Published: 2016-06-22

Impact of reinforcement layer material and thickness on deflections measured in the static and dynamic plate load tests

Bartłomiej Krawczyk , Piotr Mackiewicz

Abstract

The bearing capacity and compaction values obtained in the plate load tests (the latter determined indirectly) often depend on the used test method: static - using static load test apparatus (VSS) or dynamic - using light weight deflectometer (LWD). Despite extensive comparative studies the correlation between two test methods still remains an issue. With the values obtained in the field tests and with the use of numerical calculations allowing for the impact of viscoplastic phenomena, the authors managed to demonstrate how big is the effect of not only the type of material, but also of the thicknesses of the reinforced subgrade layers on the discrepancy between the displacement values obtained with the two test methods in consideration. The behaviour of the subgrade material during the tests was verified using the finite element method. The share of elastic, plastic and creep strains in the total strain was determined for different layered systems and thicknesses.

Keywords:

elastic modulus, FEM, Light Weight Deflectometer, loading time, subgrade parameters, viscoplastic model, VSS (static plate load test)

Similar Articles

<< < 11 12 13 14 15 16 17 18 19 20 > >> 

You may also start an advanced similarity search for this article.

Most read articles by the same author(s)

Download files

PDF

Citation rules

Krawczyk, B., & Mackiewicz, P. (2016). Impact of reinforcement layer material and thickness on deflections measured in the static and dynamic plate load tests. Roads and Bridges - Drogi I Mosty, 15(2), 87–102. https://doi.org/10.7409/rabdim.016.006

Cited by / Share


This website uses cookies for proper operation, in order to use the portal fully you must accept cookies.