T/SXDZ 029-2022 煤矿必备图件绘制基本要求

T/SXDZ 029-2022 The basic requirements for the preparation of essential maps for coal mines include: (1) the layout of the map should be clear and understandable, with the scale suitable for the coal mining work; (2) the key geological features and mine hazards should be marked on the map, including key fault zones, fault belt zones, mine subsidence zones, water resources, and coal seam height; (3) the surface coal mining facilities and the layout of the mine working area should be clearly marked on the map; (4) the spatial location of the coal seam and its surrounding environment should be ac