地下煤矿软岩巷道稳定性控制技术依然是制约高产高效矿井建设与安全生产难题。以石沟驿煤矿S136工作面回采巷道支护工程为背景，针对煤层处于弱含水的软岩条件下出现的大断面巷道围岩稳定性控制问题运用多种手段进行综合研究，最终解决了现场急需的工程技术难题，实现了石沟驿煤矿回采巷道设计、优化和局部关键点控制的整套技术参数和技术方案，取得良好的经济、社会效益和安全效益。 首先采用现场调研的方法掌握了S136工作面巷道煤层及顶底板的赋存环境，了解了巷道支护存在的问题。分析了影响回采巷道变形破坏的主要原因，同时运用岩石力学实验和数值模拟的方法对巷道变形破坏形式进行了研究，总结了工作面回风巷和运输巷变形破坏的主要形式。通过理论计算对巷道断面形状进行了重新优化，回采巷道选择“弧帮平顶”形的巷道断面，设计了喷锚网+锚索联合支护的方案与支护参数。最后对巷道围岩变形和锚杆锚固力进行监测以评价支护效果，现场监测表明S136工作面回风巷与运输巷支护设计方案满足了巷道支护要求，在比原方案成本增加12.7%的情况下将变形量减少了20%左右，较好的保障了巷道稳定，取得了较好的经济效益。 本研究成果对宁东矿区类似条件下工作面回采巷道支护设计具有借鉴作用。

The stability control technology of roadway with soft rock in underground mine is still the problem of restricting high production and high efficiency and safety mine. Based on the roadway supporting project of S136 working face in ShiGouyi coal mine, Against the stability control problem of surrounding rock in large section roadway with a weak aqueous under conditions of soft rock, a variety of comprehensive means are used to carry out this study. The ultimate solution of solving the site need of engineering and technical problems is accomplised, which achieves the set of technical parameters and technical scheme and local control of key points in Shi Gouyi coal mine for designing and optimizing roadway, obtaining good economic, social benefits and safety benefits. According to the field investigation method, the storage environment of roadway roof and floor in S136 working face was controled, the support problems of roadway were understood. The main reasons of roadway deformation and destruction were analysed, the deformation and failure of roadway was studied by the use of rock mechanics experiment and numerical simulation, the forms of roadway deformation and destruction in working face were summarized.The shape of roadway was re-optimized through the theoretical calculation, the cross section of " arc rib flat-roof" was choiced for the tunnel, the supporting scheme of anchor net and anchor cable and supporting parameter was designed. At the end, the deformation and anchor bolt of surrounding rock in roadway was monitored in order to evaluate the supporting effect, field monitoring showed that the roadway supporting design schemes in the S136 working face satisfied the requirements of roadway support, the cost increased by 12.7% under the condition of deformation decreased by about 20%,compared with the original scheme, the stability of tunnel was better guaranteed, which achieved a better economic efficiency. This research can provide reference for mining roadway support design under similar conditions in NingDong mine area.