, a strip mining scheme is designed with 60m mining width, and 70m retaining width, and the surface subsidence and deformation movement are predicted. FLAC3D finite difference method is applied for numerical simulation, and the results show that, surface displacement and subsidence is small using the proposed scheme, which ensures the destruction degree of the surface buildings within grade I. Engineering practice has proved accuracy of the simulation. To some extent, the design can extend the mine service life, reduce coal production costs and improve the efficiency of coal production.
Keywords：strip mining under buildingscheme designsurface subsidencenumerical simulationfield observation
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 4-7 )