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 MintJulep 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: *

  1. Geosubhtech

    Load combinations for pile design

    Hello Everyone, Just a basic question on load combinations in Eurocodes as i am new to Eurocodes. I have received the following loads from strcutural engineer. Permanent Loads: Vertical Compression (kN) = 50 Vertical Tension (kN) = 0 Horizontal shear (kN) = 0 Variable Loads: Vertical...
  2. Geosubhtech

    Dynamic pile load test followed by Static load test

    Greetings to all, I have a query about load testing. Is it correct to conduct a static pile load test on a pile which is already tested by dynamic load test. The final settlement attained is 0.1, 0.3 and 0.86mm in the three successive blows. The pile is a bored cast in situ pile. If anyone...
  3. Geosubhtech

    Dynamic Summation in Excel formula

    Yes sir. It helped a lot. Saved lot of time. I have added some filters in to it and works very well. Many many thanks to you for the help & giving your time.
  4. Geosubhtech

    Dynamic Summation in Excel formula

    Is it possible to make some (more simple to decipher) formula which will work if my row 3 to 10 is changed to row 3 to 17.
  5. Geosubhtech

    Dynamic Summation in Excel formula

    please find the file attached. https://files.engineering.com/getfile.aspx?folder=8b18984a-af1f-461c-ba1d-2e1cb20fdb8e&file=Sample_cal.xlsx
  6. Geosubhtech

    Dynamic Summation in Excel formula

    Greetings of the day.... I am trying to make one dynamic SUM in excel. i want to input the different depths in G & H column. The layers with SAND thickness should be returned in I column. the extra difference also should be included with in. The sample file i have attached. I tried some...
  7. Geosubhtech

    SPT Hammer efficiency - ASTM D4633

    Dear All, I just want to understand why there is a restriction in ASTM D4633 Clause 4.2 Note - 1 regarding the limitation of the SPT hammer energy evaluation of the hammer in between 10 to 50. In definition of the N- value it is understood that the blows required for 300mm penetration by...
  8. Geosubhtech

    Testing proposals for shale rock

    Greetings to all!!! I am looking for the problems associated with foundations (for pile, open & box type) on shale (completely weathered to moderately weathered). So, what are the things to be kept in mind during geotechnical investigation for shale rock? It is a elevated highway structure on...
  9. Geosubhtech

    Fine grained soil Behaviour based on permeability

    to be very specific, The client want to have a option for recharge wells in that urban area for recharging the GWT. So if the GWT rises then the soil will get saturate. SO i may need to think of analyzing with undrained analysis. If they rule out the option of raising the GWT, then the soil is...
  10. Geosubhtech

    Fine grained soil Behaviour based on permeability

    The piles were 29m length as preliminary analysis.
  11. Geosubhtech

    Fine grained soil Behaviour based on permeability

    Thank you retired13 for the references. Geoenvguy: Considering mostly the skin friction only, as end bearing have many issues like base cleaning and all.
  12. Geosubhtech

    Cyclic Vertical pile load test - Simulation

    Greetings to all!! I received some Load test reports. The load test is conducted cyclic vertical. There was no instrumentation in the pile. Only information according to test conducted is, pile top settlement, rebound of pile after removing each load increment. So, to separate skin friction and...
  13. Geosubhtech

    Fine grained soil Behaviour based on permeability

    Greetings to all. The project location is majorly dominated by Sandy SILT with very less clay content (ML-CL). Silt is everywhere more than 55% and clay is less than 18%. The direct shear tests (DST) shows a C-phi behaviour of soil. The cohesion ranges from 5kPa to 10kPa and Phi ranges from 27...
  14. Geosubhtech

    Preparing Soil profile

    Greetings to all Is there any freeware or any VBA or Python code for making soil profile ? I used to spend many hours by making the soil profile and cross sections for working. If any good software with 3D viewing modes or any quick 2d profiling like by any codes is available please reply...
  15. Geosubhtech

    Large Dia Pile - End bearing mobilisation

    Yes the scour depth is design scour depth (2 times the scour depth obtained by Lacy's method). The scour calculation is based on silt factors and discharge. Silt factors for cohesionless soil is taken from mean dia of particle (from grain size distribution) and for cohesive the shear strength is...
  16. Geosubhtech

    Large Dia Pile - End bearing mobilisation

    Hello Everyone, I am currently working on a river bridge project. The location is a delta region. Scour depth is 40m. Pile dia adopted is 2m & 2.5m. So to make the pile as a long pile, the critical length is used as the minimum embedment below scour level. So 30m min. embedment is provided...
  17. Geosubhtech

    Thoughts on cast-in-place pile resistance

    According to my view, i will design the pile as fully friction pile in case of soil. If pile terminates in clay strata; having completely clay above founding level, then friction contribution will be more as compared to end bearing so it will be friction pile. The contribution of sand layer in...
  18. Geosubhtech

    Failure criteria for shallow foundations

    Sorry for not being clear on my question. The bearing capacity equation given by Terzaghi is for strip footing, but the factors help us to change the capacity to our requirement. He considered general shear failure and local shear failure. So, while calculating the bearing capacity how to...
  19. Geosubhtech

    Failure criteria for shallow foundations

    Greetings to all. Is there any reference for the failure criteria of shallow foundations? I mean three criteria (general, Local, Intermediate) are available. So what are the criteria to categorize these three in cohesive as well as cohesionless soils. For cohesionless soils we use angle of...
  20. Geosubhtech

    Lateral pile load test - Deflection measurement

    If i understood properly, irrespective of predicting deflection along the pile the pile measurement at pile head (deflection, slope, B.M.) can allow you to produce a pile soil response to predict the deflection and capacity. The reference could be done to L. C. Reese and W. R. Cox, "Soil...

Part and Inventory Search

Back
Top