Research on Permeability of Compacted Bentonite with Fracture

Chen Jie; Zhang Yonghao; Wang Qinghai

doi:10.3969/j.issn.1007-2993.2014.01.010

Volume 28 Issue 1

Jul. 2021

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Chen Jie, Zhang Yonghao, Wang Qinghai. Research on Permeability of Compacted Bentonite with Fracture[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2014, 28(1): 41-44. doi: 10.3969/j.issn.1007-2993.2014.01.010

Citation:

Chen Jie, Zhang Yonghao, Wang Qinghai. Research on Permeability of Compacted Bentonite with Fracture[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2014, 28(1): 41-44. doi: 10.3969/j.issn.1007-2993.2014.01.010

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Research on Permeability of Compacted Bentonite with Fracture

doi: 10.3969/j.issn.1007-2993.2014.01.010

Northwest Institute of Nuclear Technology, Xi'an 710024, Shaanxi, China

Received Date: 2013-05-06
Available Online: 2021-07-19

Abstract

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.
- compacted bentonite,
- fracture,
- permeability coefficient,
- self-healing