Geotechnical Engineering

DHARM 500 GEOTECHNICAL ENGINEERING Cohesion along the wall face or adhesion between the wall and the fill, Ca. Cohesion along t ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 501 Either the trial wedge approach or Culmann’s approach may be u ...

DHARM 502 GEOTECHNICAL ENGINEERING the concept of wall friction. In Rankine’s theory, plastic equilibrium inside a semi- infinit ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 503 Small batter Backfill Large batter Body of wall Base To e Heel ...

DHARM 504 GEOTECHNICAL ENGINEERING Stem Backfill Base slab Toe slab To e Heel Foundation soil Reinforcements Heel slab Fig. 13.4 ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 505 Buttress Retaining Wall This type is similar to the Counterfor ...

DHARM 506 GEOTECHNICAL ENGINEERING P Active earth thrusta Large batter Weight W To e Heel Passive resistance Pp Sliding resistan ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 507 convenience in design, however, Pa is resolved into its horizo ...

DHARM 508 GEOTECHNICAL ENGINEERING ∴ x = (Wx 1 + Pav.x 2 + Pah.z 1 – Ppv.b – Pph.z 2 )/N = Σ Σ M V ...(Eq. 13.71) *e = (~/)xb^2 ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 509 smin b/3 b/3 b/3 N R smax b/3 b/3 b/3 N R smax (i) e < b/6 ...

DHARM 510 GEOTECHNICAL ENGINEERING (c) If the friction angle between the material of the base of the wall and the foundation soi ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 511 this case is known to be triangular as shown by the straight l ...

DHARM 512 GEOTECHNICAL ENGINEERING Suppose, however, that the wall, starting from the at-rest condition, yields outward by horiz ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 513 the arching active case but not the totally active case. In th ...

DHARM 514 GEOTECHNICAL ENGINEERING passive earth resistance plays a major role. Coulomb’s theory with curved rupture surfaces, s ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 515 Depth, H = 3 m γ φ = =° U V W 20 kN / m^3 for sand fill with l ...

DHARM 516 GEOTECHNICAL ENGINEERING Active pressure at base of wall = Ka. γH = 125 125 −°17 7 12 +° sin ×× sin . = 86.2 kN/m^2 Th ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 517 φ = 45° Ka = 145 145 −° 0172 +° sin = sin .; Kp =^145 145 +°5 ...

DHARM 518 GEOTECHNICAL ENGINEERING Total active thrust per lineal metre of wall, Pa = Area of pressure distribution diagram = 1 ...

DHARM LATERAL EARTH PRESSURE AND STABILITY OF RETAINING WALLS 519 Total passive resistance per metre run of the wall Pp = 1 2 1 ...