RETAINING WALL DESIGN

HEIGHT OF SOIL TO BE RESISTED, a 2.80 m DEPTH OF SOIL ON TOE SLAB, b 1.28 m

WIDTH OF HEEL SLAB, c 0.70 m WIDTH OF TOE SLAB, d 1.53 m

WIDTH OF STEM, e 0.23 m BASE SLAB DEPTH, f 0.30 m

Vertical load on retaining wall 0.00 kN

OVER BURDEN LOAD 10.00 kN/sqmSBC (kN/sqm) 200.00 kN/sqm

Density of soil(kN/m3) 18.00 kN/cum27.00

0.45fck 20.00 N/mm2fy 415.00 N/mm2

cover 50.00 mmDia of bar 10.00 mm

PRESSURE UNDER BASE SLAB PRESSURE AT STEM BOTTOMTOTAL WEIGHT 76.77 Soil Pressure

Restoring moment 122.00 over burden pressureECCENTRICITY 0.184 Resultant pressure, pH

Corrected e for negative pr. 0.751 Overturning Moment.MoMAXIMUM PRESSURE 51.50 F.S. against over turningMINIMUM PRESSURE 17.35 OK F.S. against sliding

P(max) for calc 51.50 F.S. against over turning W/O OBP(min) for calc 17.35 F.S. against sliding W/O OB

DESIGN OF HEEL SLAB DESIGN OF TOE SLAB

28.07 31.59

13.12 kN.m 8.66 kN.m

Ast, mm2 226.83 Ast, mm2 148.74

weight dist moment weight dist moment

35.28 0.35 12.35 pressure 41.07 0.65 26.70self wt 5.25 0.35 1.84 12.94 0.87 11.22

Angle of repose, øCo-efficient of friction, µ

Pressure on face of heel slab

Pressure on face of toe

Moment at heel face, M3

Moment at toe face, M4

backfill weight

7 0.58 4.06total 37.91

total 47.53 18.259.75 0.65 6.3375

deduction 12.14 0.35 4.25 soil on toe 29.95 0.77 22.913.75 0.23 0.88

15.90 5.13

CHECK FOR STABILITY FOR 1M WIDTH eccentricity calculationWEIGHT DIST MOMENT Z 0.93kN m kN.m no heel 0

Stem,W1 16.10 1.42 22.78 no toe 0W2 16.72 1.12 18.65W3 35.28 1.88 66.33W4 1.66 0.65 1.08OB w5 7.00 1.88 13.16W6 0.00 1.42 0.00total 76.77 122.00

3.36 -1.13

over burden

self wt deduction

RETAINING WALL DESIGN

0.3818.93

K Mu/bd2 100pd 0.75 3.137 0.305K 0.85 0.80 3.188 0.289Mu/bd2 3.24 0.85 3.243 0.276d1 348.78 mm 0.90 3.304 0.264

DESIGN OF STEM18.93 39.45 kN.m

3.76 Ast, mm2 1073.1337.0150.55 1m above base slab

2.41 OK Soil Pr. 12.17 8.790.93 NOT OK Pr. due to over burden 3.76 3.763.33 OK 12.65 kN.m 6.601.18 NOT OK Ast, mm2 311.94 159.72

DEFLECTION OF CANTILEVER

1.710 mm

1.273 mm

Total deflection 2.983 mm

reinforcement calc

kM1 0.555793

BM at stem base, M1

BM, M2

deflection due to soil pressure

deflection due to overburden

M2 0.8575236 0.92568M3 0.924631M4 0.9502444

FS with out over burdenTOTAL WEIGHT 69.77

Restoring moment 108.84horizontal force pH 26.4970303

Overturning Moment.Mo 32.68