工作面过空巷时，因超前支承压力的影响，底板空巷会出现矿压显现剧烈以及顶板冒落的现象。为研究空巷随开采距离的应力演化规律，建立数值模拟模型，分析巷道围岩应力演化特征，揭示底板空巷应力演化的机理，得出：①常村煤矿2106工作面回采过程中，工作面前方有较大超前支承压力，应力值在30～40 MPa；②底板空巷受超前支承的影响，巷道所受的最大主应力发生偏转，进而导致底板巷道非均匀破坏。

 For the working face passing through the empty roadway, due to the influence of the advance abutment pressure, the floor empty roadway will have the phenomenon of severe mine pressure and roof caving. In order to study the stress evolution law of the empty roadway with the mining distance, a numerical simulation model was established to analyze the stress evolution characteristics of the surrounding rock of the roadway and reveal the mechanism of the stress evolution of the floor empty roadway. It was concluded that①during the mining process of No. 2106 Face, there was a large advance abutment pressure in front of the working face, and the stress value was 30MPa～40MPa ; ②Under the influence of advance support, the maximum principal stress of the roadway was deflected, which led to the non-uniform failure of the floor roadway.