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Hydro Power and Pump Storage in the Black Forest 2013
Company: T5
Study case staff:
Amirpasha MozaffariDaniel de Souza Braga
Irfan MahmoodJuliana Zapata Giraldo
Mingze Xu
Introduction
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane.
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
Atlas Reservoir
1150 mAt
las R
eser
voir
670 m
L.M
.P.R
625 m
Hydr
o-Po
wer
Hydropower Plant (UHP)
DHP Toe
400 m
350 m
DHP 2
DHP 1
Low Multi Purpose Reservoir ( L.M.P.R)
Part 1
Introduction
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane.
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
Part 2: Design of Concrete Gravity Dam Topic 2a: Hydraulics • 2.1 Determination of dam-design parameters
such as dam height and length, shape of longitudinal dam-axis, dam-slopes, construction material and foundation depth
• 2.2 Drawings of critical cross section and site plan
• 2.3 Structural investigations such as stability proofs (traditional methods; FEM analysis not required but welcome)
Topic 2b: Structure (My colleague Xu Mingze)
My Task
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane.
3) Stability Proof4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
Parameters
a = 46 m (Height from given levels)
b = 57 m (Width)
c = 5 m (Service Road)
x = 0.788 (chosen from 0.7 – 0.8)
y = 1
L = 400 m
Parameters
Dead Load KN/mWeight 1 (rectangle vertical dam) 5076.675Weight 2 (rectangle foundation) 7548.795Weight 3 (triangle) 23529.285Total Dead Load 36154.755
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane.
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
Water Pressure
Dead Loads
Water Pressure KN/mHorizontal 12757.905Vertical 0Uplift 8806.9275
Loads
Cross-Section
1) Dam Design
Parameters 2) Drawings of
Critical Cross section &Site Plane
3) Stability Proofs4) FEM Results5) Continuation to
Design Flood & Hydraulic Dimensioning
Max. Operation Level: 670 m Freebord: 1 m Lowest Point Dam: 625 m
Foundation Level: 619 m
Site Plan
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
Concrete Properties (A)
-Density: 2.25 g/cm3 = 2250 kg/m3
-Angle of internal friction (φ ): 43.5 º
-Compressive strength: 15.8 N/mm2 = 161 kg/cm2
-Tensile strength: 1.9 N/mm2 = 19.37 kg/cm2
-Degree of join: 0.01
Rock Foundation Properties (A)
-Density: 2.64 g/cm3 = 2640 kg/m3
-Angle of internal friction (φ ): 52.5 º
-Compressive strength: 111.3 N/mm2 = 1134.5 kg/cm2
-Tensile strength: 10 N/mm2 = 101.94 kg/cm2
-Degree of join: 0.03
Given Values
Dimensioning Situations
Overall Safety Factors1) Dam Design
Parameters 2) Drawings of
Critical Cross section &Site Plane
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
Load Case I
Resistance Conditions of Structure = Likely Loadings
Dimensioning Situation = BS I
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
SAFETY AGAINST FLOATING
Force/Load Description Fi (kN)Uplift 8806.928
8806.928
Force/Load Description Fi (kN)Vertical Water Load 0Dead Load 36154.755
36154.76
ηa = 4.11 > 2 4.11
Safety Against Floating
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
SAFETY AGAINST SLIDING
Force/Load Description Fi (kN)Horizontal Water Load 12757.905
Fo 12757.91kN
Force/Load Description Fi (kN)Vertical Water Load (Fw,v,i) 0Dead Load (Gi) 36154.755Uplift (Fup) -8806.928
27347.83tan φ' 1.303
Fr 35640.38kNDegree of Joint (a) 0.25Shear Force of Rock ( c) 22700 kN/mArea of foundation (A) 57.0 m2/m
Frt 359115.4
ηg = 28.15 > 1.5 28.15
Safety Against Sliding
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
SAFETY AGAINST OVERTURNING
Force/Load Description Fi (kN) di (m) Fi*di (kN.m)Horizontal Water Load 12757.905 0
1 (triangle water) 12757.905 17 -216884.385Uplift 8806.928 38 -334663.245
Mo -551547.63
Force/Load Description Fi (kN) di (m) Fi*di (kN.m)Vertical Water Load 0 0 0Weight 1 5076.675 54.5 276678.7875Weight 2 7548.795 28.5 215140.6575Weight 3 23529.285 34.6666667 815681.88
Mr 1307501.325
ηo = 2.37 > 1.5 2.37
Resultant Turning Moment, M'r 755953.695kN.mVerticalResultant, Rv 27347.828kNDistance X 27.642mExcentricity 0.858m 27.64218456
Stress at head water side, σh 436.463kN/m2Stress at tail water side, σt 523.109kN/m2
Fb/3 X 2/3 Fb19 < 27.640 < 38 27.64
e = 0.86 < 9.5 (Fb/6) 0.86
Safety Against Overturning
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane II
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
SAFETY AGAINST ADMISSIBLE BASE PRESSURE
Stress at head water side, σh 436.463476kN/m2
Stress at tail water side, σt 523.109418kN/m2
Admissible Base Pressur, σa 1000kN/m2
σt,h = 523.11 < 1000 523.1094183
Admissible Pressure
1) Dam Design Parameters
2) Drawings of Critical Cross section &Site Plane II
3) Stability Proofs4) Stability Proof
without Water5) Continuation to
Design Flood & Hydraulic Dimensioning
SAFETY AGAINST ADMISSIBLE BASE PRESSURE
Stress at head water side, σh 122.584238kN/m2Stress at tail water side, σt 1146.00366kN/m2
Admissible Base Pressur, σa 1000kN/m2
σt,h = 1000< 1146.01 < 4000 1146.003657
Admissible Pressure w/o water
Recommended