Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15
  1. #1
    Join Date
    Feb 2004
    Location
    N.E. Mass.
    Posts
    2,030

    Default Two dead in bucket truck accident

    Featured Sponsor

    National Grid = Retired! US Army vet. 68 - 70
    As of April of 2010 I quit smoking! It's been hard but so far no butts! I am now an X smoker!

  2. #2
    Join Date
    Feb 2004
    Location
    N.E. Mass.
    Posts
    2,030

    Default

    Sorry it seems that this video has been removed!
    National Grid = Retired! US Army vet. 68 - 70
    As of April of 2010 I quit smoking! It's been hard but so far no butts! I am now an X smoker!

  3. #3
    Join Date
    Mar 2003
    Location
    Jersey
    Posts
    2,512
    Blog Entries
    1

    Default

    Lood, what company?
    Last edited by Orgnizdlbr; 04-14-2014 at 04:43 AM.
    "It is not the critic who counts:The credit belongs to the man who is actually in the arena" Teddy Roosevelt

  4. #4
    Join Date
    Feb 2004
    Location
    N.E. Mass.
    Posts
    2,030

    Default

    Quote Originally Posted by Orgnizdlbr View Post
    Lood, what company?



    http://www.facebook.com/l.php?u=http...86&h=6AQEXYV0b

    Mass Bay Electric working for N-Star
    Last edited by loodvig; 04-14-2014 at 06:43 AM.
    National Grid = Retired! US Army vet. 68 - 70
    As of April of 2010 I quit smoking! It's been hard but so far no butts! I am now an X smoker!

  5. #5

    Default Bad Day!

    To all...The accident occurred at 665 Scenic Hwy. Bourne MA. It’s a rock and gravel quarry with a transmission line running through it. You can put that address into Google maps and it will take you to the site. Look at the northern edge of the quarry for the line. They had 140' of stick out and it appears as though the truck went over backwards. The cab and the chassis are sticking straight up in the air in photos taken at the scene. A little premature perhaps...but the only way I can see this happening is gross overload at the given boom angle. Just saying. God speed to all !!

  6. #6

    Default

    Quote Originally Posted by Knuckles View Post
    To all...The accident occurred at 665 Scenic Hwy. Bourne MA. It’s a rock and gravel quarry with a transmission line running through it. You can put that address into Google maps and it will take you to the site. Look at the northern edge of the quarry for the line. They had 140' of stick out and it appears as though the truck went over backwards. The cab and the chassis are sticking straight up in the air in photos taken at the scene. A little premature perhaps...but the only way I can see this happening is gross overload at the given boom angle. Just saying. God speed to all !!
    Could it possibly be improper outrigging/poor ground conditions/ect.

  7. #7

    Default

    Before speculating as to whether the guys caused the tip-over it would be better to accumulate facts first. We had a recent incident in the UK where a mechanic was killed when the new machine he was testing tipped over. It turned out to be a fault in its positioning safety limiter.
    Portable defibrillators were first invented to save the lives of linemen. Where's yours?

    www.bigclive.com

  8. #8

    Default Anything is possible!

    Reppy...while yes it is possible it is unlikely given the mechanical dynamics of the accident scene. The boom does appear to have been positioned directly aft of the chassis. When you have 140' of boom in the air it is not hard to get overloaded when you begin articulating the boom. Meaning you have a very very limited field of motion. Not to mention increasing the load by say perhaps attempting to move a conductor. And yes it would overload the support capabilities of the outriggers. Please understand I don't know and mean no disrespect by my statement. I have observed this exact type of accident before and it took a very short day to determine the cause. Again I don't know...

  9. #9
    Join Date
    Dec 2010
    Location
    Ontario, Canada
    Posts
    1,012

    Default

    I just can't see how overloading the boom would go that far, that cab and chassis is a huge counterweight . The ground must have given away. Working off the back end is the most stable working position. Prayers going out to their families and co-workers. RIP

  10. #10
    Join Date
    Oct 2009
    Location
    Northern Virginia
    Posts
    93

    Default

    Featured Sponsorr

    Quote Originally Posted by rob8210 View Post
    I just can't see how overloading the boom would go that far, that cab and chassis is a huge counterweight . The ground must have given away. Working off the back end is the most stable working position. Prayers going out to their families and co-workers. RIP
    I know working off the back seems the most stable, but in most cases, it is not. It depends on where the lift is attached to the chassis and where the wheels are. For the case with no horizontal loading (wind or force by the users in the bucket), the stability is determined simply by the "moments" on one side of the impending point of rotation (one of the axles) relative to the moments on the other side. A "moment" is just a torque value and is computed by the weight times the distance from the point of impending rotation. Since a moment is a force times a distance, a small weight at a great distance from the fulcrum can be equal to a small weight close to the fulcrum. Because we are assuming all vertical forces, the height that the force is applied does not enter into the calculation. For the case where all forces are vertical, the point of impending rotation is shown as a triangle fulcrum point below with a red line to show the two sides.

    The truck will begin to rotate when the moments on one side of the red line are greater than those on the other. Because the lift shown in the photo had the lift mounted to the rear of the vehicle, "working off the back" is less stable because most of the boom is on the far side of the red line from the truck. As shown in the diagram on the right, much of the boom is on the truck side of the red line and contributes to stability. I have simplified this a bit because I have treated the truck as a "rigid body" and it's not. Its orientation changes with loading because of the springs.

    Anyway, I hope this helps.

    Name:  Bucket Dynamics.jpg
Views: 1323
Size:  22.3 KB

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •