针对巷道围岩为复合岩层且其变形难以控制的情况,在分析巷道复合围岩变形特点的基础上,提出了阶梯式立体支护技术。分析了阶梯式立体支护的原理和围岩控制机理,结合平煤公司现场实际进行了支护参数确定和现场实施。现场观测表明,复合岩层巷道阶梯式立体支护技术取得了良好的技术效果和经济效益。 Aiming at the condition that the surrounding rock of the roadway is a compound rock formation and its deformation is difficult to control, the stepped three-dimensional support technology is proposed based on the analysis of the deformation characteristics of the compound surrounding rock. The principle of stepped support and the control mechanism of surrounding rock are analyzed. According to the actual situation of Pingmei Company, the support parameters are determined and the site is implemented. The field observation shows that the stepped technical support of compound rock roadway has achieved good technical results and economic benefits.