This study explores the effects of dynamic and static loading on rock bolt performance a key factor in maintaining the structural safety of coal mine roadways susceptible to coal bursts. Employing a house-made load frame to simulate various failure scenarios. pretension-impact-pull tests on rock bolts were conducted to scrutinize their dynamic responses under varied static load condit... https://www.fitnessgravesyardes.shop/product-category/left-cup-holder/