Achievement of Safe Distance of Air Shock Wave in Tunnel Blasting
(0) Safe distance is computed by using overpressure function of underground mining blast air shock wave,which is employed inconveniently in the actual site,Nomograph method can solve effectively the problem,overpressure calculating equation of blast air shock is converted into line chart or graph in order to solve related problems.In accordance to the calculation formulas of the air overpressure underground mining,the human body can bear the overpressure,that is as a fixed value,and we can obtain graphic relationship of explosive amount,safety distance,tunnel structure parameters by employing Nomogram method,soon after,in the engineering background of tunneling,we assure that safe distance of air shock wave of man is 195m,and according to the characteristics of the tunneling blasting air shock wave,the measures of prevention and control of blasting air shock wave is put forward.
tunnel blasting air shock wave safety distance nomograph
YU Haihua YANG Haitao
Maanshan Institute of Mining Research Blasting Engineering Co.,Ltd.,Maanshan,Anhui,China
国际会议
The 4th Asian-Pacific Symposium on Blasting Techniques(第四届亚洲太平洋地区爆破技术研讨会)
深圳
英文
438-441
2014-11-01（万方平台首次上网日期，不代表论文的发表时间）