土体相对密度对土工格室加筋砂土地基性能的影响

为了研究地基相对密度对土工格室加筋性能的影响,对五种不同相对密度(30％、40％、50％、60％和70％)的土工格室加筋砂土地基和未加筋砂土地基的模型进行载荷试验,研究不同相对密度土体地基的承载力沉降曲线、承载力提高系数、路基变形与基底沉降以及加筋拉应变的分布规律,并对土工格室加筋砂土地基的作用机理进行分析.试验结果表...

Influence of Soil Relative Density on Performance of Geocell Reinforced Sand Foundation

In order to study the influence of the relative density of the foundation on the reinforced performance of geocells, load tests were carried out on models with five different relative densities (30%, 40%, 50%, 60% and 70%) of geocell reinforced sand foundations and unreinforced sand foundations to investigate the bearing capacity settlement curves, bearing capacity improvement coefficients, road base deformation and subgrade settlement, and the distribution of reinforced tensile strain for different relative density soil foundations. The results of the tests show that the geocell reinforced sand foundations can be used at large relative densities. The test results show that the geocell reinforcement can effectively improve the stiffness, bearing capacity and dispersion load level of the foundation in a wide range of relative density; the deformation patterns of the fill surface and sand foundation show that the relative dimensions of the model box and foundation used in this paper can overcome the boundary effect, thus achieving better test results.