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- Title
含管状孔隙黏性土渗透性试验研究.
- Authors
魏常琦
- Abstract
Cohesive soil is often considered to be impervious or a water-proof layer in the construction of water conservancy projects. Its permeability is mostly weak or slightly. Cohesive soil containing tubular pores develops at the leading edge of the piedmont alluvial fan. Due to the current equipment for taking soil samples, the structural damage of the tubular pores is serious when the soil samples are taken and the tubular pores are easily broken or blocked during the indoor ring-making process and the true permeability coefficient of the cohesive soil containing tubular pores cannot be obtained. If there are more tubular pores in the cohesive soil, the soil structure will be changed and the permeability will also be changed. In order to confirm the permeability of cohesive soil containing tubular pores, some indoor and outdoor permeability test methods were adopted. Through repeated comparison and analysis, it was observed that the permeability grade was mostly medium, which was obviously larger than that in the general sense. Its permeability had directionality. The results of pumping test show that the permeability in vertical direction is much greater than that in horizontal direction.
- Publication
Yellow River, 2019, Vol 41, Issue 5, p154
- ISSN
1000-1379
- Publication type
Article
- DOI
10.3969/j.issn.1000-1379.2019.05.031