This paper presents the behavioral results of a large-scale experimental EPS block embankment under different test and load conditions. The experimental embankment was designed and constructed to be similar to a road structure of flexible pavement and 22 kg/m³ EPS geofoam blocks supported by a soft soil subgrade. The experimental embankment was subjected to the Benkelman beam test and a load test using a 50,000 kg six-axle tractor semitrailer, and was instrumented with total pressure cells (TPC) to verify the vertical stresses propagated from the surface to the depth. Complementary analyses of both tests were performed by the layered elastic theory (LET). The results of the tests and analyses in the LET showed that using a correctly designed flexible pavement over the EPS blocks generates a structure with adequate performance. As well as in some previous studies, the elastic parameters determined in small samples of the EPS blocks tested in laboratory did not correspond to the behavior observed in field, where large blocks submitted to reduced deformations levels are employed. The conclusion was that LET can be used simply and conveniently as an adequate tool for pavement analysis with the presence of EPS blocks in its structure.

本文介绍了在不同的试验和载荷条件下，大型实验性EPS块状路堤的行为结果。实验路堤的设计和建造类似于柔性路面的路面结构，重量为22 kg / m ^3。EPS软土地基支撑的EPS泡沫块。对实验路堤进行了Benkelman梁测试和使用50,000 kg六轴拖拉机半挂车进行的载荷测试，并用总压力传感器（TPC）进行了测试，以验证从表面传播到深度的垂直应力。两种测试的补充分析均通过分层弹性理论（LET）进行。LET中的测试和分析结果表明，在EPS块上使用正确设计的柔性路面会生成具有足够性能的结构。与以前的一些研究一样，在实验室测试的EPS块的小样本中确定的弹性参数与现场观察到的行为不符，在现场，采用了变形程度较小的大块。