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 oldestguy

  1. oldestguy

    Trench Shield

    \My guesstimate is that once this shield is made, some do-gooder will take it to other jobs and maybe add to it. So, don't pinch on strength. Over building won't hurt and maybe it won't be ruined on the jobs due to skimpy construction. They don''t get much care in use, so build it accordingly.
  2. oldestguy

    Large Concrete Porch Fill Material

    don't make the mistake of jetting that fill. You could cave in the basement wall. I'd keep compactors 3 feet from any basement wall to avoid damaging them.
  3. oldestguy

    Slope stability of reclamation boundary

    Take at look at USA Corps of Engineer projects for piers and walls using circular sheetpile sections tied together with sheet piles. Not cheap, but effective.
  4. oldestguy

    Alternatives to Underpinning for Interior Basement Drainage

    All these ideas are Pretty damn elaborate and difficult to do. One initial comment, be sure any drain is properly filtered. The easiest is a simple perforated pipe, with 1/8" holes backfilled with ASTM C33 concrete sand. Forget the gravel unless it is wrapped with a filter cloth (takes time...
  5. oldestguy

    Correction Factors when using split spoon samples for direct shear testing?

    You are correct with this question. Sounds like a inexperienced engineer is asking for this sort of test sample. I can't visualize how any accuracy or dependability is there when using a highly disturbed of such a small diameter. Both rather stupid.
  6. oldestguy

    "Ash" identified in borelog

    Could be an ash dumped. I had a job nce where one sample was thought to be a natural deposit. However the job insector identified it as coal ash, meaning the who9le site was underlain by dumped coal ash, not discovered as ssh in the test borings. That inspector saved a lot of grief...
  7. oldestguy

    Jazz Appreciation Month - April 2021

    Guess I am very low brow, keeping polkas on all day long. WRJQ on their WEB site. In a new QTH now.
  8. oldestguy

    Grouting Techniques for Rock Anchors Losing Grout

    A very difficult thing to work with, especially where the voids can be very deep like 100+ft. I'd sure like to see how someone overcomes that situation. I gave up on a few jobs and they went to a lighter project with many spans over voids.
  9. oldestguy

    Questions of Filter Criteria for a Very High Dam

    I'd not compact in the usual way. I'd use a loading machine and push it down, no disturbance like compacting. leave the load on when checking the head loss with water going thru, etc.
  10. oldestguy

    To Mars,use the marsian rocks/crystals on the surface to create energy and no further import.

    We don't post e mail addresses either
  11. oldestguy

    Questions about a civil engineering career

    Go on line and look up ASCE. The you will get lots of information. It's not the highest paying engineer jobs, but sure has a lot of different fields to work in as a CE. I founa Masters helped me very much to get a jump on the graduates.
  12. oldestguy

    Foundation Shallow Underpinning - Overpour v Drypack relative to Shrinkage

    For that drain, don't forget to encase any gravel backfill with filter fabric OR use concrete fine aggregate for the drain backfill to keep from losing soil into the drain and beyond. Single size gravel is not a filter.
  13. oldestguy

    Foundation Shallow Underpinning - Overpour v Drypack relative to Shrinkage

    If you keep the water content of the concrete just enough to place it, shrinkage is likely no probe's. Notice I didn't say Pour the concrete. Use a vibrator to assist in placement. Then either way for getting that support will work. If in doubt go with dry pack well after concrete sets.
  14. oldestguy

    Asphalt Bearing Capacity. Wheel load vs Footing.

    One helluva difference. No way. I'd look to structural spread footings. Usually these footing pressure designations allow one inch deflection.
  15. oldestguy

    "Remote" assessment of bridge footings

    I once had the job of evaluating the support capability of a corrugated galvanized culvert pipe of damaged oval shape used as a pedestrian tunnel within the backfill of a railroad bridge. There was measurable deflection of this culvert pipe as a train passed over. Amazing that the diesel...
See more

Part and Inventory Search

Back
Top