@oldestguy - Thank you for your insights!
@retired13 - Really appreciate the summary info on RH testing, visual survey, & damage mapping
@Ron - Would appreciate any suggestions you have on RH testing, based on the previous ones you've done, and that we only have a 4in slab. Never used it...
Foundation Plan may be useful (attached).
I should mention, the subsurface water here is not your typical groundwater table. It's more of a thin, perched aquifer that may be for example, located in a porous bed 6 feet below grade, prior to excavation of 0 to 10 feet.
As shown, top of...
@Oldestguy - It is, and they said they had that checked. Subsurface water in the area tends to be relatively thin, perched on dense, cemented material, and also flowing within thin layers.
My hypothesis was that the subsurface water was likely seeping from the cut made below the building...
Really good thoughts here. I understand it's really everywhere, not a central issue. Per Ron's questions
The commercial building was constructed in 1986.
Exterior french drains installed about 8 years ago
Subsurface soils are typically medium dense to dense Clayey Sand with PI of 25-30
They...
Moisture buildup between tile and concrete floor slab (Photo attached). Shallow water conditions are known to exist in the area. Perimeter french drain was installed over 4 feet deep, however, issue now noted in central portion of building. I believe it's due to head pressure after removal of...
We'll be looking at a site with up to approx 50' of granular, rocky fill material. I've never used one, but I'm thinking a Becker percussion rig would be best for exploring the fill material, what do you think?
How are Becker blows usually recorded in the field? Can anyone recommend a...
Thanks for the suggestions - I had considered preloading the site, but I don't feel very comfortable that it would work for this case.
I've had sites before with deep loose soils where we've run a large sheeps foot compactor on the surface for several days. Additional borings showed...
I do like the idea of micropiles. However, I am a little lost as to what amount of lateral pressure can be relied upon for design. I understand that if phi is 0, at least the passive resistance resistance should probably be the saturated unit weight, so maybe an equivalent fluid pressure on the...
@BigH - Site plan is attached. Adjacent to the large rock outcrops, the wet loose soil is about 5 to 6 feet. The site is covered with native grasses. A couple cottonwood trees along the north side.
@avscorreia: Yea, need to add some kind of cool water feature to this place. Would slender...
