关键词: 特厚煤层, 综放面, 两柱掩护式, 放顶煤支架, 四柱掩护式, 支架选型

Abstract: In order to solve the problems of slow moving speed, unbalanced force between front and rear pillars, and poor adaptability to electro-hydraulic control system in the process of using ZF10000/23/37 four-pillar support and shield caving support in 4107 fully mechanized coal face, the characteristics of two-pillar shield caving hydraulic support are studied, and according to coal seam geology in mine. Under the condition and mining technology, ZFY12000/23/40D two-pillar shielded low-level caving support is selected in 4108 fully mechanized caving face. The adaptability of two-pillar caving support in 4108 fully mechanized caving face is better than that of four-pillar caving support in terms of working face moving time, caving time, resource recovery rate, support safety valve opening rate, support overhaul and support sheet side condition.