复杂环境下沟槽控制爆破应用

Application on Controlled Blasting with Ditch in Complicated Environment

沟槽爆破因临空面少,夹制作用大,不仅影响爆破效果,而且会造成爆破震动的加剧,使飞石产生的危险性增大。因此,如何在复杂的环境下进行沟槽爆破,既能抑制爆破的有害效应,又能达到预期的爆破效果,这已成为此类爆破工程中关注的问题。介绍了沟槽控制爆破技术在城市管线建设中的应用,论述了药包布置、爆破参数选择、起爆网路设计等技术问题。此工程经验对类似工程有一定的借鉴价值。

Due to the free face of ditch blasting is less, clamping action is large, not only affects the blast effect, and will result in the intensification of blasting vibration, so that the risk of flying stones have increased. Therefore, how in a complex environment with ditch blasting, not only can inhibit the harmful effects of blasting, and can achieve the desired effect of blasting, This has become such blasting engineering concern. An example of the ap- plication of the ditch blasting technique in city pipeline construction is introduced and the technologies of medicine package layout, the blasting parameters selection, detonating network design are mainly presented. Some experiences are useful for the similar projects.