加强松动控制爆破在乌江渡扩建工程进水口挡水岩坎拆除中的应用

Application of Strengthening Control Loosen Demolition in Removing Blocking Water Inlet Rock Bank of Wujiangdu Power Plant's Extension Project

加强松动控制爆破是通过对常规爆破作业进行改进和创新,使爆破时达到岩石松动而不飞散的效果,既保证爆破安全又能满足机械清运的要求,从而提高施工进度、质量和效益。这种爆破方法在乌江渡发电厂扩建工程进水口挡水岩坎拆除中得以应用,在消除爆破震动和飞石对引水塔、大坝及爆区周围环境的影响方面取得了良好的效果,也为今后在页岩地质条件下的施工提供了较好的经验。

Strengthening control loosen demolition is improve and innovate to routine bursting work,making rock become loosen without flying and scattering when it is blowing up.It can not only ensure to blow up safely but also meet the requirement of mechanical spoiling,and improve construction speed,quality and benefit.This kind method of blowing up was used in removing inlet rock bank blocking water in Wujiangdu power plant's extension project,and made good results in dispelling impacts of vibration from blasting and stonefall on the diversion tower,the dam and surrounding environment.This construction practice has too offered better experience for constructing under the shale geological condition in the future.