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许疃矿井设计生产能力,在矿区总体设计时确定为150万t/a。在工程总承包投标设计阶段,我们在180,150,120万t/a和90万t/a的四个设计生产能力方案中经初步比较,筛选出150万t/a和120万t/a两方案,并进行详细比较论证后,最终确定许疃矿井设计生产能力为120万t/a。本文简要介绍该设计生产能力的确定与论证。一、矿井概况许疃井田位于淮北矿区,走向长9～12km,倾斜宽3～7km,面积约55km~2。井田地面标高约+25.5m。新生界松散层厚292.8～368.1m,煤系地层为石炭二叠系。井田呈一单斜构造,地层倾角8°～25°,一般为8°～16°。沿走向次级褶曲发育,并伴
Xu 疃 mine design and production capacity, the overall design of the mine identified as 1.5 million t / a. In the project general contracting bidding design stage, we initially compared two design capacity plans of 180,150,120 t / a and 900,000 t / a to screen two plans of 1.5 million t / a and 1.2 million t / a After a detailed comparison and demonstration, the final design Xu mine capacity of 1200000 t / a. This article briefly describes the design and production capacity to determine and demonstrate. First, the mine profile Xu Yang minefield is located in Huaibei mining area, to the long 9 ~ 12km, width of 3 ~ 7km wide, an area of about 55km ~ 2. Ida ground elevation of about +25.5 m. The Cenozoic loose layer thickness of 292.8 ~ 368.1m, coal-bearing strata of Carboniferous Permian. Minefield was a monoclinic structure, dip angle of 8 ° ~ 25 °, usually 8 ° ~ 16 °. Along the secondary fold development, and accompanied