含裂缝压实膨润土的渗透性能研究
摘要:为评价膨润土裂缝的自愈合效果，通过渗透-饱和试验，研究了不同裂缝形态、数量的压实膨润土试样渗透系数的变化规律，采用统计学方法分析了各组试样渗透系数的差异性。研究显示：在饱和过程中，干密度为1.2 g/cm~3的含裂缝压实膨润土的渗透系数随时间呈逐渐递减趋势，且含裂缝试样渗透系数与完整试样渗透系数之间无显著性差异。表明裂缝形态和数量对压实膨润土的渗透性无显著影响，压实膨润土具有良好的自愈性能。
Abstract:In order to evaluate the self-healing effect of bentonite fracture,researches were carried on to find the changing rules of permeability coefficient for the compacted bentonite samples,which have different fracture configurations and numbers,by permeated-saturated experiments.The statistical methods were used to analyze the differences of different permeability coefficient samples.The results show that permeability coefficient of compacted bentonite with fractures (dry density 1.2 g/cm3) gradually decreased with time during the saturated process,and the permeability coefficients have no significant differences between the samples with or without fractures.It also shows that configurations and numbers of fracture have no significant influence on the permeability of compacted bentonite.The compacted bentonite has good self-healing performance.
中文标题：
含裂缝压实膨润土的渗透性能研究
Research on Permeability of Compacted Bentonite with Fracture
作者：
陈洁,张永浩,王青海
Chen Jie,Zhang Yonghao,Wang Qinghai
作者简介:陈 洁,1985年生,女,汉族,黑龙江伊春人,工程师,主要从事环境地质研究。E-mail:chenjie1234@yahoo.cn
通讯地址：
西北核技术研究所, 陕西西安 710024
NorthwestInstituteofNuclearTechnology,Xi'an710024,Shaanxi,China
中图分类号:P642.13
doi:10.3969/j.issn.1007-2993.2014.01.010
出版物：岩土工程技术
收稿日期:2013-05-06
网络出版日期:2021-07-19
关键词:压实膨润土,裂缝,渗透系数,自愈合
Key words:compacted bentonite,fracture,permeability coefficient,self-healing
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