Analytical solutions of pore-water pressure distributions in a vegetated multi-layered slope considering the effects of roots on water permeability - Details

author：

Liu, H. W. (Liu, H. W..) ^[1] (Scholars：刘红位) | Feng, S. (Feng, S..) ^[2] (Scholars：冯嵩) | Garg, A. (Garg, A..) ^[3] | Ng, C. W. W. (Ng, C. W. W..) ^[4]

Indexed by：

EI Scopus SCIE

Abstract：

New　analytical　solutions　of　pore-water　pressure　(PWP)　distributions　in　a　vegetated　multi-layered　slope　are　derived　considering　the　effects　of　roots　on　water　permeability.　PWP　distributions　are　significantly　affected　by　root-induced　reductions　in　water　permeability　due　to　increases　in　the　root　volume　ratio　(R-v).　Under　drying　conditions,　negative　PWP　increases　with　R-v.　The　negative　PWP　induced　by　root　water　uptake　increases　with　the　desaturation　coefficient　(alpha(i))　or　the　ratio　of　the　transpiration　rate　to　saturated　water　permeability　(T-p/k(si))　As　the　overall　water　permeability　underneath　the　vegetation　layer　decreases,　the　negative　PWP　induced　by　root　water　uptake　increases.

Keyword：

Analytical solutions Multi-layered Pore-water pressure Root water uptake Vegetated slopes Water permeability

Community：

[ 1 ] [Liu, H. W.]Fuzhou Univ, Coll Environm & Resources, Fuzhou, Fujian, Peoples R China
[ 2 ] [Liu, H. W.]Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China
[ 3 ] [Feng, S.]Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China
[ 4 ] [Ng, C. W. W.]Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China
[ 5 ] [Feng, S.]Fuzhou Univ, Coll Civil Engn, Fuzhou, Fujian, Peoples R China
[ 6 ] [Garg, A.]Shantou Univ, Dept Civil & Environm Engn, Shantou, Peoples R China