深孔梯段控制爆破技术在阿尔塔什大坝级配爆破料开采中的应用

Application of deep holebench controlled blasting technology in the mining of graded blasting materials for Altash Dam

新疆阿尔塔什大坝工程为混凝土面板砂砾石堆石坝,其堆石料区主要为爆破料、排水料,堆石料设计填筑量达1033万m 3。结合现场复杂地形地质情况,选择在附近山体有针对性地开展爆破试验,确定爆破参数,采用深孔梯段爆破技术进行级配爆破料开采,并考虑大体量、高陡边坡的爆破施工安全,能够实现高强度级配爆破料的开采,可为同类爆破工程提供参考。

Xinjiang Altash dam project is a concrete-faced sand and gravel rockfill dam.Its rockfill area mainly contains blasting materials and drainage materials with the designed rockfill capacity of 10.33 million m 3.The complex topography and geology are combined to select the nearby mountain for targeted blasting experiments.Blasting parameters are determined,deep hole bench blasting technology is adopted for graded blasting material exploitation.Huge and high slope blasting construction safety is considered to mine high strength graded blasting materials,thereby providing reference for the similar blasting projects.