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NEW PARAMETER TO DESCRIBE VISCOPLASTIC PROPERTY OF CLAY
Author(s): 
Pages: 859-863
Year: Issue:  5
Journal: CHINESE JOURNAL OF ROCK MECHANICS AND ENGINEERING

Keyword:  土力学粘塑性重塑土试样粘土;
Abstract: 研究了2种粘土的未扰动土试样和对应的重塑土试样在三轴试验条件下的粘塑性和1种粘土重塑土试样在三轴与单轴试验条件下的粘塑性.试验过程中,不同的加载阶段采用不同的恒定应变率.试验结果表明,3种粘土都表现出很明显的粘塑性.对试验结果的分析发现,粘土的粘塑性可以用一个新的粘塑性参数β来描述.粘土粘塑性越大,β值也越大.试验结果还表明,对于同一种粘土,未扰动土的β值要比重塑土的小;三轴试验条件下得到的β值要比单轴试验条件下得到的小.
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