摘要
综采工作面受地质条件影响,里外段出现30°夹角,回采过程中扇形调向推进;工作面的扇形回采,是在工作面回采过程中调向推进的一种方法。介绍了扇形回采的方案、各个阶段、控制要点,并总结了调向回采中应该注意的问题。
Under the influence of geological condition,a 30 degree angle emerges between the inside and outside sections of fully mechanized working face.The fan-shaped direction-change propulsion is adopted.The paper introduces the fan-shaped mining schemes and the keys of every phase.Some important problems during the direction-change mining are also summarized.
出处
《山西煤炭》
2010年第9期62-63,共2页
Shanxi Coal
关键词
30°夹角
扇形回采
调向
30 degree angle
fan-shaped mining
direction change
