摘 要 红柳矿井是宁东煤田鸳鸯湖矿区的骨干矿井，井田构造发育，含煤地层为侏罗系中统延安组，可采煤层14层。顶部2号主采煤层厚度平均 6.1m，倾角一般为6°～18°，埋深160m～1100m。我国开采高度超过5m的大采高工作面不多，且煤层倾角一般小于5°，在红柳矿井倾角6°～18°煤层采用6.0m大采高实现“一井一面”8.0Mt/a，尚无成熟经验。开展缓倾斜煤层6m大采高工作面的合理开采参数、设备选型、支架的防倒防滑和煤帮控制等关键问题研究，十分必要，具有重要的工程实践意义。 本论文通过地质条件分析和煤岩物理力学参数测定，采用数值模拟、理论计算、工程类比与现场实践等方法，确定了红柳煤矿6m大采高工作面的合理面长为300m，合理走向长度为2000m，合理的采煤工艺为端部斜切进刀单向割煤；确定了首采面的主要设备选型为MG900/2210-GWD滚筒采煤机、SGZ1250/3×855重型刮板输送机、SZZ1350/525型转载机、ZY10000/28/62D液压支架及相应的排头架和过渡架。提出了液压支架的防倒防滑控制技术：①采用液压支架设置底座调架千斤顶，设置双向可调的顶梁和掩护梁活动侧板，提高支架防滑防倒调控能力；②采用工作面上下端头4架排头架组成移架“锚固站”，提高支架抗倾倒能力；③采用由两端头通过5架过渡支架加大到大采高的过渡方式，解决两端头稳定性难题；④采用下端头运输顺槽超前上端头回风顺槽18m的工作面伪斜布置，解决支架及刮板输送机的下滑问题。提出了防治煤壁片帮技术措施：①液压支架设置二级护帮板，护帮高度2m；②割煤后及时带压移架；③提高正规循环率，加快推进速度。 红柳矿井采用了本研究方案和技术措施，开展了1121综采工作面施工与生产，工作面顶板和煤帮控制良好，最高日产量27200t，平均月产量63万t，直接工效达238t/工•日。实践表明，开采技术工艺及设备选型合理，实现了6m大采高安全高效生产。

ABSTRACT Hong Liu Coal Mine is located in Yuanyanghu mining areas of Ningdong, which is structure development.The coal-bearing strata belong to the Jurassic system of Yan'an formation, the coal layer has 14 layers. The average thickness of the top 2nd main coal seam is 6.1miles, the dip is generally 6° to 18°, and the depth is between 160miles and 1100miles. China's large mining height faces whose mining height are more than 5miles,and the seam inclination is generally less than 5°. Under the conditions of the inclination of 6° ~ 18°of the 2nd seam of the Hongliu mine mining,they used the 6.0miles large mining high achieving a well side of 8.0Mt/a.It needs research and design innovation to face mining technology, and service for mine safety efficient production. This paper is on the base of geology condition analysis and the detection of coal physical and mechanical parameters, and by the means of numerical simulation, theoretical calculation, engineering analogy and field practice, has ascertained that the rational length of large caving-height of 6m of Hongliu coal is 300m, strike length is 2000m, mining craft is unidirectional cutting technology at the end. And the selection of main equipment of the first coalface: MG900/2210-GWD shearer, heavy SGZ1250/3×855 scraper conveyor, SZZ1350/525 loader, ZY10000/28/62D hydraulic support and top and transition frame. Anti-skid Control technique for hydraulic support is proposed in this paper: ① to improve anti-skid capability of support, setting the scheduling hoisting jack under the hydraulic support, and setting bilaterally adjustable canopy and shield-beam with board.②To improve efficiency, 4 bent frames at top and end face is made to anchorage station.③To solve the stability problem of ends, the transition form of 5 end bent frames rising to 6m is applied. ④ The false dip layout of up end conveyor gateway advancing down end ventilation entry with 18m is applied. The measures of controlling rib spalling is applied: ① hydraulic support with face-sprag, and the height is 2m. ②Advancing support with the roof pressure after caving.③support in time and accelerating mining speed. Hongliu coal mine adopted the design scheme and technical measures, carrying out the 1121 fully mechanized coal face construction and production.Working face roof got good control,the highest daily output was 27200t, the average monthly production was 630000t,and the direct work efficiency is 238t/d.Practice shows that mining technology and equipment type selection is good, realizing the 6m high safety and high efficient production.