Foundations in black cotton soil - Printable Version

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Foundations in black cotton soil - Amit Mathur - 11-09-2018

Foundations in black cotton soil

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RE: Foundations in black cotton soil - Manish Jain - 08-19-2026

For foundations in Black Cotton (BC) soil, the key issue is not simply low bearing capacity—it is the shrink–swell behaviour of expansive clay. Will discuss here a case with BC soil extending to 10 m depth, and compares stabilized soil/macadams with under-reamed piles.
Why Black Cotton Soil is problematic
BC soil:

• Swells when it absorbs moisture
  
• Shrinks and cracks when it dries
  
• Can produce differential movement below foundations.
  
• Light structures can actually be particularly vulnerable to heave; the reference notes this observation for single-storey buildings.
  

for more detail .... https://frontdesk.co.in/building-construction/foundations-in-black-cotton-bc-soil-in-india/

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