Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by MechE2020

  1. MechE2020

    Alternatives to Underpinning for Interior Basement Drainage

    PEinc, Thank you. Apologize for the wording, I "meant" to not mess with placing drypack around a pvc pipe. No intention to leave it out. On the contrary, I wanted to maximize it's presence. By placing them in the pier, it adds the benefit of increased drainage behind the pier as you mentioned...
  2. MechE2020

    Alternatives to Underpinning for Interior Basement Drainage

    PEinc, Much appreciated. I had not thought about adding weep holes. Great idea that makes a lot of sense. I'd rather stay away from disturbing the new pier footing soil. What are your thoughts on just adding 1" pvc to the say top 1/3 of the pier pour and not messing with the dry pack? With the...
  3. MechE2020

    Alternatives to Underpinning for Interior Basement Drainage

    SlideRuleEra, Thanks for taking the time to look at my post and respond. I'm certainly not a Geotechnical Engineer (I'm sure that was/is obvious). I have found this forum to be very helpful. My question about the lateral soil pressure is more for my curiosity as a Mechanical/Civil Engineer on...
  4. MechE2020

    Alternatives to Underpinning for Interior Basement Drainage

    Thanks Oldestguy. After sketching all those ideas out, the underpinning sure is the least complex. My hesitancy has been around digging the dirt out from under the wall, potential loose stones, and settling. That got me thinking about other viable solutions that would acted more like a bench...
  5. MechE2020

    Alternatives to Underpinning for Interior Basement Drainage

    I have an older home that requires an internal french drain in the basement around the perimeter to provide drainage. The walls are field stone ~ 7 feet tall that are parged on the inside. The base of the walls is ~ 3 inches from the top of the floor. So my concern with the french drain is...
  6. MechE2020

    Underpinning Questions

    I see. So if you leave the earth side boards and cleats, do you just attach another face cleat to the previously embedded cleat when you come to the final piers between cured poured piers? Thanks.
  7. MechE2020

    Underpinning Questions

    PEinc, Thank you so much for the extra photos and wisdom. This helps considerably. Looking at this and your presentation, I'm wondering what type of wood you are using. Would standard untreated pine suffice or do I need something else as a minimum? Also, since I won't have access to the exterior...
  8. MechE2020

    Underpinning Questions

    PEinc, Great information. Can you provide any further details on the "shelf" material, construction, and placement during the digout? The wall stones appear to be generally 1 ft in length and 6" to 9" into the wall and they are around 4" thick. Would you still recommend drypack with such large...
  9. MechE2020

    Underpinning Questions

    Hi PEinc - Really appreciate and respect your inputs. A couple things about the existing drain/situation... 1) Not sure how long it was installed prior to buying the home 2) Installed with very shallow pitch with not much stone - assuming they knew enough to limit amount of soil removed under...
  10. MechE2020

    Underpinning Questions

    Thanks for the replies. I got the drawing from a local Structural Engineer. I would like to get ideas/advise here to discuss these aspects before proceeding with the job. I've attached some sketches. The first is the drawing for my house from the structural engineer (disregard my chicken scratch...
  11. MechE2020

    Underpinning Questions

    Hello, I live in a 1950's single family brick cape cod home (30' x 30') just outside Philadelphia. We have always dealt with a wet basement and in particular mud/clay and silt coming in at the basement floor to wall joints. The basement height and height to ground are both 7 feet. The basement...
See more

Part and Inventory Search

Back
Top