Course Details

AF Academyby AF Academy

Online Training Program on Tunnels & Tunnelling

Online Training Program on Tunnels & Tunnelling

About the Program

Tunnelling is integral to infrastructure development and this online training program aims at imparting an in-depth knowledge pertaining to all aspects of tunnels and tunnelling pertaining to hydro and transport projects at a single platform.

Spanning the entire spectrum from planning to operations & maintenance stages, the program with 100 pre-recorded lectures ensures that each and every aspect like survey & investigation, design, and construction of a tunnel is addressed.

As a unique offering, the program comprises a set of 51 lectures in the Core Segment, addressing aspects of general interest, and allows the participants to choose from the remaining lectures in the Optional Segment depending upon their requirement. With the twice -a-week release of the lectures, interspersed with interactive sessions with the faculty, the training program is designed for a schedule spanning 25-weeks.

Who Should Attend?

This training program shall benefit professionals, engineers, geotechnical engineers and geo- scientists dealing with tunnelling projects. The program shall be of value to owners of the tunnelling projects while hiring services for planning, investigating, designing, constructing, and operating their projects. The participants of the program will be able to contribute and add value in the accelerated and economic development of tunnelling projects.


The program will enable the participant to derive maximum information from investigation program and help them design the right investigation program for a particular project requirement. It will also enable them to choose the right combination of techniques for varied geological conditions. Participants of the program will be able to contribute towards accelerated and economic development of projects.

Core Segment

Module.1: Introduction

1. Introduction to Tunnels

Module.2: Formulating a Project

2. Preliminary appraisal for tunnels

3. Preliminary Geological appraisal for tunnels

4. Selection of options for method of execution –TBM, DBM

Module.3: Survey & investigation

5. Topographical surveys: development of contour plans

6. Development of topographical plans and DTMs using GIS techniques

7. Surface geological mapping 1

8. Surface geological mapping 2

9. Rock Mechanics inputs: Laboratory tests on rocks 1

10. Rock Mechanics inputs: Laboratory tests on rocks 2

11. Rock Mass Classification: 1

12. Rock Mass Classification: 2

13. Rock Mass Classification: 3

14. Rock Mass Classification: 4

15. I – System: Index of Ground -Structure A Comprehensive Classification and characterisation system for ground (rock and soil)-1

16. I – System: Index of Ground -Structure A Comprehensive Classification and characterisation system for ground (rock and soil)-1

17. Geological logging: drill holes

18. Geological logging: Drifts & Shafts

19. Hydrogeological studies for tunnels

20. Seismic design parameters

21. Rock stresses in tunnel design

22. Preliminary geological modelling

23. Geophysical Surveys 1

24. Geophysical Surveys 2

25. Directional Core Drilling

26. Laboratory tests for soils

27. Rock- excavation testing for TBM Tunnels Part -I

28. Rock- excavation testing for TBM Tunnels Part -II

29. Environment Appraisal for Tunnels

30. Geological inputs for DPR & Feasibility Reports

31. Geological base line reports: GBR, GDR, GIR, GFR

Module.4: Design

32. Layout optimisation, dimensioning, and tunnel shape profiling of Highway Tunnels

33. Layout optimisation for tunnel alignment and adits of Hydro Tunnels

34. Dimensioning and tunnel shape profiling of Hydro Tunnels

35. Geotechnical design aspects of Metro Tunnels

36. Design Philosophy for rock support

Optional Segment

Module.6: Survey & investigation

52. Rock Mechanics inputs: Laboratory tests on rocks 3

53. Rock Mechanics Inputs: Shear strength of intact rocks

54. Rock Mechanics Inputs: Shear strength of joints

55. Rock Mechanics Inputs: Shear strength of rock mass 1

56. Rock Mechanics Inputs: Shear strength of rock mass 2

57. Advanced exploration techniques (Geophysics)

58. Aeromagnetic surveys

59. In-situ rock mechanics tests 1

60. In-situ rock mechanics tests 2

Module.7: Design

61. Stability analysis of tunnel portals – Swedge, RocPlane, RocTopple

62. Options for selection of rock support elements: rock bolts, rock anchors, cable anchors, RRS, Lattice girders, precast concrete segments, shotcrete etc.

63. Design of tunnel Portals

64. Types of lining – Plain, Reinforced concrete lining, Shotcrete lining, Steel lining – Special membranes

65. Design of Lining

66. Drainage and Waterproofing of Tunnels

Module.8: Tender and Contract Management

67. Contract Formulation for Tunnels – 1

68. Contract Formulation for Tunnels - 2

69. Geological Risk Assessment

70. Risk Sharing Mechanism - 1

71. Risk Sharing Mechanism - 2

72. Contract Management at Tala hydroelectric project, Bhutan

Module.9: Tunnel Construction

73. Tunnel Construction Scheduling

74. Overall planning for tunnel construction

75. Choice of conventional Tunnelling method: Case Study

76. Technological advancements in Rock TBMs : Case Study

77. Ventilation & Lighting during construction of Tunnels

78. Dewatering during construction of Tunnels

79. ViD: Vibration induced Damage assessment for underground structure

80. TBM bored tunnels Part-1

81. TBM bored tunnels Part-2

82. Tero-technological aspects and disc cutter refurbishment

83. Necessity & efficacy of pre-grouting

84. Installation / placement of Primary support

85. Special support elements in weak strata –Fore-polling, RRS, Lattice girder, Pipe roofing

86. Deformation monitoring and optimisation of rock support system

87. Control of section and alignment – Use of lasers

88. Record keeping and documentation

89. Construction of a DBM tunnel: Case Study, Tala Hydroelectric Project, Bhutan

90. Placing the lining – Choice of the system-Number & length of gantry

91. Practical problems vis-à-vis design assumptions – Kerb and related issue

92. Grouting behind concrete linings and treatment of joints in tunnel linings

93. Lining in TBM bored tunnels – Related issues and grouting

94. As built Geology & support Installation

95. Dewatering of tunnels for repair – limitations and practices

96. Geophysical Investigations for existing Tunnels

97. Monitoring: Surface observations –Measurements by targets; Piezometers and water pressure measurements

98. O&M aspects of Hydro Tunnels

99. O&M aspects of Highway Tunnels

100. O&M aspects of Metro Tunnels