两河口引水发电系统预裂爆破生产性试验及成果

Productive Test and Results of Presplitting Blasting in Lianghekou Water Diversion and Power Generation System

两河口水电站石方开挖量大,开挖质量要求高,采用预裂爆破技术来控制开挖质量。通过预裂爆破生产性试验来验证爆破设计参数的合理性,并根据施工现场地质情况适时对爆破参数进行优化、调整,以期取得较好的开挖质量。

Lianghekou Hydropower Station has a large amount of rock excavation and high requirements for excavation quality.Presplitting blasting technology is used to control the excavation quality.Through the productive test of presplitting blasting,the rationality of blasting design parameters is verified,and the blasting parameters are optimized and adjusted according to the geological conditions of the construction site,so as to obtain better excavation quality.