回采巷道底鼓控制技术研究

Study on Floor Heave Control Technology of Mining Roadway

回采巷道受到动压影响,围岩变形严重。对于紫晟煤业10502工作面而言,底板岩层软弱,导致底鼓量最大值达到1 200 mm。针对这一现象,对巷道两帮以及底板进行了加强支护,通过对加强支护巷道底鼓量的监测,得到巷道最大底鼓量为86 mm,达到了预期支护效果,有效控制了底板岩层的变化,保证了工作面的顺利回采。

Affected by dynamic pressure,the deformation of surrounding rock of mining roadways is serious.The floor strata of 10502 working face of Zisheng Coal Industry Co.,Ltd.was weak,causing the maximum floor heave volume to reach 1200 mm.In response to this phenomenon,the support of two sides and the floor of the roadway was reinforced.By monitoring the floor heave of the reinforced support roadway,it was obtained that the maximum floor heave of the roadway was 86 mm,which achieved the expected support effect,effectively controlled change of the floor rock strata,and ensured the smooth mining of the working face.