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山浪煤矿主采煤层为5#煤,煤层厚度平均为4.7 m,煤层储存稳定,坡度平均为10°左右,煤质较软,直接顶板为0.8~2 m的深灰色泥岩,老顶为2.0~5.0灰岩和风化岩组成,直接底为1.0~6.0泥岩。由于埋藏浅,盖山厚度70~200 m,平均100 m左右属三软煤层,因此选择合理的开采工艺,采取有效的顶板支护方式,科学合理地分析顶板变化规律,综合分析和评价,采取有效措施,实现安全开采,有着重要的意义。
The main coal seam of Shaolang Mine is 5 # coal with an average coal seam thickness of 4.7 m. The coal seam is stable in storage with an average gradient of about 10 °. The coal quality is relatively soft and the direct roof is a dark gray mudstone with a depth of 0.8 to 2 m. 2.0 ~ 5.0 limestone and weathering rock composition, the direct bottom is 1.0 ~ 6.0 mudstone. Due to the shallow burial, the thickness of Gaishan is 70 ~ 200 m with an average of about 100 m. It is a soft coal seam with a thickness of about 100 m. Therefore, a reasonable mining technique is adopted, an effective method of roof support is adopted, the law of roof variation is analyzed scientifically and rationally, comprehensively analyzed and evaluated, Effective measures to achieve safe mining, has important significance.