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无煤柱沿空留巷技术能够能够明显提升采区的资源回采率,是煤矿开采技术未来重要发展的方向之一。本文首先探讨了无煤柱沿空留巷围岩结构,阐述了其围岩变形机理,再此基础上提出了无煤柱沿空留巷顶板控制的关键技术,旨在为同行提供参考。
Pillarless roadway retaining technology can significantly improve the recovery rate of resources mining area, is one of the future development of coal mining technology direction. In this paper, the structure of surrounding rock along gob-side entry retaining roadway without pillars was discussed, and the deformation mechanism of surrounding rock was expounded. Based on the above, the key technologies of gob-side entry retaining roof control with pillars were put forward.