oldestguy - Understood/agreed. Subdrain gravel will be installed on filter fabric wrap, followed by slotted PE pipe, then gravel to height, with filter fabric wrapping / overlapping to complete subdrain assembly. Additional subdrains outside basement walls will be bored in - moled or...
oldestguy ...
Much appreciated!
PEinc ...
Current plan is for placement of “typical 3000 to 4000 psi concrete mix” (as you note), typical to slightly dry slump, machine mixed bags along exterior footings in 1, 3, 5, 2, 4 sequence (2 pits per 30 ft wall - 8 pits per day - one 6-day week...
Smart People,
I’m working on renovation of 3-story c1927 house (unfinished walkout basement, street and upper level finished, 30ft x 30ft footprint). Basement is to be finished, including lowering by 18in (underpinning) to increase ceiling height from 6ft 8in to 8ft 0in (incl flooring)...
I'm not tracking 'just leave it'. AHJ basically said as I'm a PE taking responsibility that pretty much whatever I decide to do is fine and if there is something unusual, then just to give him calcs to keep on file. I'm only underpinning to lower basement. There are no settlement issues...
Only visible settlement (minor) appears to have reached relative terminal stage/completion at least 50 yrs ago. I'm also distributing load in that area somewhat more than originally, so I don't see that as an issue. I'm tracking you on time dependent / primary / secondary consolidation, which...
I'm not familiar with "stacked footing" terminology. Current plan is to excavate 3ft wide x 18in deep sections underneath existing footing and pour/drypack in a 1,3,5,2,4 sequence.
Smart People,
I’m working on renovation of 3-story c1927 house (unfinished walkout basement, street and upper level finished, 30 ft x 30 ft footprint). Basement is to be finished, including lowering by 18in (underpinning) to increase ceiling height from 6ft 8in to 8ft 0in (incl flooring)...
