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利用相关工程经验结合岩滩水电站地下洞室围岩的特点,进行了岩锚梁岩台开挖爆破试验。从现场爆破效果以及测量分析可以看出,两组爆破试验均取得了良好的效果,同时爆破振动速度满足设计和相关规范的要求,为后续岩台的开挖提供了重要的设计参数。
Based on the relevant engineering experience and the characteristics of the surrounding rock of the underground caverns of Yantan Hydropower Station, the rock burst test of rock anchor beam was carried out. From the blasting effect and measurement analysis, it can be seen that both sets of blasting tests have achieved good results. At the same time, the blasting vibration velocity meets the requirements of design and relevant specifications, which provides important design parameters for the subsequent excavation.