【摘要】 水平分段综放开采技术是目前急倾斜特厚煤层有效开采手段之一，随着设备及技术水平的不断提高，工作面分段高度及产能不断提升，智能化水平也不断提高.系统总结了急倾斜水平分段综放开采的历史进程，并以新疆能源乌东煤矿为例，介绍了近直立(倾角较大的急倾斜煤层)水平分段综放开采技术最新进展.研究了近直立水平分段综放开采应力分布特征及演化规律，建立了工作面顶底板及煤层群岩柱破断模型；探讨了近直立水平分段工作面合理巷道布置位置，保障了顶煤回收率最大化和经济合理化双重目标；推导了顶、底板侧倾斜边界影响下的顶煤放出体和煤岩分界面理论方程，开发了端头充分和“多轮放煤、末轮逆序”放煤工艺，极大减少了急倾斜水平分段全综放工作面煤损；开发了高识别精度和自清洁防尘摄像头，建立了图像识别智能放煤系统与电液控信号通信架构，实现了水平分段综放工作面智能放煤控制.研究结果对提升水平分段综放工作面顶煤回收率和围岩稳定性具有科学指导意义.更多还原

【Abstract】 Horizontal sublevel top coal caving mining technology(HSTCC) is currently one of the effective mining methods for steeply inclined extra-thick coal seams. With the continuous improvement of equipment and technical levels, the sublevel height and production capacity of the panel are constantly increasing, and the level of intelligence is also continuously improving. This paper systematically summarized the historical process of HSTCC, and took the Wudong Coal Mine of Xinjiang Energy as an example to introduce the latest progress of HSTCC with the near-vertical seam, which belongs the relatively large dip angle in steeply inclined seams. The stress distribution characteristics and evolution laws of HSTCC were investigated, and the fracture models of the roof and floor of the panel and the rock pillars of the coal seam group were established. The reasonable roadway layout position was discussed, ensuring the dual goals of maximizing the top coal recovery ratio and economic rationalization.The theoretical equations of the drawing body and the top coal boundary under the influence of the inclination boundary of the roof and floor were derived. The end-full and multi-round sublevel reverse sequence caving methods have been developed, which greatly reduced the coal loss of the whole HSTCC panel. High recognition accuracy and self-cleaning dust-proof cameras have been developed, and an image recognition intelligent caving system and electro-hydraulic control signal communication architecture have been established, achieving intelligent caving control in HSTCC panels. The research results have scientific guiding significance for improving the top coal recovery and the stability of surrounding rock in HSTCC panels.更多还原