This paper aimed at the safety problems of the explosive production lines, analyzed the state of entrucking industrial explosive, and calculated the distance that sympathetic detonation do not happen.
The specific properties of probability about loading effect on tunnel lining structure are analyzed by FEM response surface method,and the structure reliability index is calculated by fractile method.
This paper,by using analysable method of static balance,presents the calculated balance position and balance mass of large bell for blast furnace,so as to improve installational speed and quality.
The principle of sensor digital sum calculated technology is discussed,and the application of digital sum calculated technology in steel works of Shijiazhuang Iron and Streel Company is cited.
The Air Kerma Rate of 125I sources is determined by the well-type ionization chamber.Thereafter the apparent activity of 125I sources is calculated and measured results are anylyzed.