3[1]Goering D J,Kumar P.Permeability Effects on Winter-Time Natural Convection in Gravel Embankments[J].Cold Regions Science and Technology,1996 (24):57.
4[2]Goering D J,Instances A,Knudsen S.Convective Heat Transfer in Railway Embankment Ballast[J].Ground Freezing Technic,2003(15):31.
5[3]Harris S A,Pedersen D E.Thermal Regimes Beneath Coarse Blocky Materials[J].Permafrost and Periglacial Process,1998,3:319.
6[7]Horton C W,Rogers F T,Jr.Convection Currents in a Porous Media[J].J Appl Phys,1945 (16):367.
7[8]Lapwood E R.Convection of a Fluid in a Porous Medium[J].Pro Cambridge Phil Soc,1948(44):508.
8[9]Wooding R A.Steady State Free Thermal Convection of Liquid in a Saturated Porous Medium[J].Fluid Mech,1957(2):273.
9[10]Wooding R A.The Stability of a Viscous Liquid in a Vertical Tube Containing Porous Material[J].Pro Roy Soc A,1959,252:120.
10[11]Wooding R A.Rayleigh Instability of a Thermal Boundary Layer in Flow Through a Porous Medium[J].Fluid Mech,1960(9):183.
