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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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Presentation Transcript
retaining walls
Hanses retaining walls
gravity dam
Hanses retaining walls
calculation of the earth pressure
Hanses retaining walls
calculation of the earth pressureformula of Müller Breslau
Hanses retaining walls
calculation of the earth pressureretaining wall with a sharp bend in the back wall
Hanses retaining walls
calculation of the earth pressureretaining wall with a console in the back wall
earth pressure
g×Kagh
j
Ja
Hanses retaining walls
calculation of stability of retaining wall
Hanses retaining walls
stability against overturningfor dead load + traffic load
RV
R
eb
c
b
sR
3c
soil pressure
Hanses retaining walls
calculation of the force of the base failure
Hanses retaining walls
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 walls
Hanses retaining walls
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
- angular retaining wall with cross shear walls
Hanses retaining walls
reinforcement in a angular retaining wall
Hanses retaining walls
calculation of earth pressurewith real sliding lines
Monolith2
a
Eagr
Eagl
da
h
Monolith1
Ja
Ja´
Hanses retaining walls
calculation of earth pressurewith theoretical backside
b
theoretical backside
G3
G1
Eag
R
h
da
G2
Hanses retaining walls
calculation of stability
Hanses retaining walls
stability against overturningfor dead load + traffic load
RV
R
eb
c
b
sR
3c
soil pressure
Hanses retaining walls
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
calculation of internal forcessurveillance
N´
M´
Q´´´
Q´
M´´´
M´´
G
N´´
N´´´
Rs2
Q´´
sL
sR
P1
P2
Hanses retaining walls
retaining walls
Hanses retaining walls
