Values of the Modulus of Subsoil Reaction Ep

Values of the modulus of subsoil reaction E_p = k_h [MN/m³]

Soil	E_p Min/Max [MN/m³]	Average value k_h= E_p[MN/m³]
soft clay	2 - 5	3.5
stiff clay	3 - 8	5.5
solid clay	6 - 16	11
sand naturally wet loose	6 - 13	9.5
sand naturally wet medium dense	20 - 40	30
sand naturally wet dense	45 - 90	67.5
sand aquiferous loose	4 - 8	6
sand aquiferous medium dense	10 - 20	15
sand aquiferous dense	30 - 60	45
sandy clay soft	3 - 6	4.5
sand clay stiff	5 - 9	7
sandy clay solid	8 - 17	12.5
clayey sand wet loose	4 - 9	6.5
clayey sand wet medium dense	12 - 32	22
clayey sand wet dense	24 - 44	34
clayey sand aquiferous loose	3.5 - 6.5	5
clayey sand aquiferous medium dense	7 - 11	9
clayey sand aquiferous dense	11.5 - 13.5	12.5

GEO5