摘要
分析和研究了爆破振动效应主要控制因素和安全判据。介绍了临近重要保护物、特殊地层中的开挖爆破振动效应与安全判据和隧道爆破开挖对上覆建筑物的振动影响及安全控制。现场测定结果与研究表明,不同条件下的开挖爆破引发的地震波衰减规律不同,并根据质点振动速度,提出了重点文物、岩溶隧道和冻土隧道、地铁等环境条件下的爆破振动安全标准。
The paper analyzes and studies the main control factors and safety criteria of blast-vibration effect, and describes the adjacent important objects to be protected, the vibration effect and safety criteria of blasting for excavation in special stratum, the vibration effect and of blasting tunnelling on the overlying buildings and their safety control. The site measurement results and research show that excavation blasting under different conditions can induce seismic waves with different attenuation laws. In light of the particle vibration velocity, the safety criteria of blast-vibration for such environmental conditions as major cultural relics, karst tunnel, frozen earth tunnel and subway are proposed.
出处
《金属矿山》
CAS
北大核心
2008年第2期35-39,共5页
Metal Mine
基金
河南省高校青年骨干教师基金项目
河南省教育厅攻关项目(编号:200510460001)
河南省教育厅自然科学基金项目(编号:2006130002)
关键词
爆破开挖
振速
主频
安全判据
Blasting for excavation, Vibration velocity, Main frequency, Safety criteria
