SHPB系统在岩体力学实验教学的应用和课程改革探索

Application of SHPB system in rock mechanics experiment teaching and exploration of curriculum reform

冲击荷载下岩体的动态力学强度劣化构成了岩爆、滑坡、落石等众多地质灾害发生的成因,借助霍普金森杆(SHPB)进行岩体动态力学特性的实验教学是土木工程学科教学必不可少的环节。文章对霍普金森杆的装置构造、实验原理、实验过程进行了叙述,指出目前实验教学中存在的问题,并提出调动学生上课积极性、促进和增强其实验参与性、理论的实践应用性及思维创新性等课程改革思路。

The degradation of dynamic mechanical strength of rock mass under impact load constitutes the cause of rock burst,landslide,rockfall and many other geological disasters.The experimental teaching of dynamic mechanical properties of rock mass with the help of Hopkinson bar(SHPB)is an essential part of civil engineering teaching.This paper describes the structure,principle and process of Hopkinson’s pole,points out the existing problems in the current experimental teaching and puts forward some ideas of curriculum reform such as arousing students’enthusiasm in class,promoting their experimental participation,enhancing their practical application of theory,stimulating their innovative thinking,etc.