条形药包硐室爆破技术在山体危岩排险施工中的应用

Application of Chamber Blasting with Linear Charge in Unstable Rock Risk-elimination

摘要:

危岩体硐室爆破一次排险量大，施工速度快，是大方量应急排险的首选爆破方案。本次巫山山体危岩硐室爆破排险，通过详细的地质调查和地形地貌测绘，采取信息化指导施工，安全、快速地完成了应急排险任务，一次排险28.7万m3，历时46天，取得了较好的经济效益和社会效益。论述了本次爆破方案的设计、爆破参数的选择以及施工技术，介绍了爆破效果，总结了经验体会。

Abstract:

Unstable rock chamber blasting is the first blasting scheme for large volume emergency treatment with rapid construction speed. With detailed geological survey and topography mapping, and with informational instruction, the risk-elimination by chamber blasting was carried in Wushan, 287000m3 unstable rocks were eliminated in 46 days. The paper discussed the blasting scheme design, blasting parameter selection, construction technology and blasting effect with the experience.