Studying Hydraulic Failure in Excavations Using Two-phase Material Point Method

The head difference between the inside and outside of an excavation leads to seepage flow into the excavation. High seepage velocities lead to high seepage pressures that decrease the effective stresses. In extreme cases, the soil fluidizes and cannot sustain the seepage forces, which causes the soi...

Full description

Saved in:
Bibliographic Details
Published in:Procedia engineering 2017, Vol.175, p.250-257
Main Authors: Fatemizadeh, Farzad, Stolle, Dieter F., Moormann, Christian
Format: Article
Language:English
Subjects:
excavations
failure
material point method
seepage forces
soil-water interaction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The head difference between the inside and outside of an excavation leads to seepage flow into the excavation. High seepage velocities lead to high seepage pressures that decrease the effective stresses. In extreme cases, the soil fluidizes and cannot sustain the seepage forces, which causes the soil-water mixture to flow into the excavation site. The problem of hydraulic failure is simulated using the Material Point Method (MPM). The ability of MPM to simulate this phenomenon is shown and some concluding remarks are presented.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2017.01.020