平煤四矿23160工作面开采煤层深度已经超过800m，属于典型的深井开采，开采工作面回采巷道破坏严重修复困难，严重影响矿井的安全正常生产。因此，进行23160煤层回采工作面顺槽支护方案研究对于提高矿井经济效益和安全生产具有重要的研究意义和应用价值。 针对平煤四矿23160运输顺槽破坏变形情况，在分析矿井地质采矿条件、巷道围岩条件的基础上，通过现场和试验室试验，应用理论计算分析，结合数值模拟计算分析，完成了平煤四矿23160工作面运输顺槽的支护方案设计。 通过对平煤四矿23160工作面巷道围岩岩性实验室测试分析，给出以粉砂质泥岩为主的围岩坚硬性系数在3~6之间，属于中硬岩层，矿井水文地质条件属于简单类型。在分析巷道破坏程度、特征及类型的基础上，应用现场测试方法结合数值模拟计算方法，分析了巷道断面形式，表明在该矿的地质条件下，断面形状为直径800mm的圆尖矩形巷道减缓了应力集中系数，有利于深井开采的围岩变形控制。应用理论分析，结合数值模拟方法，确定了23160运输顺槽的支护方案：正常段采用锚网支护，断面形状选择为圆尖矩形巷道，锚杆间排距800×1000mm，锚杆规格MSGLW-400/M24-22×2500mm高强锚杆，顶板布置4根锚杆，高帮侧布置4根锚杆，低帮侧布置3根锚杆，顶板中部、两帮中部及圆弧角处各布置1根6500mm锚索；围岩破碎段采用直墙半圆拱断面锚网支护和加棚支护。通过方案的现场应用和观测表明，支护效果得到了明显的改善，巷道变形量控制在合理范围内，月掘进速度提升了25％，最终工期缩短了36天；在掘进的1220m的23160运输顺槽中减少了锚杆用量的22.3％，锚索用量增加了8.1％，节约了人工成本，综合成本减少了8.9％。研究成果对于平煤四矿己16.17煤层的安全开采具有应用推广价值。

The mining depth of 23160 working face in Pingmei No. 4 Coal Mine has exceeded 800m, which belongs to typical deep mining. The damage of mining roadway in mining face is difficult to repair, which seriously affects the safety and normal production of the mine. Therefore, it is of great research significance and application value to study the support scheme along the trough in 23160 coal seam mining face for improving the economic benefit and safety production of the mine. Aiming at the failure and deformation of 23160 conveyance chute in Pingmei No. 4 Coal Mine, based on the analysis of mine geological mining conditions and roadway surrounding rock conditions, through field and laboratory tests, theoretical calculation and analysis, combined with numerical simulation calculation and analysis, the support scheme design of 23160 conveyance chute in Pingmei No. 4 Coal Mine was completed. Based on the laboratory test and analysis of surrounding rock lithology in 23160 working face of Pingmei No. 4 Coal Mine, the hardness coefficient of surrounding rock mainly composed of silty mudstone is between 3 and 6, which belongs to medium-hard rock strata, and the mine hydrogeological conditions belong to a simple type. Based on the analysis of the degree, characteristics and types of roadway failure, the roadway section form is analyzed by field test method combined with numerical simulation calculation method. It is shown that under the geological conditions of the mine, the circular rectangular roadway with 800 mm cross-section shape reduces the stress concentration factor and is beneficial to the control of surrounding rock deformation in deep mining. Based on theoretical analysis and numerical simulation method, the supporting scheme of 23160 transport channel is determined: bolt mesh support is adopted in normal section, the shape of section is circular rectangular roadway, the row spacing between bolts is 800 *1000mm, the specifications of bolts are MSGLW-400/M24-22 *2500mm high-strength bolts, four bolts are arranged in the roof, four in the high side, three in the low side and three in the middle of the middle of the roof and two sides. A 6500 mm anchor cable is arranged at the part and arc corner, and the support of straight wall and semi-circular arch section and roof is adopted in the fractured section of surrounding rock. The field application and observation of the scheme show that the supporting effect has been obviously improved. The roadway deformation is controlled within a reasonable range, the monthly driving speed has been increased by 25%, and the final construction period has been shortened by 36 days; the amount of bolt used has been reduced by 22.3% in the 1200m transport channel, and the amount of anchor cable has increased by 8.1%, which saves the labor cost and reduces the comprehensive cost by 8.9%. The research results have application and popularization value for the safe mining of 16.17 coal seam in Pingmei No. 4 Coal Mine.