Reinforced Soil Structures by Prof.E.Saibaba Reddy & Eadala Rakesh Reddy

1. REINFORCED SOIL STRUCTURES
Prof. E.Saibaba Reddy
B.Tech, M.E.(Hons) Roorkee, Ph.D (Nottingham, UK)
Post Doc,(Halifax Canada), Post Doc (Birmingham UK)
&
Eadala Rakesh Reddy
B.Tech (JNTUH), M.Tech (VSSUT-Gold Medal),
(Ph.D)- Andhra University-DST-Inspire Fellow
Chief Consultant –EE Engineering Construction Services
1

2. NEED FOR RETAINING WALLS
2

3. TYPES OF RETAINING WALLS
3

4. TYPES OF RETAINING WALLS
4

5. SOME EARLY CONCEPTS
5

6. SOME EARLY CONCEPTS
6

7. CONVENTIONAL RETAINING WALLS
7

8. SOIL NAILING AND SECANT PILING
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9. SOIL NAILING (DESIGN)
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10. SOIL NAILING (DESIGN)
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11. SOIL NAILING (DESIGN)
11

12. SOIL NAILING
12

13. SOIL NAILING
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14. BASIC PRINCIPLE OF REINFORCED SOIL
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15. COMPONENTS OF REINFORCED SOIL
RETAINING WALLS
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16. TYPES OF WALL FACINGS IN REINFORCED
SOIL WALLS
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17. DIFFERENT TYPES OF REINFORCEMENT
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18. COST COMPARISON
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19. DIFFERENCES BETWEEN REINFORCED SOIL
WALLS AND CONVENTIONAL WALLS
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20. DIFFERENT TYPES OF WALL
CONFIGURATIONS
20

21. DIFFERENT TYPES OF WALL
CONFIGURATIONS
21

22. DIFFERENT TYPES OF RETAINING WALLS
BUILT IN INDIA
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23. 23

24. SCHEMATIC OF CONSTRUCTION PROCEDURE OF
FULL HEIGHT PANEL WALL
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25. 25

26. 26

27. 27

28. DIFFERENTIAL SETTLEMENT OF APPROACH
ROAD
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29. DIFFERENTIAL SETTLEMENT
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30. 30

31. 31

32. 32

33. 33

34. 34

35. 35

36. 36

37. 37

38. 38

39. 39

40. 40

41. CODES AND DESIGN STANDARDS FOR THE
REINFORCED SOIL RETAINING WALLS
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42. MAJOR DIFFERENCES BETWEEN BS 8006 &
FHWA
42

43. SUITABLE TYPE OF BACKFILL SOILS
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44. SHEAR STRENGTH PROPERTIES
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45. LATERAL EARTH PRESSURES
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46. RANKINE LATERAL EARTH PRESSURES
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47. RANKINE’S THEORY – SLOPED FILL
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48. COULOMB'S EQUATION
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49. DESIGN LOADS
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50. EXTERNAL STABILITY CALCULATIONS
50

51. 51

52. 52

53. 53

54. 54

55. LOAD COMBINATIONS IN BS 8006
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56. 56

57. FORCES IN REINFORCED SOIL DUE TO
BRIDGE ABUTMENT
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58. FORCES IN REINFORCEMENT LAYERS DUE TO
HORIZONTAL LOAD
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59. FORCE TRANSFERRED TO REINFORCEMENT
LAYERS
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60. PEAK REINFORCEMENT FORCES & THE LOCATION
OF THE INTERNAL RUPTURE SURFACE
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61. 61

62. 62

63. 63

64. INTERNAL RUPTURE PLANES
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65. TYPICAL FACTORS OF SAFETY
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66. BEARING CAPACITY OF SHALLOW
FOUNDATIONS SUPPORTED ON
REINFORCED SOILS
Prof. E.Saibaba Reddy
B.Tech, M.E.(Hons) Roorkee, Ph.D (Nottingham, UK)
Post Doc,(Halifax Canada), Post Doc (Birmingham UK)
&
Eadala Rakesh Reddy
B.Tech (JNTUH), M.Tech (VSSUT-Gold Medal),
(Ph.D)- Andhra University-DST-Inspire Fellow
Chief Consultant –EE Engineering Construction Services
66

67. 67

68. REQUIREMENTS OF A GOOD FOUNDATION
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69. SOIL FAILURE DUE TO LOADING FROM STRIP
FOOTING
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70. TYPES OF BEARING CAPACITY FAILURES
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71. SHALLOW FOUNDATIONS
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72. 72

73. 73

74. 74

75. 75

76. 76

77. 77

78. 78

79. NON-DIMENSIONAL PARAMETERS
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80. 80

81. 81

82. 82

83. 83

84. 84

85. FACTORS TO BE CONSIDERED
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86. POSSIBLE MODES OF FAILURE
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87. BASIC GUIDELINES
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88. Prof. E.Saibaba Reddy
B.Tech, M.E.(Hons) Roorkee, Ph.D (Nottingham, UK)
Post Doc,(Halifax Canada), Post Doc (Birmingham UK)
&
Eadala Rakesh Reddy
B.Tech (JNTUH), M.Tech (VSSUT-Gold Medal),
(Ph.D)- Andhra University-DST-Inspire Fellow
Chief Consultant –EE Engineering Construction Services
88

89. BRIEF HISTORY OF MSE WALLS IN INDIA
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90. 90

91. 91

92. OBJECTIVES OF THE CONSTRUCTION
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93. DIFFERENT OPTIONS CONSIDERED
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94. ANTICIPATED PROBLEMS
94

95. 95

96. REASONS FOR THE CHOICE
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97. SITE CONDITIONS
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98. ADOPTED SYSTEM
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99. REINFORCEMENT USED
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100. DESIGN
100

101. PIGGY-BACK WALLS
101

102. ADDITIONAL STRESS ON BOTTOM WALL AS
PER FHWA GUIDELINES
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103. 103

104. 104

105. 105

106. 106

107. 107

108. 108

109. 109

110. 110

111. 111

112. WALL DURING CONSTRUCTION
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113. 113

114. 114

115. 115

116. 116

117. 117

118. 118

119. 119

120. 120

121. 121

122. 122

123. CONCLUSIONS
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124. 124