The main role of this tunnel is to fulfill the water supply demands in safe and uninterrupted manner in future

1. PRESENTED BY:-
RATNESH SHINDE
DURGESH SHRIVASTAV
NITESH SHEWANI
SHIVANI KHARPUDE
HARSHADA TELTUMBADE

2. INTRODUCTION
DEFINATION OF TUNNEL:-
•TUNNELS ARE UNDERGROUND ARTIFICIAL
PASSAGES OR ROADWAYS USED FOR
TRANSPORTATION.THEY COULD BE USED FOR
CARRYING WATER,SEWAGE,GASES,PASSENGERS
ETC.
•THE METHODS INVOLVE ARE UNDERGROUND
OPERATIONS KNOWN AS TUNNEL DRIVING AND
THE GROUND SURFACE IS NOT DISTURBED.

4. NEED OF THE PROJECT
 THE EXISTING PIPELINES IN MUMBAI ARE
110 YRS. OLD AND THEY ARE ABOVE THE
EARTH SURFACE SO THERE WERE
CORROSION AND SAFETY ISSUES DUE TO
SALTY WATER AND HIGH HUMIDITY ALSO
EXPECTED POPULATION OF MUMBAI TILL
2021 WILL BE 163.5 LACS AND 2051 WILL BE
AROUND 200.43 LACS SO THERE WILL BE
NEED OF MORE WATER SUPPLIES SO
WATER PIPELINES ARE NEEDED FOR
FULFILLING FUTURE DEMANDS. FOR
MEETING ALL THESE PROBLEMS

7. SALIENT FEATURES OF THE PROJECT
 CONSTRUCTION OF VERTICAL SHAFT
WITHIN THE WELL OF FINISHED DIA AND
DEPTH OF SHAFT FROM THE GROUND
LEVEL WITH THE HELP OF CONTROLLED
BLASTING AND CONVENTIONAL
DRILLING.
 EXCAVATION OF TAIL TUNNEL AND
ASSEMBLY TUNNEL BY CONTROLLED
BLASTING AND CONVENTIONAL
DRILLING.
 BORING OF TUNNEL BY MODERN FULL
FACE TBM INCLUDING

8. SCOPE OF THE PROJECT
 SURVEYING FOR FIXING LOCATION OF
SHAFT AND ALIGMENT OF TUNNEL
BETWEEN THE SHAFT.
 CONSTRUCTION OF VERTICAL SHAFT BY
CONVENTIONAL DRILLING AND
CONTROLLED BLASTING METHOD
 PROVIDE CONCRETE REINFORCEMENT
TO THE PIPES SHAFT, ANCHOR BOLTS
ETC.

9. LIST OF MATERIALS
 CEMENT
 AGGREGATES
 ADMIXTURES
 REINFORCEMENT
 INSULATION MATERIALS FOR TUNNEL
AGAINST WATER
 ANTI BACTERIAL PAINT

10. LIST OF EQUIPMENTS
 TBM
 Probe Drilling Equip.
 SLD Crane
 Gantry Crane
 Locomotive
 Mine Car
 Main Ventilation Fan
 Compressor
 Dewatering Pumps

11. CONSTRUCTION METHODOLOGY
 A. WELL SINKING
 THE WELL FOUNDATION GENERALLY
CONSIST OF CONSTRUCTION OF THE
WELLS AND SINKING THEM DOWN TO THE
REQUIRE LEVEL BY DREDGING OF THE
SOIL AND OTHER MATERIAL,PLUGGING THE
BOTTOM.
 DEWATERING INSIDE THE WELL AND
GROUTING THE ROCK AT THE JUNCTION
OF THE WELL AND THE ROCK TO CONTROL
LEAKAGE OF WATER.

12.  B. SHAFT CONSTRUCTION
 DETAILED SURVEY IS CARRIED OUT TO
ESTABLISH THE LENGTH AND BEARING OF
TUNNEL BETWEEN TWO SHAFT.
 AFTER SINKING OF WELL, THE SHAFT IS TO
CONSTRUCT WITH CONTROL
BLASTING.FOR THE CONTROLLED
BLASTING OF SHAFT,THE DRILLING
PATTERN IS MADE.
 GEOLOGICAL INSPECTION IS CARRYING
OUT AT VARIOUS LOCATION DURING THE
WORK.
 IF THE ROCK IS WEAK,POOR IT IS
SUPPORTED SUITABLY BY PROVIDING

13.  C. TUNNEL CONSTRUCTION
 THE TUNNEL IS EXCAVATED USING
6.25 M DIA MODERN FULL FACE TBM
INCLUDING COMMUNICATION
FACILITIES,LIGHTINING,SAFETY
MEASURES ETC.
 FOR LINING OF THE TUNNEL THE
CONCRETE USED IS OF GRADE M25
OF REQUIRED SLUMP OF 90-120 MM