人民黄河2014，Vol.36Issue(4)：120-122,3.DOI:10.3969/j.issn.1000-1379.2014.04.038
大规模冰水堆积体开挖钻爆施工技术
Construction Technology of Excavation and Drill-and-Blast of the Massive Outwash Deposits
摘要
Abstract
There is about 1 / 2 slope as the outwash deposit slope accumulation body in Liyuan Hydropower Station. The outwash deposit is difficult for excavation and drill-and-blast,due to its large-scale,complex causes,and the extremely irregular distribution structure. After the systematic test and analysis,the composition and physical-mechanical properties of the outwash deposits particles were learnt and a further study about the drilling equipment selection,reasonable step height and drill-and-blast parameters was taken,and the blasting classification of outwash deposits was preliminary summarized,thus the difficulties of excavation and drill-and-blast of outwash deposits had been solved. Therefore,it had help to speed up the construction schedule and cut down the construction cost.关键词
冰水堆积体/开挖/爆破/钻爆参数/梨园水电站Key words
outwash deposit/excavation/blasting/drill-and-blast parameters/Liyuan Hydropower Station分类
建筑与水利引用本文复制引用
王志强,杨兴国,李洪涛,姚强,刘英..大规模冰水堆积体开挖钻爆施工技术[J].人民黄河,2014,36(4):120-122,3.基金项目
国家自然科学基金资助项目(51009104). （51009104）
