*HEADING
[] COUPLED PORE-DISPLACEMENT (C3D20P) (NO SLIDING)
*RESTART,WRITE
*NODE,nset=nall
**
********
**
**
*NSET,NSET=BOTTOM
*NSET,NSET=TOP
*ELEMENT, TYPE=C3D20P, ELSET=SOLID
*SOLID SECTION, ELSET=SOLID, MATERIAL=SOLMAT
*MATERIAL, NAME=SOLMAT
*ELASTIC
30.E6,0.0
*PERMEABILITY
 1.E-4,
*DENSITY
  1.4142,
*SURFACE INTERACTION, NAME=GAP
*SURFACE BEHAVIOR, AUGMENTED
** surfaces
**
*surface, NAME=ASURF
1, S3
*surface, NAME=BSURF
2, S5
*CONTACT PAIR, INTERACTION=GAP
ASURF, BSURF
**
*INITIAL CONDITIONS,TYPE=RATIO
NALL,1.
**
*STEP
*SOILS, CONSOLIDATION
*BOUNDARY
BOTTOM,1,3
TOP,1,1
TOP,3,3
BOTTOM,8,8,1
TOP,8,8,2
NALL,1,1
NALL,3,3
*DLOAD
1,P5,10
*CONTACT PRINT,F=10
PFL,PFLA,PTL,PTLA
TPFL,TPTL
**
*CONTACT FILE,F=10
CAREA,
PFL, PFLA, PTL, PTLA
TPFL,TPTL
*NODE PRINT,F=10
POR,
*NODE FILE,F=10
POR,
*EL PRINT, F=0
*END STEP