Statistical analysis of experimentally determined critical hydraulic gradients for heave
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F20%3APU136827" target="_blank" >RIV/00216305:26110/20:PU136827 - isvavai.cz</a>
Result on the web
<a href="https://www.icevirtuallibrary.com/doi/full/10.1680/jgele.19.00054" target="_blank" >https://www.icevirtuallibrary.com/doi/full/10.1680/jgele.19.00054</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1680/jgele.19.00054" target="_blank" >10.1680/jgele.19.00054</a>
Alternative languages
Result language
angličtina
Original language name
Statistical analysis of experimentally determined critical hydraulic gradients for heave
Original language description
Heave is a type of deformation that occurs due to seepage, which may evolve into backward erosion piping and eventually lead to the total collapse of a hydraulic structure. It may occur downstream of the hydraulic structure when uniform non-cohesive soil is subjected to upward seepage. In this study, the limit state condition for heave was formulated based on the equilibrium of acting forces and with the use of corresponding partial factors. During extensive laboratory research, glass beads of 0·2, 0·5 and 1·0 mm in diameter, three natural and three artificially prepared sands with grain diameters ranging from 0 to 4 mm and a uniformity coefficient CU ranging from 1·4 to 5 were subjected to upward seepage in cylindrical permeameter. The hydraulic gradient was gradually raised until heave of the material occurred. The porosity of specimens varied from 0·31 to 0·54 according to the method of placement and compaction degree. In total, 425 experiments were carried out. The results were statistically processed for nine sets of materials and partial factors were derived for a selected structure reliability. The values obtained for the factors may be used by practitioners during the safety assessment of the hydraulic structures exposed to potential heave.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geotechnique Letters
ISSN
2049-825X
e-ISSN
2045-2543
Volume of the periodical
10
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
377-384
UT code for WoS article
000590269700043
EID of the result in the Scopus database
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