The Relationship between Dynamic and Static Deformation Modulus of Unbound Pavement Materials Used for Their Quality...

Area of Science:

• Geotechnical Engineering
• Civil Engineering
• Materials Science

Background:

• Assessing mechanical efficiency of transport structures requires reliable deformation models.
• Discrepancies exist between static and dynamic deformation models in Central European conditions.
• Standard quality control methods include the dynamic load plate test (lightweight dynamic test) and static plate load test.

Purpose of the Study:

• To explain discrepancies in static and dynamic deformation models for transport structures.
• To establish a correlation dependency between quantification characteristics in earthworks quality control.
• To validate the applicability of existing models under various boundary conditions.

Main Methods:

• Development of analytical and numerical models for subsoil assessment.
• Comparison of results from static and dynamic load plate tests.
• Application of the static theory of impact to earthworks quality control.

Main Results:

• The commonly used linear calculation in Central Europe lacks universal validity for subsoil analysis.
• A power dependence was identified as the accurate correlation between static and dynamic test characteristics.
• Analytical and FEM models for soil require re-evaluation based on empirical findings.

Conclusions:

• The relationship between static and dynamic deformation models is a power dependence, not linear.
• Current linear models are insufficient for universal application in Central European earthworks.
• Accurate quality control necessitates considering the identified power-law correlation.