ABSTRACT
Hansen (1970) extended the work of Meyerhof by including in Eq. (12.27) two additional factors to take care of base tilt and foundations on slopes. Vesic (1973, 1974) used the same form of equation suggested by Hansen. All three investigators use the equations proposed by Prandtl (1921) for computing the values of N
e and Nq wherein the foundation base is assumed as smooth with the
angle a = 45° + ep/2 (Fig. 12.6). However, the equations used by them for computing the values of Ny are different. The equations for N
e , Nq and Ny are
N = e"tanf/JNq f/J N
Table 12.2 The values of Net Nqt and Meyerhof (M), Hansen (H) and Vesic (V) Ny Factors
