我国为原煤生产大国，其中煤炭主要分布在中部、西部，由于地质条件不同，其巷道支护方式也不尽相同。石窑店煤矿位于神木市东北部，其可采煤层为2-2，3-2，5-2上和5-2煤层，在主水平5-2煤层下部布置首采工作面，辅助水平布置在3-2煤层下部，采用上行方式开采3-2、2-2煤层，其中开采3-2煤层时回采巷道两帮不支护两帮依然保持完好，目前矿井正在开采2-2煤层，为了确定2-2煤层首采工作面合理的支护方案，本文通过现场调研、实验室试验、理论分析、相似模拟和数值模拟等方法，提出112201工作面巷道的支护方案，末期现场测试巷道的围岩变形情况。本文主要研究以下内容： （1）通过实地调研、采集和分析地质资料，了解2-2煤层具体赋存特征、回采巷道断面特征，并通过实验室测试煤层、顶板、底板的物理力学参数。 （2）通过相似模拟实验，分析巷道在受到垂直压力和水平压力后其顶底板移近量和两帮移近量，以及巷道和岩层的宏观变形破坏特征。 （3）根据松动圈测试和钻孔窥视结果，结合巷道实际情况，测试并分析112201工作面顶板和巷道两帮围岩松动圈范围，确定巷道两帮应该加强支护。 （4）通过数值模拟结果看出，巷道在支护前围岩位移量相对较大，并出现较大变形、垮落的现象；巷道顶板和两帮支护后其顶底板和两帮的移近量明显变小，并未出现较大变形，说明巷道采用两帮支护方案合理。 （5）基于上述理论分析与现场人员反应，分析影响巷道支护的具体因素，利用数值模拟方法对支护方案效果进行比较，最后确定了回采巷道支护方案：顶板采用左旋无纵筋锚杆+钢筋金属网；两帮采用左旋无纵筋锚杆+塑料网的支护方式；并对现场施工效果进行监测和分析，得出此支护方案设计合理，效果显著。 本文的研究既一定程度上解决了112201工作面巷道支护问题，又为11盘区的支护提供了较为准确的支护方案，通过理论分析、数值模拟、相似模拟确定112201工作面巷道两帮加强支护才能保证巷道的整体稳定性，为矿井后续高产高效生产有着重要意义，同时也为类似地质条件下的巷道支护提供了一个成功的工程类比方案。

China's coal production for the country, of which coal is mainly distributed in the central and western, due to different geological conditions, the roadway support methods are not the same. The stone kiln coal mine is located in the northeast of Shenmu County, and its recoverable coal seam is 2-2, 3-2, 5-2 and 5-2 coal seam. The first mining face is arranged at the lower level of the main level 5-2, Arranged in the 3-2 coal seam in the lower part of the mine production in order to ensure that a working face can be put into production, the first mining face layout in the 5-2 coal seam, with the rational use of mine resources, the use of upstream mining 3-2,2 -2 coal seam, which mining 3-2 coal seam mining roadway two do not support the two groups are still intact, the mine is mining 2-2 coal seam, in order to determine the 2-2 coal seam mining face reasonable support program, this article through Site investigation, laboratory test, theoretical analysis, similar simulation and numerical simulation. The support scheme of 112201 working face roadway is put forward, and the deformation of roadway surrounding rock is observed in the later stage. This article mainly studies the following: (1) Through the field investigation, geological data collection, analysis, to understand the specific characteristics of 2-2 coal seam, mining roadway section characteristics, and through the laboratory test of coal and roof and floor physical and mechanical parameters. (2) Through the similar simulation experiment, the top and bottom of the roadway are analyzed by vertical pressure and horizontal pressure, and the deformation and damage characteristics of roadway and rock strata are analyzed. (3) According to the results of loosening test and drilling peephole, combined with the actual situation of roadway, test and analyze 112201 working surface roof and roadway two groups of rock loose circle range, to determine the two corridors should strengthen the support. (4) Through the numerical simulation results, the displacement of the surrounding rock in the roadway is relatively large, and the deformation and collapse are larger. The top and bottom of the roadway and the two plates are supported. Near the amount of significantly smaller, did not appear a large deformation, indicating that the roadway with two support programs reasonable. (5) Based on the above theoretical analysis and field personnel response, analyze the specific factors that affect the roadway support, use the numerical simulation method to compare the effect of the support scheme, and finally determine the mining roadway support scheme: the roof adopts the left- Reinforced steel mesh; two with the use of left-handed longitudinal reinforcement bolts + plastic mesh support; and on-site construction results to monitor and analyze, the support program design is reasonable, the effect is significant. The research of this paper not only solves the problem of roadway support in 112201 working face, but also provides a more accurate support scheme for 11-pillar support. Through theoretical analysis, numerical simulation and similar simulation, the 112201 working face Strengthen the support to ensure the overall stability of the roadway for the follow-up high-yielding production is of great significance, but also for similar geological conditions mine roadway support to provide a successful engineering analogy program.