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  1. malaycobra

    Extraction of drilled pile casings without a hammer.

    Zambo, you are hereby awarded a black-belt in Google-Fu! I pride myself on my search abilities, but I missed that one. Thanks a lot! www.hliconsulting.com Specialists in Heavy-Lift and Transport Planning
  2. malaycobra

    Extraction of drilled pile casings without a hammer.

    The casing weighs 40,000 Lbs The 275t crane is actually rated for 165,000 Lbs I certainly will not allow them to pull that much, as a sudden release would have unpredictable consequences. I really just trying to put a conservative, safe procedure together for something that appears to happen...
  3. malaycobra

    Extraction of drilled pile casings without a hammer.

    Thanks for your replies. We suggested the jacking idea to our client, and he will do that if he cannot get permission to "dry pull" This is merely a contingency in case they lose their hammer. It is not meant to be a common practice. He says they routinely pull casings like this, and the only...
  4. malaycobra

    Extraction of drilled pile casings without a hammer.

    I have a client who has asked us to write a procedure for "dry" pulling casings with a crane (i.e. no extraction hammer will be used) His client and the crane manufacturer have their doubts, but I believe it's possible to proceduralize the process and perform the maneuver safely. Do anyone...
  5. malaycobra

    Crane Failure due to ground bearing

    Hokie, You're right in the sense that the support method was to blame, and should have been better designed. From carrying out hundreds of lifts, I've found it's often the case that a problem can be mitigated by the response of the crew. I have to say I think they could have responded better...
  6. malaycobra

    Crane Failure due to ground bearing

    Err, they did use Pontoons. The problem was with the underlying ground. Not only was the existing ground saturated by being adjacent to water, but the fill they placed had been subject to torrential rains in the days preceding the lift. Also, the signaler and operator took far too long to...
  7. malaycobra

    Required Tractive Force

    While I appreciate your taking the time to answer, you say "Once you determine the force at that angle" and "then you need to determine the coefficient of friction" If I know how to do that, I wouldn't have asked the question. Anyway, thanks for your time, I got my answer elsewhere...
  8. malaycobra

    Required Tractive Force

    This may be too vague a question, but here goes: I have to get a 420 tonne (GVW Load & trailer) load up a 13% grade. How much tractive force would the tractor unit need to have? Not much I know, but that's all the information I have for now.
  9. malaycobra

    AutoCAD Construction Vehicle blocks?

    Chicopee, I have searched for the thread you mentioned but cannot find it, can you enlighten me? www.hliconsulting.com Specialists in Heavy-Lift and Transport Planning
  10. malaycobra

    Tracked crane loading

    I have loading software for many crane models. Let me know which crane you are using and the lift data. maybe I can help. Also remember, due to the profile of the tracks on many crawler crane models (a lot of them "turn up" at the edges), the loadings are higher on concrete or steel than on a...
  11. malaycobra

    Vanilla Autocad and XP 64bit

    I have yet to find a 32bit program that won't run on a 64 bit machine. 64 bit applications work best though. Drivers, now that's a different matter. If you have old hardware, you might run into trouble. www.hliconsulting.com Specialists in Heavy-Lift and Transport Planning
  12. malaycobra

    Lines on top of lines, on top of lines......

    I heard also that in the days of pen plotters, draftsmen would draw multiple lines to achieve different line thicknesses. When the pen got to one of these lines, the pen would go back and forth and the ink would spread, thus getting thicker! www.hliconsulting.com Specialists in Heavy-Lift and...
  13. malaycobra

    Helicopter Crane

    I've never ordered one, but scuttlebutt suggests 6 figures... www.hliconsulting.com Specialists in Heavy-Lift and Transport Planning
  14. malaycobra

    Helicopter Crane

    Erickson now have a model that will lift 25,000 Lbs http://www.ericksonaircrane.com/img/aircranespecs-designandperf.jpg Their web site: http://www.ericksonaircrane.com/index.php www.hliconsulting.com Specialists in Heavy-Lift and Transport Planning
  15. malaycobra

    Helicopter Crane

    You can expect to pay $150k for a helicopter lift like this. Also, they are very weather sensitive. One breath of wind and they cannot go to work. Contact me through the website below. We'd love to take a look at lift options for your job. www.hliconsulting.com www.hliconsulting.com...
  16. malaycobra

    PDF's into AutoCAD

    Export the file as a PNG image. This works especially well for drawings as AutoCAD automatically inverts the colors. This makes it much easier to work with, especially if you want to trace it. www.hliconsulting.com Specialists in Heavy-Lift and Transport Planning
  17. malaycobra

    Used Civil 3d License

    Autodesk's licence agreement doe not allow the selling of older versions. There has been quite a lot of discussion about this over the web. There are even stories of companies getting legal warnings just for asking if they can donate, yes donate, older versions to schools etc. There used to be...
  18. malaycobra

    Copy my settings to new version of ACAD

    In 2007 Tools---> Options ---> Profiles Select current profile then click export and save .ARG file In 2009 Tools---> Options ---> Profiles Import profile
  19. malaycobra

    Barge Mounted Crane

    Manitowoc provide "list charts" for their cranes when used on barges. They assume an out of level crane. Call a dealer and ask. De-rating a crane by 50% is very conservative. Also waiting for the crane to tip to know when yo have reached it's limit is EXTREMELY DANGEROUS! Also, to a1a1a, the...
  20. malaycobra

    "zoom extents" "zoom all" functions not zooming in far enoug

    Try this: Edit select all Hold down shift and select the main part of your drawing. Hit delete

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