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一、矿区概况 矿区主开采煤层为石炭二迭系山西统大煤,煤层倾角一般为20°左右,煤厚平均7～8米。在大煤底板以下约90米,还有石炭系太原群下夹煤组,在二矿以北为可采煤层。其中下夹上煤厚0.7～1.0米;下夹下煤厚1.7～2.8米。整个煤田走向近似南北,倾向近似西东的单斜构造长条带状煤田。煤田走向长约30公里,倾斜长3～6公里,面积约120平方公里。煤田地质储量约16亿吨(计算到-1000米),其中现设计范围内地质储量约5.5亿吨。
I. Overview of mining area The main mining area in the mining area is the coal-bearing system of Shanxi Tongda Coal Mine. The dip of coal seam is generally about 20 ° with an average thickness of 7-8 meters. About 90 meters below the floor of the big coal, there is a coal-bearing group under the Taiyuan Group of Carboniferous, and coal is recoverable to the north of No.2 Mine. Which under the folder of coal thickness of 0.7 to 1.0 m; under the folder of coal thickness of 1.7 to 2.8 meters. The entire coalfield is approximately to the north and south, inclined to monoclinic long strip coal fields in the west. Coalfield to about 30 km long, inclined 3 to 6 km long, an area of about 120 square kilometers. Coal reserves of about 1.6 billion tons of geological reserves (calculated to -1000 meters), of which the design of geological reserves is about 550 million tons.