Detail publikace

Pressure conditions in the hole erosion test

ŘÍHA, J. JANDORA, J.

Originální název

Pressure conditions in the hole erosion test

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The hole erosion test (HET) is used in the study of soil erosion in the case of what is known as "piping" when concentrated leaks occur. The HET anables the determination of soil erosion characteristics such as the critical shear stress along the pre-formed hole (pipe) and the coefficient of soil erosion. Normally, in the HET, the hydraulic gradient is determined from the difference between the piezometric heads measured at the inflow and outflow chambers (upstream and downstream of the soil specimen). Hydraulic analysis shows that such measurements ingnore losses at the entrance and exit of the hole, causing the overstimation of the hydraulic gradient along the lenght of the hole, and thus the calculated shear stress.

Klíčová slova

hole erosion test; HET; hydraulic gradient; piping; shear stress; Bernoulliho principle; turbulent flow modelling

Autoři

ŘÍHA, J.; JANDORA, J.

Rok RIV

2015

Vydáno

6. 1. 2015

Nakladatel

Canadian Science Publishing

Místo

Ottawa, Canada

ISSN

1208-6010

Periodikum

Canadian Geotechnical Journal

Ročník

52(1)

Číslo

1

Stát

Kanada

Strany od

114

Strany do

119

Strany počet

6

BibTex

@article{BUT112810,
  author="Jaromír {Říha} and Jan {Jandora}",
  title="Pressure conditions in the hole erosion test",
  journal="Canadian Geotechnical Journal",
  year="2015",
  volume="52(1)",
  number="1",
  pages="114--119",
  doi="10.1139/cgj-2013-0474",
  issn="1208-6010"
}