关键词: 断层, 相似模拟, 支架压力, 上覆岩层, 裂隙带

Abstract: The simulating test, using a large ratio(one sixtieth), was made to study the fully mechanized height face on the background of geological conditions of Wangzhuang coal mine 8101 face. In order to study neighboring pressure and the variation law of roof strata, large mining height fully-mechanized faces were separately pushed towards the fault that have different tendencies. The result showed that, when working face from hanging wall was close to the fault, it firstly formed advanced horizontal fractures which pitched in the fault in top rocks. What’s more, the roof under the horizontal fracture shifted much more vertically. When working face from foot wall was close to the fault, the roof along the fault plane appeared to be sinking as a whole and the support pressure was higher. After it passed the fault, the large scope of overlying rocks in gob sank unevenly and the closer working face was, the more deflection was. Pushing the working face would cause the terraced development of fissure zone of overlying rock. When the face was pushed from the foot wall to the fault, the height and the speed of fissure zone’s development were both higher and faster than those when was pushed from the hanging wall. According to the supporter pressure’s survey, the area of pressure increasing in fault zones played an important guiding significance for the working face’s timbering and reinforce.