Forum pracy nad projektem wskrzeszenia The Forge

[02fdd68lv]

Excavation of the tunnel end Xiang'an Five-submarine weathering slot


Predict the safety of moving particle blasting vibration velocity formula V: (Q D 1 / R) (7) where: is the particle velocity blasting zone somewhere,[link widoczny dla zalogowanych], cm / s; Q is the maximum explosive charge, kg; R is the particle the distance to the explosion source, m; k, mouth are related with the geological and topographical factors, index. Currently facing the implementation of chamber blasting a significant problem is the surrounding environment more complex problem that deserves attention personnel blasting design. Blasting the program should be selected to the principle of safety first and then consider the blast effects. A single particle vibration velocity as a measure of blasting the only indicators of earthquake intensity has some defects,[link widoczny dla zalogowanych], so the literature [7] EXPLOSIVES Fellow and Professor Yu Yalun vibration velocity and proposed to the two main vibration frequency of blasting vibration as a safety indicator criteria,[link widoczny dla zalogowanych], which determine the safety of blasting is necessary. Particularly under complex conditions Chamber Blasting should try it out. The paper also describes two blasting vibration frequency formula. ① f = (kfc ~ / Q D) · (Q a / R) i ( where:. Factory blast ground motion caused by vibration frequency of the particle surface; k is the frequency factor; e-wave velocity of rocks in, crn / s; Q is the same distance at the same time the total initiation dose, kg; R is the distance of measuring point to the explosion source, m. ② f = k (Q d / l) (9) where: k is the coefficient for the chamber burst, k = 0.8 ~ 5.0. 2 Conclusion chamber blasting the computer design system automatically optimizes the design to overcome the traditional manual shortcomings and improve the design efficiency and accuracy,[link widoczny dla zalogowanych], it should strengthen the development of this technology and make it be good in engineering applications. Blasting chamber while some unreasonable should actively take measures to improve, so that the blasting design tends to scientific, standardized and systematic. With the chamber blasting technology continues to evolve,[link widoczny dla zalogowanych], and its will in the future infrastructure construction in China to play a greater role.
More articles related to topics：


tory burch

[url=http://www.cce.com.cn/plus/view.php?aid=93111]uggs nederland Implications of the Humanistic Univ

discount ugg boots SS3G channeling electric locomo

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]