峡江水利枢纽拓塘防护工程爆破设计与施工

摘要

The Tuotang protection works of Xiajiang Hydraulic Complex in Jiangxi Province is characterized by mul⁃tiple types of excavated sections and complicated geological conditions. Some sections of channel have bottom on base rock which renders much construction difficulties. For excavation of channel, layered and segmented shallow hole loosening controlled blasting and slope pre-splitting blasting were adopted. Blasting scheme and parameters were determined combined with the actual construction conditions, so as to guarantee the construction safety and progress.%针对江西省峡江水利枢柘塘防护工程开挖断面型式多，地质条件复杂，其中部分渠道底部为基岩，施工难度较大，渠道开挖施工，爆破设计采取分层分段浅孔松动控制爆破方案和和边坡预裂爆破的方式，结合施工实际情况合理确定爆破方案和爆破参数，从而保证了施工安全及施工进度。