用理论分析和数值计算方法研究了综采放顶煤面沿空巷道的围岩稳定性，分析了影响掘巷位置的几个因素——老顶岩层垮落特征、直接顶和煤体变形特点及采空侧支承压力分布规律，提出了沿空巷道的合理位置。研究成果应用于兴隆庄煤矿5318综采放顶煤面沿空巷道锚杆支护，并取得了成功。

针对综放沿空掘巷围岩的特点, 提出了综放沿空掘巷围岩大、小结构的稳定性原理, 为锚杆支护的成功应用提供了理论依据. 对老顶中的弧三角形关键块的受力特点、在掘巷期间和回采影响期间的稳定情况以及对其下的沿空掘巷的影响进行了分析. 探讨了影响围岩小结构稳定性的主要因素; 应用巷道锚杆支护围岩强度强化理论, 研究了提高锚杆预紧力和支护强度对保持围岩小结构稳定性的重要意义.

以某矿回采巷道位于上部开采煤层形成煤柱的技术条件为例,从围岩应力控制的角度出发,提出了在被保护巷道一侧掘进巷道,将要保护巷道周围较大的围岩应力转移到新开掘巷道附近,使要保护巷道处于良好的应力环境,从而有效保护巷道的新技术,并利用数值模拟的方法对主要技术参数进行了分析确定。

The range of plastic zone and fractured zone in high stress roadways was wide; surrounding rock was destroyed badly and the support cost was very high thus made mining extremely difficult. It’s the key problem and research emphasis in surrounding rock controlling. Surrounding rock stress was transferred from shallow to deep, which is the basic technical approach to controlling the deformation of surrounding rock, and keeping roadway in well maintenance condition. Aimed at mechanics mechanism of high stress roadways, the law of stress transfer in mining influence space is studied by use of Green function and formula, and put forward stress transfer theory. According to different surrounding rock conditions and controlling desire, five new technologies on remedying high stress roadways are put forward through theoretic study, mechanics calculation and engineering practice, which contains driving roadway in roof, loose blasting and driving roadway in floor, upward mining, loose blasting and grouting reinforcement in floor, driving advanced bore hole or destressing notch in roadway head. Research and application indicates, stress transfer theory and technology offers a new theoretical platform and effective technical approaches, and can be used in remedying high stress roadway in mine or support in other underground project.

This paper introduced a real time monitor technique for supports in fully mechanized coal faces and surrounding rock of entries based on CAN BUS. It includes support working features monitor and roof separation real time monitor of entries. The system can realize real data display and alarm in the locality, and communicate data by CAN BUS. It guarantees realization of high production and high efficiency safety mining for modern mine.