Bilz Isolation Foundation at Rae Bareli


We recently completed a foundation isolation for a government company who was involved in setting up a Rail Coach Shop in India. The details of the same are given below:


Co ordinate measuring Machine 50-35-25.

Bilz Anti Vibration Solution:

Isolated Foundation.

Bilz Product Utilised:

Insulating Plate Stacks. Alternatively stuck together insulating plates of types B8(4 Nos.) and B13W(5 Nos.) per stack

Total Number of Stacks: 48 Nos.


Dimensions of the Isolated Foundation:

Size (Pit): 7.1 x 6.2 x 1.0 Metres.

Size (Concrete Foundation Block): 7.0 x 6.1 x 0.9 Metres.

Size (Steel Plate): 7.0 x 6.1 x 0.01 Metres.

Weight (Machine+Trolley+Dynamic Weight+Job Weight): 9T+2T+5T+3T=19 Tons

Weight (Steel Plate): 3.4 Tons

Weight (Foundation Block): 74 Tons

Total Weight on Bilz Insulated Plate Stacks: 96.4 Tons



The Bilz Isolated Foundation technique is different than the traditional method of Civil Foundation. In the traditional method, a pit is dug and a concrete block is erected in the centre of the pit, keeping a gap from the walls of the pit. However, today accuracy has become a VERY big deal and to cater to this need, machine tools have been designed to to alleviate this need. Now, for any accurate machine it is neccessary to minimise all outside interference, including vibrations. The key point in the procedure of Bilz Isolation Foundations in comparision with Civil Foundation is that, after digging the pit, we stick the insulating plates stacks to the floor and calulated interval and then the concrete block is constructed on these stacks itself, which gives you a foundation that is completely vibration absorbant! The full step by step procedure is given below:

  1. A pit is dug at the place, which is to be insulated. RCC is done at the bottom of the pit. Using cement, all the sidewalls & the bottom surface of the pit is finished & allowed to cure & dry.
  2. Stacks of Bilz insulation plates are arranged on the floor of the pit & are pasted there.
  3. This is then covered with the MS plate 10 mm thick.
  4. Using greased centering plates on all the sides, a box is made. This is covered with PVC film.
  5. Suitable steel cage for RCC is then lowered in the pit.
  6. Concrete is then poured in the pit in 3 steps keeping a gap of at least 8 hours in between.
  7. Remove the greased centering plates after 8 hours of curing.
  8. Lost Form Work is then packed in the area between the central foundation block & the main floor. Heatlon bar of suitable size is then pressed on top of the gap. This is then sealed with silicon sealant.
  9. The concrete is now allowed to cure for 15 to 21 days.
  10. The Floor is now ready for the machine.