A large-scale trial embankment provided with partially penetrating prefabricated vertical drains (PVD) was installed in consolidating marine clay deposits at East-Port said industrial zone project Egypt. The constructed a bottom area of 150x150m and height 5.5m to evaluate the efficiency improvement system verify design parameters. An intensive instrumentation built-up including shallow settlem...

Abstract Backward erosion piping is driven by seepage forces acting on the soil grains at downstream end of path. A new device for laboratory testing backward progression was developed and tested. The consists a plexiglass prism which path has been predefined. equipped with an inflow consisting gravel separated from tested sand strainer. hydraulic gradient along pipe observed set piezometers pr...

Landslides in sensitive post-glacial marine clays are one of the major geological hazards Canada, Norway and Sweden. Current hydrogeological conceptual models used for slope stability analyses these deposits consider simple groundwater flow conditions within a homogenous, isotropic, massive clay deposits, where fractures surficial features that only exist 1–5 m-thick weathered zone. This study ...

The purpose of the study was to analyze foundation's filtration strength and HPP building's shear stability after 38 years operation as part Tuyamuyun hydroelectric complex on Amudarya River. analysis carried out based field data obtained with help 16 piezometers installed in two alignments within block building vertical drainages grassland. constructed graphs water pressure fluctuations coinci...