青洼矿2101工作面支护参数设计研究

Study on Support Parameters of 2101 Working Face of Qingwa Mine

为了对2101工作面支护进行研究,在两巷分别采用锚网索支护和注浆加固的措施提高巷道承载能力,并设计了锚网索和注浆参数;根据工作面煤层赋存条件和顶板性质,通过公式计算得到液压支架支护的高度、阻力和强度等参数,为工作面支架选型提供依据。通过监测两巷围岩变形量和锚杆受力情况可知支护提高了工作面的稳定性。

in order to study the support of the 2101 working face,the load-bearing capacity of the roadway was improved by means of support and grouting in the two lanes respectively.According to the condition of coal seam in the working face and the properties of the roof,the pa-rameters such as height,resistance and strength of the hydraulic support are calculated by formula,which provides a basis for the type selec-tion of the working face support.By monitoring the deformation of the surrounding rock and the stress of the anchor rod in the two lanes,the stability of the working face can be improved.