Study of Blasting Seismic Effect on Fracture Zones
According to the behaviors of the explosion source and the rock deformation, the effect zones of tunnel blasting include the failure and plastic deformation zone, the elastic-plastic deformation zone by the explosive stress wave, and the elastic vibration zone by the seismic wave. Based on the propagation characteristic of stress wave in fracture rock, the propagation of seismic wave in fracture zone was studied, and the test results were used in Qingzang railway Cuanjiao tunnel. Through the monitoring and analysis of blasting seismic, it indicates that some technical measures should be used in tunnel support The field test provides safety criterion and technical standards for rock blasting in fracture zone, which provide a reference for vibration damage control in such tunnel.
GAO Fuqiang HOU Aijun YANG Xiaolin YANG Jun ZHANG Zijian
Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang, 471023, China State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, Beijing New Building Materials Public limited Company, Beijing, 100096, China
国际会议
厦门
英文
255-258
2011-08-10（万方平台首次上网日期，不代表论文的发表时间）