港口航道与近海工程2025，Vol.62Issue(3)：117-121,5.DOI:10.16403/j.cnki.ggjs20250327
水下非爆破碎岩设备关键技术的深度剖析与应用研究
Application Research and Deep Analysis of Key Technology of Underwater Non-Blast Rock Breakage
陈华林 1汪高星 2程聪1
作者信息
- 1. 中交华南交通建设有限公司,广东 广州 510320
- 2. 中交广州航道局有限公司,广东 广州 510320
- 折叠
摘要
Abstract
In response to the pollution problem and safety issue involving in the traditional underwater blasting method,Based on Shenzhen-Zhongshan channel project,an underwater non-blast rock-breaking technology was focused on,especially rock drill bar,hydraulic hammer,and high-frequency hammer.RHT constitutive model was combined with LS-DYNA software to simulate and analyze the impact of the following parameters on granite damage state such as the falling speed of rock drill bar,the striking energy of a hydraulic hammer,the vibration force and frequency of high-frequency hammer.The results showed that the falling speed of rock drill bar first increased and then kept unchanged,which was suitable for high-strength rock structure in a wide waters.The hydraulic hammer was suitable for single-point rock-breaking construction in a narrow waterway.The high-frequency hammer was of high efficiency in breaking a fractured rock layer,the damage radius expanded with time,the energy transfer efficiency could reach up to 95%.This study provides a theory basis for optimizing the parameters applied in construction,and assists the project in improving safety and environmental protection.关键词
水下非爆破碎岩技术/能量传递机制/数值模拟/RHT模型/液压破碎锤/高频振动锤/凿岩棒Key words
underwater non-blast rock-breakage technology/energy transfer mechanism/numerical simulation/RHT model/hydraulic hammer/high-frequency vibro-hammer/rock drill bar分类
交通工程引用本文复制引用
陈华林,汪高星,程聪..水下非爆破碎岩设备关键技术的深度剖析与应用研究[J].港口航道与近海工程,2025,62(3):117-121,5.
