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Construction and Design of Retaining Walls. Prof. Dr.-Ing. Ullrich Hanses FH Coburg /Germany. retaining walls. gravity dam. gravity dam from limstone without mortar. gravity dam. wall of Lauenstein Castle in the Franconia region . gravity dam. gravity dam. low retaining wall.

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construction and design of retaining walls

Construction and Design of Retaining Walls

Prof. Dr.-Ing. Ullrich Hanses

FH Coburg /Germany

retaining walls
retaining walls

Hanses retaining walls

gravity dam
gravity dam
  • gravity dam from limstone without mortar

Hanses retaining walls

gravity dam4
gravity dam
  • wall of Lauenstein Castle in the Franconia region

Hanses retaining walls

gravity dam5
gravity dam

Hanses retaining walls

gravity dam6
gravity dam
  • low retaining wall

Hanses retaining walls

gravity dam7
gravity dam
  • high retaining wall

Hanses retaining walls

gravity dam8
gravity dam
  • wall with console

Hanses retaining walls

gravity dam9
gravity dam
  • underpinning

Hanses retaining walls

gravity dam10
gravity dam
  • underpinning of a wall of a factory

Hanses retaining walls

construction details
construction details
  • expansion joint

Hanses retaining walls

construction details12
construction details
  • construction joint between foundation and the wall

Hanses retaining walls

d rain
drain
  • drain with gravel

Hanses retaining walls

d rain14
drain
  • drain with synthetic materials

Hanses retaining walls

calculation of the earth pressure
calculation of the earth pressure

Hanses retaining walls

calculation of the earth pressure retaining wall with a sharp bend in the back wall
calculation of the earth pressureretaining wall with a sharp bend in the back wall

Hanses retaining walls

calculation of the earth pressure retaining wall with a console in the back wall
calculation of the earth pressureretaining wall with a console in the back wall

earth pressure

g×Kagh

j

Ja

Hanses retaining walls

stability against overturning for dead load
stability against overturningfor dead load

RV

R

eb

b

sL

sR

soil pressure

Hanses retaining walls

stability against overturning for dead load traffic load
stability against overturningfor dead load + traffic load

RV

R

eb

c

b

sR

3c

soil pressure

Hanses retaining walls

stability against sliding
stability against sliding

R

RV

Epghr

RH

RS

Hanses retaining walls

stability against base failure
stability against base failure

dS

R

RV

RH

d

g1

eb

g2, j´, c

2eb

b

Hanses retaining walls

stress in the wall
stress in the wall
  • If the distance eb between the resultant R and the centroidal axis within the wall is less than b/6 there is only compressive stress in the wall

R

eb

b

sR

sL

eb£b/6

Hanses retaining walls

retaining walls26
retaining walls

Hanses retaining walls

retaining wall
retaining wall
  • small retaining wall with piers

Hanses retaining walls

retaining wall28
retaining wall
  • high retaining wall with facing bricks

Hanses retaining walls

principle of statics of the angular retaining wall
principle of statics of the angular retaining wall

R

ballast

G1

Eag

buttresses

GE

theoretical back side of the wall

G2

Hanses retaining walls

different types of angular retaining walls
different types of angular retaining walls
  • normal angular retaining wall

Hanses retaining walls

different types of angular retaining walls31
different types of angular retaining walls
  • angular retaining wall with cross shear walls

Hanses retaining walls

different types of angular retaining walls32
different types of angular retaining walls
  • retaining wall with pile foundation

Hanses retaining walls

calculation of earth pressure with real sliding lines
calculation of earth pressurewith real sliding lines

Monolith2

a

Eagr

Eagl

da

h

Monolith1

Ja

Ja´

Hanses retaining walls

calculation of earth pressure with theoretical backside
calculation of earth pressurewith theoretical backside

b

theoretical backside

G3

G1

Eag

R

h

da

G2

Hanses retaining walls

c alculation of stability
calculation of stability

Hanses retaining walls

s tability against overturning for dead load
stability against overturningfor dead load

RV

R

eb

b

sL

sR

soil pressure

Hanses retaining walls

s tability against overturning for dead load traffic load
stability against overturningfor dead load + traffic load

RV

R

eb

c

b

sR

3c

soil pressure

Hanses retaining walls

s tability against sliding
stability against sliding

RV

R

Epghr

RH

RS

Hanses retaining walls

s tability against base failure
stability against base failure

solution see page 21

dS

RV

R

d

g1

RH

eb

g2, j, c

2eb

b

Hanses retaining walls

c alculation of internal forces cut off of the earth monolith
calculation of internal forcescut off of the earth monolith

b

b/2

b/2

eaghu

according

German

DIN 4085

eaghd= 2 eaghu

e

E1

Eaghr

E1

GB

E2

E2

Eaght

RBv

eaghd

RBv

RBh

RBh

e

Hanses retaining walls

c alculation of internal forces cut 1 1
calculation of internal forcesCut 1-1

G1

E1

E2

1

1

Hanses retaining walls

c alculation of internal forces cut 2 2
calculation of internal forcesCut 2-2

y´´

G2

Q´´

M´´

x´´

N´´

Rs1

sL

P1

sR

P2

Hanses retaining walls

c alculation of internal forces cut 3 3
calculation of internal forcesCut 3-3

G3

M´´´

x´´

N´´´

Q´´´

Rs3

y´´´

sL

P1

sR

P2

Hanses retaining walls

c alculation of internal forces surveillance
calculation of internal forcessurveillance

Q´´´

M´´´

M´´

G

N´´

N´´´

Rs2

Q´´

sL

sR

P1

P2

Hanses retaining walls

water pressure additional forces
water pressure (additional forces)

G1

G2

WL

WR

S1

S2

Hanses retaining walls

retaining walls47
retaining walls

Hanses retaining walls

special cases
special cases
  • retaining wall with anchors

Hanses retaining walls

special cases49
special cases

wire baskets filled with stones or earth in geotextile

Hanses retaining walls

special cases50
special cases
  • wall from eath, wire and geotextile

Hanses retaining walls