GB/T 33521.32-2021Mechanical vibration - Ground-borne noise and vibration arising from rail systems - Part 32: Measurement of dynamic properties of the ground (English PDF)

National Standard of the People's Republic of China

Classification

J 04

Issued by: State Administration for Market Regulation, China National Standardization Administration

Contents

• Foreword
• Introduction
• 1 Scope
• 2 Normative references
• 3 Symbol
• 4 Propagation of ground-induced structural noise and ground-borne vibration
• 4.1 Overview
• 4.2 Ground-induced structural noise and ground-borne vibration ---frequency influence
• 5 Parameters of medium wave propagation in the earth
• 5.1 Overview
• 5.2 Fundamental wave propagation parameters
• 5.3 Material loss and nonlinearity
• 5.4 Geometry effects, stratification and lateral variability of the earth
• 5.5 Near Field Effect
• 5.6 Anisotropy
• 5.7 The influence of groundwater---two-phase geotechnical materials
• 6 Parameter estimation and measurement methods
• 6.1 Earth stratification and classification. borehole histogram and seismic survey
• 6.2 Soil and Rock
• 6.3 Empirical estimation method based on index parameters
• 6.3.1 Overview
• 6.3.2 Effective (volume) mass density
• 6.3.3 Wave velocity and elastic shear modulus
• 6.3.4 Nonlinearity and material loss factor
• 6.4 Indirect measurement based on in-situ penetration test of rock and soil
• 6.4.1 Overview
• 6.4.2 Cone penetration test
• 6.4.3 Standard penetration test
• 6.5 Direct in-situ measurement of dynamic parameters of the earth
• 6.5.1 Overview
• 6.5.2 Surface wave measurement
• 6.5.3 Lower hole (and upper hole) measurement---Seismic CPT (S-CPT)
• 6.5.4 Cross-hole measurement
• 6.5.5 Other measurements---refraction, multi-channel P-wave and S-wave reflection, resistivity
• 6.5.6 Other in-situ methods
• 6.6 Laboratory measurement of dynamic parameters of the earth
• 6.6.1 Overview
• 6.6.2 Piezoelectric measurement
• 6.6.3 Resonance column test
• 6.6.4 Cyclic triaxial, DSS and torsional shear test
• 7 Strategies for determining geodetic parameters
• 7.1 Overview
• 7.2 Severity of ground-borne vibration and ground-induced structure noise
• 7.3 Parameter estimation of available information
• 7.4 Summary of in-situ measurement and laboratory measurement
• Appendix A (informative appendix) Abbreviations used in this section