(2) The first number indicates the mining level;
The second number represents the mining area, which is arranged in sequence from the wellbore to mine field boundary, and the odd numbers 1, 3 and 5 represent the east (south) wing; Even numbers 2, 4 and 6 represent the west (north) wing;
No.3 and No.4 represent working faces in the mining area, which are arranged from top to bottom in turn, and odd numbers 0 1, 03 and 05 represent working faces in the upper and lower Shandong (south) wings of the mining area; Even numbers 02, 04 and 06 represent the upper and lower Shanxi (north) wing working faces in the mining area;
The fifth number represents the number of layers in the artificial slicing face of thick coal seam, and 1, 2 and 3 represent the first, second and third slicing respectively; The number of the fifth single longwall face is 0.
According to the situation of this mine, the mining engineering scheme can adopt the scale of 1: 1000 or 1: 2000. The mining engineering plan shall include the following main contents:
1, technical boundary of mine field, safety pillar and other boundary lines, indicating the name and approval number.
2. Coal seams and roadways related to coal seam mining (the main roadways should indicate the name and the position of the working face at the end of the month, the inclined roadways should indicate the inclination and inclination, the intersection points of roadways, slope changes, roadways and other characteristic points, and the rail surface or floor elevation should be indicated every 50- 100mm on the map).
3, coal mining face and goaf, pay attention to the position of the working face at the end of the month, the average mining thickness, coal seam dip angle, coal mining method, mining year and small coal pillars in coal seam; The reason and quantity of coal loss should be indicated in the coal loss area; The cancellation area shall indicate the approval number and coal quantity.
4. Permanent traverse points and leveling points shall be marked with points and elevations, and temporary points shall be marked as required.
5. Borehole, exploration line, coal seam outcrop line, weathering zone, coal seam thinning area, pinch-out area, collapse column and igneous intrusion area, coal thickness point, coal sample point and measured main geological structure.
6, fire area, water area, coal and gas outburst area, quicksand area, etc. , should indicate the time of occurrence and other relevant information.
7. Mining engineering and geological conditions of adjacent mines outside mine field boundary 100m, and small coal mines and their mining scope within the mining field.
8. According to the drawing permission and actual needs, contours of coal seam floor, important industrial buildings on the ground, residential areas, railways, important highways, large rivers and lakes can also be drawn.
1, wellhead lifting mode and capacity.
2. Use red and blue arrows to indicate the airflow direction in and out of the shaft and main roadway respectively.
3, the name of the mining team (group) and monthly progress.
4, the coal mining method of coal mining face and the name of the machinery used.
5. Mining engineering and geological conditions of adjacent mines outside mine field boundary 100m.
6, comprehensive histogram of coal measures strata in mine field.
7. Schematic diagram of development mode.
8. Title bar and signature bar.
The comprehensive histogram of coal measures strata in the mine field and the schematic diagram of development mode can be placed in a suitable position according to the specific conditions of the drawings.
Ze: 10e? ; o？ 9? : imitation song _ GB 2312; MSO- Hans -font-family: imitation song _ GB 2312; Color: # 565455; Background: White'>8. According to drawing permission and actual needs, contours of coal floor, important industrial buildings on the ground, residential areas, railways, important highways, large rivers and lakes can also be drawn.