Physical properties and microstructure of aeolian sand (By Lin Chen)

December 2, 2016 in @en, post by Davesne.G

Climate warming and human activities have led to significant grassland degradation and desertification on the Qinghai-Tibet Plateau (QTP). The performance of Qinghai-Tibet Railway (QTR) have been affected by aeolian sand transportation and deposition. The physical properties of aeolian sand are of importance to evaluate the long-term thermal performance of crushed-rock interlayer embankment (CRIE) under the combined influence of aeolian sand clogging and climate warming. The soil properties and scanning electron microscope / energy dispersive X-ray (SEM / EDX) were conducted. And a two-dimensional unsteady finite-element model was used to simulate the impacts of climate warming and aeolian sand clogging of CRIE on its cooling performance.

aeolian sand