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留巷顶板稳定性的控制直接关系到留巷是否能够成功,沿留巷走向将巷道划分主要控顶区,分区域主动强化控制巷道顶板,针对各个区的动压影响特点采取针对性补强加固措施,随后在留巷补强加固后进行了两帮及顶底板变形量及变形速度的观测记录,结果表明该措施达到了上覆岩层形成留巷围岩大结构保护下层留巷围岩小结构效果。在工作面采动压力下留巷也基本维持了稳定性。
The control of roof stability of retaining road is directly related to the success of retaining roadway. The roadway is divided into main control zones along the retaining roadways. The sub-zones take the initiative to strengthen the control of roadway roofs and take targeted reinforcement and reinforcement according to the dynamic pressure impact characteristics of each zone Afterwards, the observation records of deformation and deformation rate of two gangs and top floor were carried out after strengthening and reinforcement of retaining roadway. The results show that the measures have achieved the formation of overlying strata. . Under the mining face pressure, the stay lane basically maintained the stability.