Abstract
Frequency plays a pivotal role in determining the rock-breaking effect of self-excited oscillating pulsed water jet. Experiments were conducted to investigate the relationship between frequency and rock-breaking effectiveness. A relationship between frequency and chamber length was established. An explanation was provided for the varying rock-breaking effects resulting from changes in frequency using the resonance effect theory, thereby revealing the mechanism through which frequency characteristics impact rock-breaking. Our findings demonstrate that the resonance effect significantly influences the rock-breaking effectiveness of the pulsed water jet. The closer the frequency ratio is to 1, the better the rock-breaking results. Notably, the pulse frequency of Helmholtz nozzles closely approximates the frequency of stress waves generated in the rock mass, and both decrease as the chamber length increases.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
