Design modifications for a square-headed construction shovel
Design modifications for a square-headed construction shovel
(OP)
We, a group of 3 civil engineering students, are assessing a range of square-headed shovels on the market, with a view to designing a new product that incorporates modifications suggested by users of currently available brands. It would be really helpful to us if any readers of this post who have experience in using a square-headed shovel (or, indeed any other kind of shovel) would be generous enough to tell us about the experience. We are interested in, for example, opinions about the weight of the implement, its dimensions, materials, the shape and comfort of the handle, the shape and length of the shaft, whether it was suitable for use by left-handed people or by smaller people. If you could design your perfect shovel, in what ways would it be different from the one you have used? We'd be really happy to hear from you.
RE: Design modifications for a square-headed construction shovel
It is a rudimentary instrument that serves its purpose well and has limitations that are well known. Its performance depends largely on the capabilities of the user...both in brain and brawn.
RE: Design modifications for a square-headed construction shovel
RE: Design modifications for a square-headed construction shovel
We are sorry to hear that you object to our use of the word 'implement'. Thanks for correcting us by informing us that the shovel is a 'tool'. Your response has therefore been doubly useful to us.
RE: Design modifications for a square-headed construction shovel
First, you identified yourself as a student...honesty is good
Second, you have a legitimate study, although it has likely been done by every producer of shovels you can imagine.
Leibe....I was correcting my own use of the word "instrument" not your word "implement". Your term was more correct than my initial offering!
As for using a shovel, I have done so many times and still do. I'll give you the benefit of my observations; however anecdotal they might be:
Wooden handled shovels are still the norm because of cost and consumer acceptance. They can be gripped easily without significant gripping force and have some ergonomic features that are useful, such as a slightly larger diameter near the top for "pulling" the shovel. Some shovels actually have hand-grips for pulling...mostly on shorter shovel handles. Wooden handles are non-conductive in case you cut into an electrical line.
Fiberglass handles are lighter in weight but seem a little "unbalanced" when compared to the wooden handles. They are heavier on the blade end. They also vibrate more when the shovel blade hits refusal on things like roots or buried debris. They are also non-conductive.
Steel handles are useful for durability in certain applications (foundries, smelters, etc.). Outside that, they can be dangerous because they are conductive. The same is true of aluminum.
Steel is the better material for the blade, since aluminum is not as durable and would have to be thicker or a specific alloy to achieve the same level of durability. Aluminum is commonly used for blades on snow shovels because the blade can be quite large without being overly heavy.
You might want to research why the flaring on the sides of the blade usually is done at a specific angle and what difference the height/length of the flare makes. Look as different specialty shovels....there are many. Look at why some shovel blades are serrated and most are smooth.
Good luck with your study.
RE: Design modifications for a square-headed construction shovel
Nice going. However, this being an engineering forum, I doubt that many engineers have spent a lot of time using hand tools out there, or elsewhere. There are a few fortunate guys that grew up using a lot of hand tools to then be able to apply that experience here. Perhaps a mining engineer site might be better, but construction laborer forums, if available, would be the best place to ask I think. You and I, Ron, I think are the exception. As a grad student I dug test pits for density tests and asked the laborers on the job if I could leave my shovel there a few days. They replied "Fine, don't worry about anybody stealing it here", implying that it was of little value. Even there I had trouble with the union, since they wanted to dig the pits. I had to make some excuse about accuracy being affected.
RE: Design modifications for a square-headed construction shovel
RE: Design modifications for a square-headed construction shovel
RE: Design modifications for a square-headed construction shovel
RE: Design modifications for a square-headed construction shovel
Unfortunately, this ploy does not work at home...
RE: Design modifications for a square-headed construction shovel
Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East - http://www.campbellcivil.com
RE: Design modifications for a square-headed construction shovel
RE: Design modifications for a square-headed construction shovel
You could always add a clock.
B+W Engineering and Design
Los Angeles Civil Engineer and Structural Engineer
http://bwengr.com
RE: Design modifications for a square-headed construction shovel
As a New England Yankee, I have to say that square-edged shovels are only useful for loosely stock-pile materials and shoveling manure out of an animal's pen.
For real digging in undisturbed New England soil, the ONLY answer is a pointed, round bottom shovel. "D" handle is a must for better control.
I do agree that I'd happily work outside in the Spring & Fall with a shovel (at my pace) for half of my usual billing rate. In the Summer though, an A/C'd office is best.
Ralph
Structures Consulting
Northeast USA
RE: Design modifications for a square-headed construction shovel
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Design modifications for a square-headed construction shovel
Weight, too, is everything - shovel trenches all day long in the Folsom California sun and you will be cursing every ounce of that shovel!
RE: Design modifications for a square-headed construction shovel
Mike McCann
MMC Engineering
RE: Design modifications for a square-headed construction shovel
You shouldn't have been nice to a student who cannot read the directions.
Mike McCann
MMC Engineering
RE: Design modifications for a square-headed construction shovel
RE: Design modifications for a square-headed construction shovel
Mike McCann
MMC Engineering