hyderabad metro rail l&t | construction sequence and procedure
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CONSTRUCTION SEQUENCE AND PROCEDURE OF HYDERABAD METRO RAIL Contributed By:K ABHINAV REDDYJNTUHCEH, INDIA
www.CIVILSCHOLAR.com
1. SEGMENT CASTING2. CONSTRUCTION OF PIERS3. ERECTION OF LAUNCHING GIRDER4. ERECTION OF PRECASTED SEGMENTS6. POST TENSIONING5. GLUING AND TEMPORARY STRESSING OF VIADUCT SEGMENT7. SESMIC ARRESTER
S1-01S2-02S3-03S4-04S4-05S4-06S4-07S4-08S3-09S2-10S1-11 TYPICAL 31M SPAN CONSISTS
SEGMENT CASTING
SOFFIT
SIDE SHUTTERING
PLACING OF REINFORCEMENTTYPICAL GIG
HDPE SHEATHSDUCT PROFILING
SEGMENT WITH CENTRAL VOIDS
INNER ASSEMBLY
BULK HEAD PANEL
CONCRETING1. DONE BY BOOM PLACER2. FROM THE BASE DESHUTTERING1. MOULD IS DE SHUTTERED AFTER 24 HOURS
DESHUTTERED SEGMENT
CASTING BAY
STACKING YARD
CONSTRUCTION OF PIER1. OBTAINING THE STATUTORY PERMISSIONS2. TRAINING ON CWP
3. BARRICATION
4. EXCAVATION5. PLACING OF REINFORCEMENT
REBARS AFTER BENDING
ISOLATED FOUNDATION
6. SHUTTERING
7. CONCRETING8. DESHUTTERING
ERECTION OF LAUNCHING GIRDER1. TRANSPORTATION OF LG2. ASSEMBLING OF LG3. ERECTION OF SUPPORTS4. LIFTING AND PLACING OF LG5. ERECTION OF WINCH ASSEMBLY6. ERECTION OF SEGMENT TROLLEYS
FRONT SUPPORT
MIDDLE SUPPORT
1. SEGMENT ALIGNMENTGLUING AND TEMPORARY STRESSING OF VIADUCT SEGMENT2. GLUING3. TEMPORARY STRESSING
POST TENSIONING1. INSTALLATION OF POST TENSIONING STRANDS
MULTI STRAND JACKHYDRAULIC MORTER2. STRESSING PREPARATIONS
3. INSTALLATION OF BEARING PLATES AND WEDGES
6. LOCK OFF7. SLIPPAGE CHECKING8. CUTTING THE PROJECTED STRANDS9. FILLING THE DUCTS
4. INITIAL STRESSING FOR SLACK REMOVAL5. FINAL STRESSING OPERATION
SESMIC ARRESTER