红沿河核电站核岛负挖施工技术

Blasting Excavation Technology of Nuclear Island Foundation in Hongyanhe Nuclear Power Station

介绍了红沿河核电站核岛负挖工程,通过采取合理的分层、优化爆破参数、爆破网路等措施,使得核岛基坑成型较好,边坡预裂爆破半孔率达98%以上,爆破开挖达成了预期的效果,为类似工程提供了可贵的经验和借鉴。

A blasting excavation project for foundation of nuclear island was introduced. The expected effect was achieved by selecting reasonable delamination excavating, blasting parameters, blasting network and so on. As a resuit,foundation excavating of nuclear island was well moulded ,the half-hole rate is over 98 percent. This method provides valuable experiences and references to similar projects.