爆破2025，Vol.42Issue(2)：31-43,128,14.DOI:10.3963/j.issn.1001-487X.2025.02.004
涉水边坡预裂爆破参数优化试验研究
Experimental Study on Optimization of Presplitting Blasting Parameters for Water-adjacent Slopes
摘要
Abstract
Pre-splitting blasting has been widely employed in river channel slope excavation to effectively miti-gate damage to the retained rock mass,reduce blast-induced vibrations,and optimize blasting parameters for water-saturated slopes.Investigation of reasonable parameters for pre-splitting blasting in such conditions is important for river channel excavation projects.Based on geometric,physical,and dynamic similarity principles,an experimental model for pre-splitting blasting water-saturated slopes was designed,utilizing concrete as a substitute for red sand-stone and detonators instead of emulsified explosives.The quality of pre-split crack formation,slope face shaping,and retained rock mass damage were evaluated under various conditions.The results showed that the pre-split crack for-mation quality and slope shaping quality significantly improved.The damage to the retained rock mass was reduced by 24.86％ when the hole diameter increased from 0.8 cm to 1.2 cm.Field test results indicated that the optimal blas-ting effect can be achieved with a pre-split hole diameter of 115 mm and a hole spacing of 80 cm in a practical applica-tion of pre-splitting blasting for water-saturated slopes when the geological conditions involve medium-hard rocks.关键词
涉水边坡/预裂爆破/预裂孔参数优化/岩体损伤/模型试验Key words
water-adjacent slopes/pre-splitting blasting/parameter optimization/rock mass damage/model test分类
矿业与冶金引用本文复制引用
钟冬望,陶好好,李琳娜,李腾飞,何理,司剑峰,万佳伟,高晗..涉水边坡预裂爆破参数优化试验研究[J].爆破,2025,42(2):31-43,128,14.基金项目
湖北省重点研发计划项目(2020BCA084) （2020BCA084）
国家自然科学基金(52274136) （52274136）
湖北省自然科学基金项目(2022CFB594) （2022CFB594）
武汉科技大学研究生创新创业基金(JCX2021064) National key research and development program of Hubei province(2020BCA084),National Natural Science Foundation of China(52274136),Natural Science Foundation of Hubei Province(2022CFB594),Graduate Student Innovation and Entrepreneurship Foundation of Wuhan University of Science and Technology(JCX2021064) （JCX2021064）
