复杂条件下大采高综采回采巷道支护技术是矿井安全生产中所面临的技术难题之一。合理的巷道支护是保证矿井正常生产的必要条件。在大采高综放开采的条件下，回采巷道的变形与失稳更为严重，因此回采巷道支护技术非常值得研究。论文以羊场湾煤矿大采高综采回采巷道为工程背景，采用理论分析、计算机数值模拟、现场实测等综合研究方法，对大采高综采回采巷道合理支护形式与参数及矿压显现规律进行了研究。 本研究在综合现场回采巷道变形调查的基础上，论述了影响巷道围岩稳定性的几个主要因素。通过围岩变形、表面位移变化特征等分析，揭示了巷道围岩断裂、破坏、失稳的特征及内在规律。采用有限差分计算软件，研究了回采巷道支护前及支护后围岩应力、围岩的变形破坏特征以及巷道围岩塑性变形区域的演化规律，尝试了从围岩(浅部)运动与矿山压力分布规律现场综合监测研究入手，优化支护参数，综合分析与预测，治理羊场湾矿压问题以及在开采扰动区内煤柱稳定性问题，试图达到良好的安全与技术经济效果，使回采巷道支护问题得到较好解决。 羊场湾煤矿煤体松软、破碎，维护困难，采动压力大，经常发生片帮、冒（漏）顶现象。通过对羊场湾煤矿大采高综采回采巷道进行了矿压显现规律和顶板破坏力学分析，总结出复杂条件下大采高回采巷道变形特征，最终确定了大采高回采巷道的支护形式与参数，提出了具体的控制措施，强化现场工程实践和技术管理，确保了回采巷道的安全与稳定。本研究结果对大采高回采巷道稳定性控制及支护方案有借鉴意义。

Gateway supporting technology about fully mechanized coal-mining by high height is nowadays one of difficult problems in colliery safety production under complicate conditions. Reasonable supporting technology is necessary condition for collieries regular operations. With the specific conditions, deformation and unstability of gateway are much worsen being well valuable for researches about techniques of gateway supporting. Based on gateway in Yangchangwan colliery as background, all of supporting styles, parameters of gateway and mechanism of underground behavior are absolutely studied by compound manners which conclude theoretical analysis and numerical simulation, in-situ monitoring on field or something. The article gets several key factors influencing the stability of rock mass in gateway on the basis of investigations about gateway deformations extensively. According to analyses in characteristics of gateway deformations and superficial movement, crucial natures of process, “damage-destabilization-fracture” of rock mass in gateways, are revealed. Moreover, numerical method, finite difference, is largely useful for stress and strain properties during dealing of gateway-supporting, and then is also easily gotten rules of evolution of plastic zones here. In-situ monitoring on field is attempt to apply for study about distributions of underground pressure and strata movement, and supporting parameters attain optimal demand. Certainly hope to manage problems in Yangchangwan colliery, like underground and stability of coal pillars in distributed zones and solve the core problem for more safer and sound effects of safety and economics. Because of coal nature like weak, broken and hard for maintance, giant abutment pressure or something, slide and caving of coal are usually happened during mining. By mechanism of underground pressure behavior and mechanics analysis of roof, deform characteristics of gateways in fully mechanized mining of high height under complicate conditions are arisen for assuring supporting styles and parameters of gateways, finally specific measurements are offered, besides engineering practice and technical management are enforced, and safety and stability of mining entries are ensured. The article has a great significance for similar engineering condition, stable control and gateway supporting in fully mechanized mining by high height.