The field experiment of rockbolt nondestructive detection was selected in Chacheng Mine, the results perform the dynamical characteristics of prestressed bolt supporting system.

• 在垞城矿进行了预应力锚杆的现场无损检测试验。试验结果表明：数值模拟结果真实地反映了预应力锚杆支护系统的动力特征。