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Patent Details

Applicant:
Indian Institute of Technology (IIT) Roorkee 
Title:
A method and a device to improve the strength characteristics of pond ash deposits 
Inventor(s):
B.K. Maheshwari, Swami Saran, D. K. Paula, S. Mukherjee, M.L. Sharma, Subodh Jain, H.P. Singa and N.P. Aterkar 
Applicant:
Indian Institute of Technology (IIT) Roorkee 
Application type:
Applied - 2010-01-25 
Application Number:
142/Del/2010 
Applied at:
India 
Entered by:
Indian Institute of Technology (IIT) Roorkee 
Abstract:
The invention relates to a method to improve the strength characteristics of pond ash deposits by adapting a device capable of generating stone-sand columns, the method comprising the steps of providing a device having a casing pipe with a detachable shoe and a hammer; driving the casing pipe with detachable shoe at the bottom of the deposit by the hammer at a desired location to create a hole; filing the casing pipe up to a first depth with a desired back fill material; withdrawing or lifting the casing pipe from the bottom of the surface; compacting the back fill material inside the hole by adapting the dynamic compaction method; filing the casing pipe up to a second depth with the desired back fill material; repeating the steps (b) to (e) for achieving a maximum compaction; and repeating the steps (b) to (f) layer wise till the compaction piles are installed up to the existing ground level. 

 
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