Parametric Studies on the Behaviour of Reinforced Soil Retaining

More documents

Recommendations

Info

2.5 Behaviour of Reinforced Soil Structures ......................................................... 16 2.5.1 Vertical and Horizontal Soil Stress Distribution.......................................... 17 2.5.2 Forces in Reinforcements ............................................................................... 18 2.5.3 Horizontal Displacement ................................................................................ 19 2.5.4 The Role of Face Rigidity ............................................................................... 20 2.6 Typical Current Design Methods ..................................................................... 21 2.6.1 Force Equilibrium Methods ........................................................................... 22 2.6.1 Slope Stability Methods .................................................................................. 24 2.6.3 Failure Modes .................................................................................................. 28 2.7 Finite Elements Analysis.................................................................................... 29 CHAPTER 3 ............................................................................................................. 32 ANALYSIS USING MODELING SOFTWARE .................................................. 32 3.1 Overview of Plaxis Software ............................................................................. 32 3.2 Numerical Analysis for Appropriate Load and Geometry .......................... 34 3.2.1 General Information on the Model ................................................................ 34 3.2.2 Geotechnical Parameters and Design Methods ............................................ 34 3.3 Numerical Analysis for Appropriate Geogrids Stiffness .............................. 39 3.3.1 General Information on the Model ................................................................ 39 3.3.2 Geotechnical Parameters and Design Methods ............................................ 40 viii
CHAPTER 4 ............................................................................................................. 46 RESULTS AND DISCUSSION .............................................................................. 46 4.1 Numerical Analysis for Appropriate Load and Geometry ............................ 46 4.1.1 The First Analysis ........................................................................................... 46 4.1.2 The Second Analysis ....................................................................................... 47 4.1.2.1 Load-Displacement Variation of Reinforced Soil Retaining Wall for Loose Sand ................................................................................................................ 47 4.1.2.2 Load-Displacement Variation of Reinforced Soil Retaining Wall for Dense Sand ................................................................................................................ 50 4.1.2.3 Load-Displacement Variation of Reinforced Soil Retaining Wall for Silty Sand ........................................................................................................................... 51 4.1.2.4 Load-Displacement Variation of Reinforced Soil Retaining Wall for Clayey Sand .............................................................................................................. 52 4.1.2.5 Spacing Displacement Variation of Reinforced Soil Retaining Wall for Loose Sand ................................................................................................................ 53 4.1.2.6 Spacing Displacement Variation of Reinforced Soil Retaining Wall for Dense Sand ................................................................................................................ 54 4.1.2.7 Spacing Displacement Variation of Reinforced Soil Retaining Wall for Silty Sand .................................................................................................................. 55 4.1.2.8 Spacing Displacement Variation of Reinforced Soil Retaining Wall for Clayey Sand .............................................................................................................. 56 4.1.2.9 Comparison of Displacement for Different Soil Cases under the Same Arrangement of Geogrids Spacing 0.5m and Applied Load of 20KN/m ............ 57 ix
Page 1 and 2: Parametric <strong
Page 3 and 4: ACKNOWLEDGEMENT This study was carr
Page 5 and 6: Tensile Force of the Soil Reinforce
Page 7: TABLE OF CONTENTS CHAPTER 1 .......
Page 11 and 12: CHAPTER 5 .........................
Page 13 and 14: epresented the lowest cost for all
Page 15 and 16: EEAR Shake 91 for modelling and ana
Page 17 and 18: embankments, soil slopes, and paved
Page 19 and 20: CHAPTER 2 DEVELOPMENT OF REINFORCED
Page 21 and 22: The first reinforced soil retaining
Page 23 and 24: (a) (b) Figure 2.4: Applications of
Page 25 and 26: also used. The corrosion rate of th
Page 27 and 28: Enhanced Cohesion Concept Chapius (
Page 29 and 30: (a) At Wall Face (b) At Back of Rei
Page 31 and 32: 2.5.4 The Role of Face Rigidity Cur
Page 33 and 34: their application typically introdu
Page 35 and 36: 2.6.2 Slope Stability Methods Many
Page 37 and 38: Formula (d): ∑[ ∑ ] Formula (e)
Page 39 and 40: 2.6.3 Failure Modes Sometimes sever
Page 41 and 42: General Philosophy of FEM Finite el
Page 43 and 44: CHAPTER 3 ANALYSIS USING MODELLING
Page 45 and 46: When subsequently clicking on the o
Page 47 and 48: Model-3 Figure 3.4: Reinforced Eart
Page 49 and 50: Model-1 Figure 3.7: Reinforced Eart
Page 51 and 52: Table 3.9: Model Dimensions Min. Ma
Page 53 and 54: Table 3.13: Geotextiles Data Parame
Page 55 and 56: It should be noted that these spect
Page 57 and 58: CHAPTER 4 RESULTS AND DISCUSSION 4.
Page 59 and 60:
Figure 4.3: Horizontal Displacement
Page 61 and 62:
Displacements (mm) the one obtained
Page 63 and 64:
Displacements (mm) 4.1.2.4 Load-Dis
Page 65 and 66:
The detailed results of displacemen
Page 67 and 68:
Remarks: This Figure shows that bot
Page 69 and 70:
4.1.2.10 Displacement Variation of
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Figure 4.23: Horizontal displacemen
Page 77 and 78:
The values of the bending moments o
Page 79 and 80:
The detailed results of displacemen
Page 81 and 82:
Figure 4.31: DEM Model (Bhandari an
Page 83 and 84:
displacements (*10eE-1 mm) -60 -55
Page 85 and 86:
fundamental period of vibration whi
Page 87 and 88:
displacements (*10eE-1 mm) -60 -55
Page 89 and 90:
Geogrids prices obtained from other
Page 91 and 92:
5.1 Conclusion CHAPTER 5 CONCLUSION
Page 93 and 94:
REFERENCES Allen, T.M., Bathurst, R
Page 95 and 96:
Jewell, R.A. (1988) “Reinforced S
Page 97 and 98:
Saad, B., Mitri, H. and Poorooshasb
Page 99 and 100:
APPENDICES APPENDIX-1 Figure 1.1: D
Page 101 and 102:
Acceleration (g) 0.2 0.15 0.1 0.05
Page 103 and 104:
Section A-A’ Figure 2.6: Deformed
Page 105 and 106:
94 Table 2.1: Detailed Values of Di
Page 107 and 108:
96 Node x-coord. y-coord. dUx Ux dU
Page 109 and 110:
98 Node x-coord. y-coord. dUx Ux dU
Page 111 and 112:
100 Node x-coord. y-coord. dUx Ux d
Page 113 and 114:
Node x-coord. y-coord. Nx no. [m] [
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121:
show all

Parametric Studies on the Behaviour of Reinforced Soil Retaining

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?