RE WALL Design as Per Irc 102

 Calculations for Reinforced Title

Hand Calculations for modular block wall of height 10.75 m

Reference

BS 00!"1#$010

%ate # %esigned b&# Checked b& # '((ro)ed b& # %esign *n(ut +arameters Reinforced Soil Data

'ngle of *nternal friction ᶲ1 -nit wt

1

,$ ° 1.5 k/cu.m

Retained Backfill Soil Data

,0 °

'ngle of *nternal friction ᶲ$ -nit wt

1.5 k/cu.m

Foundation Soil Data

Cohesion

0 k+a

'ngle of *nternal riction ᶲ,

,02

-nit wt

1.5 k/cu.m

Crash Barrier Data

Stri( load due to crash barrier 3

15.45 k+a

i)e oad 3l

$, k+a

i)e oad should be considered as (er (ro)isions of *RC#7"$014 6ater table is considered below the influence one. 8eneral Shear ailure is considered.

COMPUTATO! OF "#T"R  10.75 m H*8H 6' B ST'T*C '/'S*S

Coefficient of acti$e earth %ressure (k a)&

or reinforced soil#

ka 9 :l"si :l"sin nᶲ;:l< ;:lf

1

kN/m3

oundation (ro(erties #

Su''ar of %artial factors to e used

+artial factors

to be a((lied tan0? Soil material factors #

to be a((lied C to be a((lied Cu Sliding across surface of reinforcement :fs;

Soilreinforcement interaction factors

+ullout resistance of reinforcement :f(; oundation bearing ca(acit& # to be a((lied +artial factors of safet&

Sliding along base of the structure or an& horiontal surface where there is soil"soil contact

Partial load factors for load co'inations associated *ith *alls

A

@ffects

=ass of the reinforced soil bod& :ffs; =ass of the backfill on to( of the reinforced soil wall :ffs; @arth (ressure behind the structu:ffs; Traffic load# An reinforced soil b:f; Behind reinforced soil block

:f;

1.5

51

*RC#S+#10$"$014 C'S@ #'

A'%S Self weight of Reinforced Soil 6all e)er  >9 iDHDDff5 9 1.5D10.75D7.!D1.5

k/m

9

$$!7.1 k/m

Stri( load due to Crash Barrier  >$

'rm

9 3 F bDfts

E*

9

,.

width of the Stri( oad >$

9 15.5D1.!D1.5

k/m

9

,7.0 k/m

b9

1.!

E$

9

0.

E,

9

,.

3l

D H D ffs

>ertical load due to i)e oad

>,

9 3l F Dffs 9 $,D7.!D1.5

k/m

"

$!$.$ k/m

Resultant >ertical oad R) 9 >1$, 9

$5!!.45 k/m

Horiontal orces

@arth (ressure behind reinforced soil block  +i " 1$ D ka$

D)$ D H$Dffs

9 0.5D0.,,,D1.5D10.75D10.75D1.5 9

5,4.$$ k/m

@arth +ressure due to i)e oad #

+$ 9 ka$ D

9 0.,,,D$,D10.75D1.5 "

1$,.5! k/m

Check for Sliding along the base

C'S@GB or long term stabilit& where there is soil to soil contact at the base of 

the structure fsRh R):tan0?(fms; 9 >iDHD 9

14,.,, k/m

>ertical load due to stri( load 3F b >$

9

$4.7$ k/m

>ertical load due to li)e load >

9 3M F  174. k/m

Horiontal orces +a 9 1$ D ka$D)$D H$ 9

,4,.0$ k/m

4; @.+ due to  +$ 9 ka$ D 3I D H

Check for internal Sliding

Calculation for bottom la&er of 8eogrid or long term stabilit& where the contact at the  base of the structure

fsRh R):a1Dtan0?(fmN;