The develop actuality and direction of FRP(fibre glass reinforced plastics) bolt in the world are analyzed The new type structure of FRP bolt was designed Trial data indicate that, all kinds of capability target o...The develop actuality and direction of FRP(fibre glass reinforced plastics) bolt in the world are analyzed The new type structure of FRP bolt was designed Trial data indicate that, all kinds of capability target of this FRP bolt all achieve and exceed the country standard, substitute present metal bolt,wood bolt and bamboo bolt and other side bolt, it can gain magnitude technology and economy benefit FRP bolt mechanization product line produce efficiency is high, its throughput a day are 750 base, this can meet demand of hit small mining company展开更多
Based on a great number of measured data, the author put forward zonal com-pressive and tensile deformation mechanism of soft rock around roadway. By using self-supporting capacity of compressive zone and controlling ...Based on a great number of measured data, the author put forward zonal com-pressive and tensile deformation mechanism of soft rock around roadway. By using self-supporting capacity of compressive zone and controlling rock deformation of tensile zone, the long bolt or short bolt group supporting form was given for different size of rock compressive zone and tensile zone. Finally, studied on the determining method of rational support parameters of bolting and shotcreting with wire mesh in different support technol-ogy.展开更多
文摘The develop actuality and direction of FRP(fibre glass reinforced plastics) bolt in the world are analyzed The new type structure of FRP bolt was designed Trial data indicate that, all kinds of capability target of this FRP bolt all achieve and exceed the country standard, substitute present metal bolt,wood bolt and bamboo bolt and other side bolt, it can gain magnitude technology and economy benefit FRP bolt mechanization product line produce efficiency is high, its throughput a day are 750 base, this can meet demand of hit small mining company
文摘Based on a great number of measured data, the author put forward zonal com-pressive and tensile deformation mechanism of soft rock around roadway. By using self-supporting capacity of compressive zone and controlling rock deformation of tensile zone, the long bolt or short bolt group supporting form was given for different size of rock compressive zone and tensile zone. Finally, studied on the determining method of rational support parameters of bolting and shotcreting with wire mesh in different support technol-ogy.
