摘要
王快水库渠首引水隧洞的填塞体采用岩塞爆破法拆除,该方法是水下控制爆破的一种经济有效的方法。填塞体由上下游砖砌挡墙和混凝土组成。根据工程的实际情况,预拆除了上游的砖砌挡墙和沉积物,为爆破施工提供了良好的临空面,并采用爆破拆除的施工方案将剩余填塞体1次拆除。通过设计合理的爆破参数、起爆网路以及网路试验,达到了预期的爆破效果。作为河北省首例混凝土填塞体爆破工程,为其他类似工程积累了宝贵的经验。
Rock plug blasting was used to demolish the packing of diversion tunnel in canal head oi Wangkuai reservoir. This method was a kind of underwater controlled blasting, and it was economic and effective. The packing was made up with concrete and brick walls upstream and downstream. According tc the actual circumstance of engineering, the sediment and brick wall upstream were pre-demolished, which could provide nice free face for blasting construction. The scheme of blasting demolition was used to demolish the residual parts once. The anticipative blasting effect was reached by the reasonable design ot blasting parameters and network, and the experiments on network. Being the first blasting engineering oi concrete packing in Hebei Province, it was accumulated valuable experience for other similar engineering.
出处
《工程爆破》
北大核心
2013年第1期57-59,27,共4页
Engineering Blasting
关键词
岩塞爆破
填塞体
引水隧洞
爆破参数
Rock plug blasting
Packing
Diversion tunnel
Blasting parameters
