How does soil compaction affect foundation design

I’ve been diving into soil mechanics lately, and one thing that constantly comes up is the impact of soil compaction on foundation design. Compaction not only increases the load-bearing capacity of the soil but also reduces settlement in structures. It makes me wonder how often this principle is overlooked in preliminary site investigations. Anyone else noticed this in their projects?

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It seriously drives me nuts how often compaction gets brushed aside in site investigations… I once worked on a project where we skipped thorough soil testing, and it resulted in significant settlement issues later on. It cost us thousands in retrofitting! Has anyone else dealt with unexpected costs due to poor compaction?

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I get what you mean about those unexpected costs — happened to me on a job where we thought the soil was solid, but it turned out to be poorly compacted. Always recommend doing a few simple tests before starting to save headaches later. Anyone else faced similar surprises?

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You’re spot on about compaction! I once had a project where we assumed the soil was good to go, but after some compaction tests, we found out it was like a marshmallow. A quick pre-investigation can save a lot of headaches later, just like @carl_jenkins99 mentioned.

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