为研究“110”工法留巷复用阶段巷道顶板变形规律并确定合理的巷道支护载荷，解决留巷复用的安全隐患，以韩家湾煤矿214202工作面回风巷为研究背景，建立了留巷复用时的切顶短臂梁力学结构模型，并采用数值模拟与现场实测相结合的方法，对留巷受二次开采扰动时巷道超前段顶板变形规律及采动影响分区展开了研究。研究表明：回风巷复用期间，超前影响区内巷道所需顶板支护强度为12 152.98 kN；基于理论计算提出的超前补强支护方案可使补强后巷道顶板变形量缩减为118~134 mm，较补强前减少58%；工作面超前影响区可划分为4个区域。

In order to study the deformation law of roadway roof in the reuse retaining roadway stage of “110” construction method and determine the reasonable roadway support load, and to solve the safety hazards of the reuse of the retained roadway, taking the return airway of 214202 working face of Hanjiawan Coal Mine as the research background, the mechanical structure model of the short-arm beam of the roof cutting in the reuse of the retained roadway was established, and the numerical simulation and field measurement were used to study the roof deformation law of the advance section of the roadway and the mining influence zoning when the retained roadway was disturbed by the secondary mining. The research shows that during the reuse of the return airway, the roof support strength required for the advance influence area is 12 152.98 kN. Based on the theoretical calculation, the proposed advance reinforcement support scheme can rednce the deformation of roadway roof to 118-134 mm after reinforcement, which is 58% lower than that before reinforcement; the advance influence area of the working face can be divided into four areas.