The document outlines the construction sequence and procedure for the Hyderabad Metro Rail project in 7 steps: 1. Segment casting of precast concrete segments for the viaduct. 2. Construction of piers by excavating, placing reinforcement, shuttering and concreting. 3. Erection of a launching girder to aid in construction. 4. Erection of precast segments using the launching girder and segment trolleys. 5. Gluing and temporary stressing of segments after alignment. 6. Post-tensioning of segments by installing and stressing strands. 7. Installation of seismic arresters.

1. CONSTRUCTION SEQUENCE AND PROCEDURE
OF
HYDERABAD METRO RAIL
Contributed By:
K ABHINAV REDDY
JNTUHCEH, INDIA
www.CIVILSCHOLAR.com

2. 1. SEGMENT CASTING
2. CONSTRUCTION OF PIERS
3. ERECTION OF LAUNCHING GIRDER
4. ERECTION OF PRECASTED SEGMENTS
6. POST TENSIONING
5. GLUING AND TEMPORARY STRESSING OF VIADUCT SEGMENT
7. SESMIC ARRESTER

3. S1-01S2-02 S3-03S4-04S4-05S4-06S4-07S4-08 S3-09 S2-10S1-11
TYPICAL 31M SPAN CONSISTS

5. SOFFIT

7. SIDE SHUTTERING

10. PLACING OF REINFORCEMENT
TYPICAL GIG

12. HDPE SHEATHS

13. SEGMENT WITH CENTRAL VOIDS
INNER ASSEMBLY

15. BULK HEAD PANEL

17. CONCRETING
1. DONE BY BOOM PLACER
2. FROM THE BASE
DESHUTTERING
1. MOULD IS DE SHUTTERED AFTER 24 HOURS

18. DESHUTTERED SEGMENT

19. CASTING BAY

20. STACKING YARD

21. CONSTRUCTION OF PIER
1. OBTAINING THE STATUTORY PERMISSIONS
2. TRAINING ON CWP

22. 3. BARRICATION

23. 4. EXCAVATION
5. PLACING OF REINFORCEMENT
REBARS AFTER BENDING

24. ISOLATED FOUNDATION

26. 6. SHUTTERING

28. 7. CONCRETING
8. DESHUTTERING

30. 1. TRANSPORTATION OF LG
2. ASSEMBLING OF LG
3. ERECTION OF SUPPORTS
4. LIFTING AND PLACING OF LG
5. ERECTION OF WINCH ASSEMBLY
6. ERECTION OF SEGMENT TROLLEYS

33. FRONT SUPPORT

34. MIDDLE SUPPORT

38. 1. SEGMENT ALIGNMENT
GLUING AND TEMPORARY STRESSING OF
VIADUCT SEGMENT
2. GLUING
3. TEMPORARY STRESSING

42. POST TENSIONING
1. INSTALLATION OF POST TENSIONING STRANDS
2. STRESSING PREPARATIONS

43. 3. INSTALLATION OF BEARING PLATES AND WEDGES

44. 6. LOCK OFF
7. SLIPPAGE CHECKING
8. CUTTING THE PROJECTED STRANDS
9. FILLING THE DUCTS
4. INITIAL STRESSING FOR SLACK
REMOVAL
5. FINAL STRESSING OPERATION

46. SESMIC ARRESTER