高速铁路地基黄土液化前后微观结构变化研究
HE INVESTIGATION ON MICROSTRUCTURE CHANGE OF LOESS LIQUEFACTION ON HIGH-SPEED RAILWAY FOUNDATION
以郑（州）-西（安）高速铁路为例，选择典型路段（华阴、潼关、灵宝和偃师等），采集大量原状黄土样品，进行动三轴液化试验。基于GIS软件对黄土液化试验前后的扫描电镜照片进行定量化数据提取和处理并进行分形研究。结果表明：液化试验后黄土孔隙微观结构具有分形特征，揭示了黄土孔隙分形分维同孔隙比之间有近似直线的关系。
his paper takes ZhengZhou-Xi’an high-speed railway as the object of the study, large number of undisturbed loess sample in HuaYin,TongGuan,LingBao and YanShi section has been collected, dynamic Triaxial Liquefaction Tests were carried out based on the GDS. This paper researched the fractal characteristic of the pore microstructure of loess and extracted many quantitative data by using the Fractal theory and GIS software. The result shows that the pore microstructure of loess have the character of fractal, and then the approximately line relationship between the fractal dimension and the void ratio is discussed.
王家鼎、任权、袁中夏
铁路运输工程工程基础科学地质学
高速铁路黄土地基液化微结构分维
high-speed railwayloess foundationliquefactionpore microstructurefractal dimension
王家鼎,任权,袁中夏.高速铁路地基黄土液化前后微观结构变化研究[EB/OL].(2008-02-19)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200802-177.点此复制
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