摘要
定向预裂爆破采用非中心对称装药,使爆炸能量向设计预裂缝方向集中从而达到保护保留结构免遭爆炸破坏之目的。保留结构的质量用爆破声波变化率即爆降率作鉴定,其破坏判据通过模拟试验确定。
Adopt the uncentral symmetric loading of directional presplit blasting, concentrate the blasting energy to the designed presplitting direction, so that the retained structure can be protected from blast damage. Utilize the sound velocity variation of concrete before and after the blasting, that is 'blast decreasing rate', for identification of the quality of the retained structure. Through the simulated experiment the criterion of damage can be determined.
出处
《爆破》
CSCD
1992年第4期1-4,共4页
Blasting
