Field tests study on bottom corner anchor acting effect

The article aims to reveal the function of bottom corner anchor in stabilizing coal mine rock roadway,and argues for the importance of strengthening essential control point to control the whole stability of the roadway.Based on modern mechanics as the basic theory,based on the track down the mountain in IV53 panel in huaibei mining shares limited liability company Yang Zhuang coal mine as the research object,and the field measured data was regarded as the argument.not only the huge role of bottom corner anchor which was used to control floor heave is proved,but also the significant effect of bottom corner anchor which was used to control the roadway overall stability.In present article,not only a lot of the field measured data was given,but also the special construction methods and special engineering geology condition were more detailed introduced.Research results have an important guidance and reference value to the control mechanism study of overall stability of coal mine soft rock tunnel and floor heave.