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中文摘要：
通过选用无粘性材料石英粉、砂和粘结性材料膨润土、石膏、工业盐，采用空中自由下落法，帝】备出强湿陷性人工黄土，进行物理力学性质试验．研究结果表明，人工制备强湿陷性黄土在密度、土粒比重、孔隙比、液塑限、最大干密度、最优含水率等物理性质和抗剪强度指标、压缩指标等力学性质方面都与黄河中游地区天然黄土有很好的相似性．在固结浸水过程中，试样高度的变化分为显著的压密变形、湿陷变形和湿陷饱和后固结变形3个阶段．可通过控制和改变材料中粘结成分、排列方式和形成过程等显著影响湿陷性的一系列变量，更好地从矿物成分、制作过程、影响因素等多方面研究湿陷性黄土的工程性质，能够使试验结果具有可重复性和可控性．
英文摘要：
By means of experimental air-free falling method, the artificial serious collapsible loess is prepared with cohesionless materials.quartz powder, sand and viscous materials, bentonite, gyp- sum and industrial salt ,and it is utilized to conduct physical mechanics experiment. Study results show that the physical properties such as density, specific gravity of soil, void ratio, liquid and plastic limit, maximum dry density, and optimum moisture content and mechanical properties such as shear strength parameters and compression indexes of artificial serious collapsible loess have a good compatibility with the physical and mechanical properties of the natural loess in the middle reaches of the Yellow River. In the process of consolidation soaking, the change of the sample height is divided into three stages, significant consolidation deformation, collapsible deformation and consolidation deformation after wet saturated. Based on controlling and changing a series of variables that significantly influence the collapsibility of the soil, such as bond composition, ar- rangement pattern and forming process, the engineering properties of the collapsible loess can be better researched from aspects of mineral composition, making process and influencing factors, which can make the test result repeatable and controllabe.
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