Experimental study on mechanical properties of rock block under collaborative action of anchor rod and steel strip
In order to study the action mechanism of steel band and anchor rod on anchor mass,uniaxial loading comparison test of end anchor and full anchor with steel strip and without steel strip was carried out by using RMT-150C rock mechanics test loading system,and the anchoring effect of anchoring method and supporting density on the specimens was compared.The results show that the full an-chor bolt has a stronger effect than the end anchor bolt in improving the strength of the specimens.The peak strength of the specimens installed with steel strips is generally higher than that of the specimens without steel strips,but with the increase of the number of bolts,this effect is gradually weakened.In addition,the lifting effect of steel strip on the whole anchor specimen is better than that of the end anchor specimen.The installation of steel strip specimens has improved both compressive strength and lateral tensile strength.The sup-porting density of anchor rods should be suitable for the size of the specimen,and an overly dense supporting density will also weaken the strength of the specimen.
rock block anchoragesimilar simulation experimentcollaborative supporting
万方数据
维普
