tunnel , how too construct tunnel and its steps for the construction of tunnel

1. CONSTRUCTION OF
TUNNEL
TYPES & ITS CONSTRUCTION
3568045176679525/8469659021METHODS

2. DIFFERENT STEPS FOR
CONSTRUCTION OF TUNNEL
 1) Erecting supports for sides & roof if
necessary .
 2) Setting up the drilling .
 3) Loading holes with explosive & firing
them .
 4) Ventilation & removing the dust after
explosion .

3. DIFFERENT STEPS FOR
CONSTRUCTION OF TUNNEL
 5) Loading & hauling muck .
 6) Removing ground water if necessary .
 7) Placing reinforcement .
 8) placing concrete lining .

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5. TYPES ACORDING TO MATERIAL
 1) Hard rock
 2) Soft rock

6. CONSTRUCTION OF TUNNEL IN HARD
ROCK / METHODS
 1) Full face method
 2) Heading & benching method
 3) Drift method
 4) Pilot tunnel method
 5) Perimeter method

7. TUNNELING IN SOFT SOIL / ROCK
 1) Fore Poling method
 2) Needle Beam method
 3) Lines plate method
 4) Sheild method

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9. THANK
YOU3568045176679525/84696590
21ABDUL REHMAN
G.C.T RASUL
AFFALIATION WITH U.E.T LAHORE