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  • Users: ZTGR
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  1. ZTGR

    Retiring Owner & Existing Clients

    Not looking as well for clients, I have enough in my network.
  2. ZTGR

    Retiring Owner & Existing Clients

    I am not looking for business coaching, i am looking to team up with another geotechnical engineer who's willing to start on his own as well, because two strong resumes strengthify the portfolio. thanks for the referral. :)
  3. ZTGR

    Retiring Owner & Existing Clients

    Hi FixedEarth, I am in the geotechnical field and starting up my own consulting. If you are in Southern California and interested in meeting how can we get in touch? let me know.
  4. ZTGR

    farewell to engineering education

    Farewell indeed. The disappointment is when you spend a lot of money, time, stress, and hard work to graduate as an engineer, and you spend 10 to 15 years gaining experience to find out that the pay is not rewarding!! it is equivalent to any other average career. We as professional engineers...
  5. ZTGR

    Seismic Retrofit

    Hokie66, I gave what we have in hand. Even the City does not have further info. Thanks for ur advise.
  6. ZTGR

    Seismic Retrofit

    As built drawings are available, but geotechnical investigation is not available, the building was built in late 60s. Even no geotechnical information available on the foundation plan.
  7. ZTGR

    Seismic Retrofit

    Hi, Thank you in advance for your opinions and recommendations. We need to perform a structural retrofit analysis for a 6 story building built in the 60s. We have as built/construction plans that shows the foundation system to be 24-inch diameter piers drilled to 35 and 40 feet. We need to...
  8. ZTGR

    Expansion Index

    Hello, I am sorry about calling it Undisturbed, I should call it Relatively Undisturbed. [thumbsup2]
  9. ZTGR

    Expansion Index

    Thanks for the replies, 1- Ashayeri: a California ring is used to collect undisturbed soil samples, a similar use to the shelby tube. it is cupper made and 25.4 mm in height, 61.37 mm in internal diameter, the sampler is similar to the split spoon but larger in diameter and it's aproximately...
  10. ZTGR

    Expansion Index

    Hello All, is there any criteria for testing for expansion using a 2.5 inches california ring? is there a paper related to that?? or any kind of relationship? any tip would be appreciated Thanks.
  11. ZTGR

    Remolded shear

    Hello Focht3, all results are not meeting the specs, i think that is because of the materials, not enough cohesion, to meet their standards i know the materials should be clayey sands (Standards call for c:23.9 KN/m2 , Phi 28 degrees and 25% passing #200). some of the materials meets the...
  12. ZTGR

    Remolded shear

    Hello, I have a simple question about the remolded shear testing, all the materials are not meeting the specs required (C of 590, Phi of 28 degrees) the materials are silty sands most of the time. i am performing the remolded shear on the material passing sieve #4, the ASTM don't mention...
  13. ZTGR

    Foundation on concrete slurry

    Hello all, an over-excavation been done for a footing designed for 10 kips/ft2. the footing suppose to be at 3 feet above the existing over-excavated bottom. a footing for such a high pressure should be on native rock, the bottom of the over-ex is native claystone. the contractor is planning to...
  14. ZTGR

    Determining depth of existing caisson

    Focht3 thnak you, your reply was helpful.
  15. ZTGR

    Determining depth of existing caisson

    Hello all, I need some help on where i can find a method or guide on how to determin the depth of an existing caisson without having to drill, sonic test or some alternatives?? any info is appreciated.
  16. ZTGR

    Rock Correction Factor

    Thank You cvg, Your reply was helpful ZTGR.
  17. ZTGR

    Rock Correction Factor

    Hello Geotechnical Engineers, I am looking for help to determin rock correction factors for mass grading. please could you help me on where i can find information about that. Thank you

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