摘要
结合岩土特性,运用应力应变关系和波的传播特性,证明用质点振速描述爆破地震效应的合理性。通过多次的爆破地震观测,获得了大量地震波波形图和频谱图资料,并获得了不同场地的地震波传播规律及参数。通过研究爆破振动测试结果,将我国《爆破安全规程》与国外安全标准进行对比,从理论上阐明了爆破安全标准应将振速限值与振动频率相关联,并提出了改进办法和爆破地震安全振速建议标准。
The rationality of using particle vibration velocity to describe blast-induced seismic effect is testified by using the stress-strain relation of rock and soil,and characteristics of wave propagation. A lot of seismic wave diagrams and frequency spectrograms are obtained from a lot of blast-induced seism. The propagation law and parameters of seismic wave in different places are studied. The regulations of blasting safety in China are compared with criteria used abroad,and it is theoretically interpreted that the limit value of vibration velocity and vibration frequence should be related to each other and put into the building safety criteria. Some improved methods and optional criteria of vibration velocity of blast seism are proposed.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第11期1907-1911,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
国家建设部科技攻关项目(02-2-1.7)
湖南省教育厅项目(02C541)。
