高边坡巨厚层泥砂岩互层深孔梯段爆破技术研究  

Research on Deep Hole Bench Blasting Technology for High Slope Thick Layer and Siltstone Interbedding

作　　者：王斌 WANG Bin(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,中国昆明650041

出　　处：《云南水力发电》2023年第8期115-118,共4页Yunnan Water Power

摘　　要：在水利工程明挖爆破中,都广泛推广使用梯段爆破、预裂爆破、光面爆破等技术,但在不同地质和施工条件下,不同的爆破参数对爆破效率影响甚大,以榆林黄河东线马镇引水工程二级泵站百米级高边坡巨厚层泥砂岩互层石方爆破为例,通过爆破参数的动态调整,从而提高爆破效率及预裂爆破残孔率。In the open excavation blasting of hydraulic engineering,techniques such as bench blasting,pre splitting blasting,and smooth blasting are widely promoted.However,under different geological and construction conditions,different blasting parameters have a significant impact on blasting efficiency.Taking the second stage pumping station of Mazhen Water Diversion Project on the east line of Yellow River in Yulin as an example,the blasting efficiency and residual hole rate of pre splitting blasting are improved through dynamic adjustment of blasting parameters.

关 键 词：巨厚层泥砂岩互层 露天深孔 梯段爆破 一次预裂成型 爆破参数 

分 类 号：TV542[水利工程—水利水电工程]