BUSINESS
Noise · Vibration Diagnostics
Subway Vibration
NSV predicts and evaluates ground vibrations caused by rail and subway operations in advance,
reviews compliance with regulatory standards, and provides optimal vibration isolation solutions.
Diagnostic
Objectives and
Expected Outcomes
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1 Complaint Prevention
- Increasing vibration-related complaints from subways (railways) and road traffic
- Evaluation of compliance with vibration criteria for vibration-generating equipment
- Preventing corporate image damage and compensation issues caused by complaints
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2 Cause Identification
- Accurate analysis of vibration sources
- Evaluation of vibration impact through the ground when designing new facilities (offices, plants, etc.)
- Preventing technical constraints caused by post-construction vibration control without prior assessment
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3 Optimal Countermeasures
- Analysis of vibration impact and effectiveness of control measures
- Optimal vibration-isolation design, including reuse of vibration-isolation materials
- Preventing excessive construction costs due to over-design
Process Steps
SCROLL
Data Collection (Current Conditions)
Collecting on-site information and baseline data to establish the foundation for vibration assessment.
- Collection of geological cross-section data
- Identification of vibration sources and building locations
- Measurement of current vibration levels
Review of Data & Standards
Reviewing collected data and applicable standards to establish the direction of the assessment.
- Review of soil layers (ground composition), vibration sources, and building layout
- Verification of architectural/structural drawings and ground conditions
- Review of vibration-related regulatory standards
Prediction (Simulation)
Analyzing vibration and structure-borne noise in advance through 3D modeling and simulation.
- Development of a 3D analysis model and prediction of vibration impact
- Simulation and analytical modeling
- Preparation of level contours and review of results
Evaluation of Prediction Results
Comprehensive evaluation of vibration and structure-borne noise based on simulation results.
- Review and assessment of vibration and structure-borne noise analysis results
Selection of Vibration Control Measures
Finalizing optimal vibration control measures considering both efficiency and cost-effectiveness.
- Derivation of optimal mitigation方案
- Consultation with the client (reflecting cost-effectiveness and operational feasibility)
- Final confirmation of vibration control measures
Design & Construction
Applying the finalized vibration control measures to the design and implementing them during construction.
Final Report
All processes and results are compiled and presented in the final report.
