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理论上的、传统的综采(综放)工作面,要求采区的上下顺槽要布置的平、直,从而保证采区的正常回采。目前,无论是采用走向长壁还是倾向长壁布置综采(综放)工作面,都会由于煤层的赋存不稳定,而致使采区的上下顺槽有拐弯情况。这样布置采区的最大优点是:①可使综采(综放)采法的使用条件更广泛,使采区少丢煤,提高回采率;②尽最大可能加大采区的回采率,减小了区间保护煤柱,提高采区的服务年限,相对减小了工作面搬家倒面的时间,从而间接地降低了吨煤成本……
Theoretically, the conventional fully mechanized coal mining face requires that the upper and lower grooves of the mining area should be arranged flat and straight so as to ensure the normal mining of the mining area. At present, no matter adopting the longwall or inclined longwall layout of fully mechanized (fully mechanized) caving face, instability of the coal seam will result in cornering of the mining area from top to bottom. The main advantages of such a layout of the mining area are: ① can make the use of fully mechanized mining (fully mechanized) mining conditions more widely used, so that less coal mining area, improve recovery rate; ② maximize mining area recovery rate, reduce Small interval protection of coal pillars to improve the service life of the mining area, relative to reduce face moving time, thus indirectly reducing the cost per ton of coal ... ...