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!

Search results for query: *

  • Users: dimitrios
  • Order by date
  1. dimitrios

    Retaining Wall Backfill Pressures Due To Seismic Forces

    Dear charlierock in the particular region you work with seismic activity, there must exist a code to apply, that specifies how to treat the problem (if I understood it correctly). From my experience in Greece, where we have seismic activity, retaining walls are divided in walls that can move or...
  2. dimitrios

    Elastic settlements, Fox equations

    Focht3 If possible, I am also interested in Fox equations. The part of Fox equations that concerns settlements takes into consideration the depth of the footing through a coefficient (If) that depends on D/B ratio (D=depth B=dimension of the footing)so I would think that the article regarding...
  3. dimitrios

    examples of underground space

    hello peterp, underground arcitecture is not my specialty. I just happen to know that in norway has been constructed an underground ice-skating field with extreme dimensions. I don't know its name to help you, but NGI was responsible for the design from rock mechanics point of view. Maybe they...
  4. dimitrios

    tunnel liner in FLAC

    Hello Luca Just one tip that might be usefull. Bear in mind that assuming only radial/normal connection between the lining and the soil will give you higher bending moments as the lining is forced by the radial bond condition into the same deformation shape as that of the surrounding soil, than...
  5. dimitrios

    tunnel liner in FLAC

    Hello Luca Unfortunately I have never used FLAC (except for ver. 1.0 !) and so I am not familiar with its capabilities, apart from what I 've read in the brochures. Never-the-less the problem you mention is common in practically all codes dealing with tunnelling. I have used on such occasions...
  6. dimitrios

    N value ! is there no way to convert 50 blows per 30cm into N blows pe

    Dear Chunil, Like everybody I have also met cases when N value is too high and the test is interrupted and the penetration is recorded, as you mention like 50/12cm etc. Unfortunately I don't know a way to treat it. Of course there are mathematical ways to extrapolate but as with everything in...
  7. dimitrios

    Foundation failure mode

    hello FSS, I couldn't help myself from writting down what I understood from your question and description, although there is a strong danger that I might show myself to be a little naive. In your initial description I understand that in order for a moment to produce compression and tension...
  8. dimitrios

    spt = soil stiffness or soil strength

    Hello pink, SPT is a vast subject and I am not able to give you the complete picture. You can find enough literature in many good manuals on the subject and perhaps look a little deeper in the theory behind it (Bowles books are a good start, I have read the subject in his Foundation...
  9. dimitrios

    tunnels near a bridge pile foundation.

    new builder, I understand that you have already put the problem in its way to be solved, and since there are no geometrical data available, you probably have made up your mind. My only point just to complete my answer is that transef of loads is done through the bending of the adjacent pile...
  10. dimitrios

    tunnels near a bridge pile foundation.

    hello newbuilder, this is a very serious problem. Is it possible to have some more information for the case ? Distance from piles, depth of piles and tunnel depth and section area would be helpfull to form the picture. Generally speaking I think the first thing would be to try to transfer the...
  11. dimitrios

    Quake Action On Soils-request for basic info

    Hello IJR, although I am not familiar with the structural behavior of buildings I cannot help but shearing some thoughts that I have had on occasions when dealing with similar problems when dealing with embedded structures, as tunnels for example. Building codes (as I know for Greece and...
  12. dimitrios

    Reactivated settlements in peat

    Hello jackson, although there have been already answers that cover beyond my knowledge possible causes I would just like to point out that there are perhaps one main cause that triggers some others. Since you asked about the decrease in effective stresses due to water level rise, you are right...
  13. dimitrios

    How effective is soil damping in pile response to seismic event

    Hello IJR. I am not sure if it can be of any help, but French regulations (Fascicule No 62 - Titre V) for example multiply the spring constant simulating elastic soil behavior, based on pressuremeter measurements, by a factor of 2 when dealing with seismic loads. I think this will lead to...

Part and Inventory Search

Back
Top