摘要
高频破碎锤是一种符合生态航道整治要求的新型除礁技术。为探究高频破碎锤清礁的凿入规律,通过高频破碎锤凿击模型试验,以凿入深度为衡量破岩效率的主要参数,研究钎杆凿入深度随时间变化的规律,分析不同岩体强度和不同工作档位对凿入深度的影响,在此基础上拟合不同工况下凿入深度分别与凿击时间和岩体强度的经验公式。研究结果表明:凿入深度随凿击时间呈非线性正增长关系,增长幅度随时间增大而减小;凿入深度随岩体强度增大而减小;凿入效率随工作档位变大而提高,其中3档为最佳工作档位。
High-frequency breaker is a new type of reef removal technology that meets the requirements of ecological waterway remediation.To explore the gouging law of high-frequency breaker reef clearing,the high-frequency breaker gouging model test is conducted,and the gouging depth is taken as the measurement standard of rock breaking efficiency.The law of the change of drill rod gouging depth with time is studied,and the influence relationship of different rock mass strength and different working gears on the gouging depth is analyzed.Based on this,the empirical formulas of gouging depth,chiseling time and rock mass strength under different working conditions are fitted.The results show that the chiseling depth has a nonlinear positive growth relationship with the chiseling time,and the increase amplitude decreases with the increase of time.The gouging depth decreases with the increase of rock mass strength.The gouging efficiency increases with the increase of the working gear,with gear 3 being the optimal working gear.
作者
张俊锋
王玮栋
裴邦学
钟润兵
汤德颖
王家豪
张露
文成跃
ZHANG Junfeng;WANG Weidong;PEI Bangxue;ZHONG Runbing;TANG Deying;WANG Jiahao;ZHANG Lu;WEN Chengyue(Changjiang Waterway Regulation Center,Wuhan 330039,China;Changjiang Chongqing Waterway Engineering Bureau,Chongqing 400010,China;College of River and Ocean,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《水运工程》
2024年第2期203-208,共6页
Port & Waterway Engineering
基金
长江重庆航道工程局科技项目(cqjt-2021-202)。
关键词
破碎锤
凿入深度
工作档位
破岩效率
breaker
chiseling depth
working gear
rock-breaking efficiency
