CAJ | 학술논문

　　边坡爆破临界振速的确定是岩土爆破开挖过程中的关键问题。结合对永平铜矿高陡边坡稳定性的分析，介绍了基于FLAC3D的边坡爆破临界振速的确定方法。首先建立边坡静力分析模型，使模型达到自重作用下的平衡状态，其次通过施加不同爆破振动峰值速度的爆破过程来确定边坡破坏的爆破临界振速，之后可以得到最大段装药量与爆心至边坡坡脚距离之间的关系式。介绍了边坡破坏的判别准则和应用 FLAC3D求解的流程。
　　변파폭파림계진속적학정시암토폭파개알과정중적관건문제。결합대영평동광고두변파은정성적분석，개소료기우FLAC3D적변파폭파림계진속적학정방법。수선건립변파정력분석모형，사모형체도자중작용하적평형상태，기차통과시가불동폭파진동봉치속도적폭파과정래학정변파파배적폭파림계진속，지후가이득도최대단장약량여폭심지변파파각거리지간적관계식。개소료변파파배적판별준칙화응용 FLAC3D구해적류정。
The determination of the critical blast-inducing vibration velocity is crucial in soil slope excavation. This paper uses the stability analysis of the high steep rock slope of Yong Ping copper mine as an example and introduces the determining method of the critical blast-induce vibration velocity using FLAC3D software. First,static analysis model was built for the object of study to remain in its natural state with no influence from external force;and then,the critical blast-inducing vibration velocity of the slope was determined by imposing blasting operations with different peak velocity. By this means,the relation between maximum explosive load and the distance of explosion center to the toe of slope can be concluded by a single formula. At the same time,the paper reviews the principle for the determination of slope destruction and the application of FLAC3D .