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高德八坑是阜新较大生产坑口之一,它主要开采孙家湾本层,倾角25°左右,层厚在该区内近26公尺,煤层柱状图如图1。井田利用斜井开拓,系统如图2。研究时期开采到第七水平,该水平的巷道布置如图3所示。井田沿走向长610公尺,深部到—70公尺,全井田沿走向划分为五个采区,其中东部二个,西部三个;按后退式回采。回采时将煤层分为10个分层,其中分成二组(8—10层,1—7层)回采时8—10层一组超前于1—7层的一组。回采时使用的采掘方法有:打眼放炮,联合采煤机二种。配合此采用了采充平行作业与采充顺序作业的作业方法。
The high-pit eight pit is one of the larger production pitheads in Fuxin. It mainly develops the layer of Sunjiawan with an inclination of about 25 ° and the thickness of the layer is nearly 26 meters in the area. The bargraph of the coal seam is shown in Figure 1. Ida open-pit utilization, the system shown in Figure 2. During the research period, the mining to the seventh level, the level of the roadway layout shown in Figure 3. Ida along the direction of 610 meters long, deep to -70 meters, the entire field along the strike is divided into five mining areas, including two eastern and western three; according to the back-style mining. When mining, the coal seam is divided into 10 layers, which are divided into two groups (8-10 layers, 1-7 layers) 8-10 layers of a group ahead of a group of 1-7 layers. Mining methods used in mining are: shot blasting, coal mining machine two. In line with this adopted mining parallel operation and mining sequence operations homework method.