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The response of roads under hundred-ton-level impact loads is complex and affects the success of operations. Finite element models of elastoplastic roads can simulate road settlement responses under impact loads, but the accuracy of numerical simulation results lacks experimental validation. Additionally, model parameters exhibit significant variability, making it difficult to determine them in practical engineering applications. Different parameter settings greatly influence the accuracy of simulation results, making them difficult to support engineering operations. To predict the road response under impact loads and ensure operational success, this study selects a typical road layer structure and designs equivalent impact load tests to investigate the settlement response patterns of typical roads under impact loads. Based on experimental findings, appropriate constitutive models are selected for typical materials in each layer of the typical road. Methods are developed to adjust the nonlinear constitutive model parameters of loess subgrade through engineering parameters such as moisture content and compaction degree. A finite element model of the typical road is established for simulation. The simulation results are compared with experimental data in three dimensions: peak pavement settlement, residual settlement, and the geometric state of overall road surface settlement. The deviations are within 10%, verifying the effectiveness of the finite element modeling approach for typical roads. The related research results can be widely used in road transient impact response simulation.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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