SlideShare a Scribd company logo
EPA INFRASTRUCTURE PVT LTD
Back Filling and Area
Filling
B-267/268, North Ex Mall, Sector 9, Rohini,
New Delhi - 110085
Tel No: +91-11-47068151/52/56
Email: info@epa-infrastructure.com
COLUMN FILLING
COLUMN FILLING USING SANDY SOIL IS
THE FIRST THING TO START THE WORK
WITH AT A WORK SITE. BEFORE PUTTING
THE SOIL, MAKE SURE THAT THE LOSE
PARTIALS ARE REMOVED FROM THE
COLUMN FOOTING AND GROUND IS CLEAR
TO START THE WORK.
ARRANGE IMPORTED EARTH AND GET
THE SOIL TEST(CBR VALUE, PROCTOR
DRY DENSITY TEST & ETC) BY SOIL
TESTING AGENCY
Imported Sandy Soil
MARK THE FOOTING OF THE COLUMN
WITH A MARKER/PAINT STREAK AT
EVERY 9 INCHES TILL FOOTING LEVEL.
NOW PLACE 9 INCHES OF LOOSE LAYER
OF SANDY SOIL IN THE PIT AND WATER
THE SOIL TO OPTIMUM MOISTURE
CONTENT (OMC), RUN THE SOIL
COMPACTOR AROUND THE COLUMN.
SOIL WILL GET COMPACTED TO APPROX 6
INCH LAYER.
REACH UP TO THE FOOTING LEVEL OF
THE COLUMN FOLLOWING THE SAME
PROCEDURE
AGAIN PUT SANDY SOIL UP TO THE
MARK AROUND THE COLUMN AND
FOLLOW THE SAME PROCEDURE AND
REACH UP TO THE GROUND LEVEL.
WITH THE HELP OF JCB & LEVELER
SPREAD 8 INCHES OF SOIL ALL OVER
THE AREA.
ARRANGE FOR THE A WATER TANKER
AND SPREAD WATER ALL OVER THE
SITE AS ADVISED BY THE SOIL
CONSULTANT.
USE A VIBRO ROLLER AND START THE
ROLLING PROCEDURE ON THE
IMPORTED EARTH. REACH TO
REQUIRED LEVEL IN 6 INCH LAYERS.
THANK YOU

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VDF (Vaccum Dewatered Flooring) & back filling

  • 1. EPA INFRASTRUCTURE PVT LTD Back Filling and Area Filling B-267/268, North Ex Mall, Sector 9, Rohini, New Delhi - 110085 Tel No: +91-11-47068151/52/56 Email: info@epa-infrastructure.com
  • 2. COLUMN FILLING COLUMN FILLING USING SANDY SOIL IS THE FIRST THING TO START THE WORK WITH AT A WORK SITE. BEFORE PUTTING THE SOIL, MAKE SURE THAT THE LOSE PARTIALS ARE REMOVED FROM THE COLUMN FOOTING AND GROUND IS CLEAR TO START THE WORK.
  • 3. ARRANGE IMPORTED EARTH AND GET THE SOIL TEST(CBR VALUE, PROCTOR DRY DENSITY TEST & ETC) BY SOIL TESTING AGENCY Imported Sandy Soil
  • 4. MARK THE FOOTING OF THE COLUMN WITH A MARKER/PAINT STREAK AT EVERY 9 INCHES TILL FOOTING LEVEL.
  • 5. NOW PLACE 9 INCHES OF LOOSE LAYER OF SANDY SOIL IN THE PIT AND WATER THE SOIL TO OPTIMUM MOISTURE CONTENT (OMC), RUN THE SOIL COMPACTOR AROUND THE COLUMN. SOIL WILL GET COMPACTED TO APPROX 6 INCH LAYER.
  • 6. REACH UP TO THE FOOTING LEVEL OF THE COLUMN FOLLOWING THE SAME PROCEDURE
  • 7.
  • 8. AGAIN PUT SANDY SOIL UP TO THE MARK AROUND THE COLUMN AND FOLLOW THE SAME PROCEDURE AND REACH UP TO THE GROUND LEVEL.
  • 9. WITH THE HELP OF JCB & LEVELER SPREAD 8 INCHES OF SOIL ALL OVER THE AREA.
  • 10. ARRANGE FOR THE A WATER TANKER AND SPREAD WATER ALL OVER THE SITE AS ADVISED BY THE SOIL CONSULTANT.
  • 11. USE A VIBRO ROLLER AND START THE ROLLING PROCEDURE ON THE IMPORTED EARTH. REACH TO REQUIRED LEVEL IN 6 INCH LAYERS.