Vibration mitigation for underground tunnels using jet-grouted barriers subjected to impact pile driving

Key Points

• Impact pile driving generates notable ground vibrations, affecting tunnel integrity and safety.
• Mitigation techniques, including the use of jet-grouted barriers, successfully reduced vibrations by 30% during construction.
• Assessment of vibration levels demonstrated significant improvements with the application of barriers in high-risk areas.
• Findings suggest potential for enhanced construction methods, emphasizing the need for further field tests.