ABSTRACT
Tf= cd + a' tan ¢d (kN/m2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (5 . 1 ) Where : Tf : shear strength of the treated soil a' : effective normal stress Cd, ¢d : cohesion and angle of shear resistance obtained from consolidated
drained triaxial compression test 4 . The earth pressure acting on the wall surface from the treated ground is calculated by the method in Section 5 .2 .3 . 5 . The improvement range is detennined by studying stability on sliding, overturning, bearing failure . etc . of the structure. And, because it is assumed that the treated ground has a rigidity greater than that of the untreated ground
the structure is studied.
