The high support strength of the high level of roadway peripheral rock under high stress not only causes material waste,but also consumes a lot of time and affects the mining speed;the low support strength can not achieve the effective control of peripheral rock,and there will be a big deformation of the peripheral rock or roofing accidents,which will lead to the failure of the roadway to be used normally.Based on this,combined with the geological characteristics of the high stress roadway under the high level of surrounding rock and the mining law of the working face,a new type of joint support scheme of the roadway anchors is proposed,and on-site monitoring is carried out to analyse the amount of the top and bottom plates of the roadway moving in and the force of the anchors.Through the monitoring results,it is found that the new support scheme can effectively slow down the deformation of the surrounding rock,and the amount of top and bottom plate migration tends to be stable and within the range of 130 mm,so the support effect is good.
high stresspermanent supportsupport parameterssurrouneling rock
NETL
NSTL
维普
万方数据
