How To Build an Engineered Retaining wall & Avoid Contractors that cut corners
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- Опубліковано 18 жов 2018
- Some Contractors cut corners when they are building retaining walls. They try to circumvent the need for engineering by cheating on their designs when installing a retaining wall and they are setting the wall up for early failure. Here is the truth- A Retaining wall will need engineering if its: terraced, holding up a structure or is over 4 feet tall.
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Great video! The name of a retaining wall engineer is typically known as a Geotechnical Engineer. As a geotechnical engineer myself, I have designed over 1000 retaining walls. Your videos show the correct ways to construct projects properly. As an engineer, I help my contractors understand the proper way to do these things and why to do it. That way they learn and can carry it on to other jobs that may not need engineering and continue the good habits. This is apparent that you and your crew do this in all your jobs. I greatly appreciate your videos showing the proper way to do things as many contractors don't understand and it leads to problems.
To further help your audience with regard to the geogrid, there are 2 main types: Uni axial and Bi axial. Uni axial has strength in one direction and is installed perpendicular to the wall face. The stronger direction of the geogrid is typically the wider or thicker strands of the grid. In the video, you were using a uni axial grid. The biaxial grid has equal sized strands and has the same strength in both directions.
I applaud your construction of the corner wall. Having that extra block tail extend out rather than cutting it off gives that corner additional structural integrity.
I also want to mention to your viewers the importance of the drain section behind the walls. It is necessary to relieve the hydrostatic pressure (water) buildup behind the wall as it is the #1 reason for wall failure. The hydrostatic pressure is similar to a hydraulic jack that you use to change a tire but also acts horizontally, The groundwater builds up and pushes against the wall and can push it over. The drain section behind the wall pulls the groundwater away and relieves the pressure. This is similar to lowering a car after changing the tire with the hydraulic jack by turning the relief valve and letting the car down. The drain section acts as an open relief valve and drains the water away so the pressure can't build up and topple the wall.
The backfield behind the wall also needs to be properly compacted as Stan shows in the video. If the backfill is put in loosely, water will settle it and you can have a large slump of soil shift and blow out the wall.
I hope this is helpful and explains a few things that most people don't know. Keep up the great work on your projects and your videos. I look forward to watching more of them. Cheers!
I worked as a geotech engineer for a few years before transitioning over to structural. Both of you guys are correct that a lot of engineer just design it but may not have as much field construction experience to help when constructing the wall.
I worked as an inspector for a 30 ft high retaining wall where the contractor didn’t know much behind the design so didn’t notice a mistake in the plans. Goes to show having experience in both phases design and construction helps build anything.
Very valuable information Greg thanks
Could I pay you to design me a wall?
@@KRVKENx I think (but I'm not 100% positive on this) that engineers have to be licensed in the same state that their design will be used in. So you'll need to find an engineer licensed to do such work in your state.
Does the 3/4 clear and soil need filter cloth between it ? Won’t the soil migrate thru the 3/4 clear over time if there is no filter cloth ?
You and your team are top notch. I’m a Carolina boy living in Los Angeles and I can’t for the life of me find a team, company or foreman that takes as much pride in their work as you all do. I’d nearly kill to have you guys in our area. Keep up the great work and videos. You guys give me enough knowledge to know when I’m dealing with unqualified people. THANKS!!
I'm in the UK on lock down at the moment. Your videos have saved my sanity. Love them, you've got a great team. If you were in the UK you would be my go to builders. Everything on camera, nothing hidden. I wish you and your merry band of men all the best. Please keep posting.
Thanks so much Ethan, all the best to you too!
Love it, it’s the difference between a penciled whipped engineer and a practical engineer. Just because you understand the physics of how to build a wall doesn’t mean you have the experience of working with the people on the ground who have to install it and the manufacturers who build the materials.
Thanks William !
Yeah I think as an engineer or a contractor for that matter to get experience from the other side or at least learn some to where it makes their job easier. Glad I worked as a construction inspector behind designs I made to see how it’s constructed in person
I'm a home inspector in Hawaii. I just want to say that i love your content. It is very entertaining and informative. Please continue to make more videos
More to come Hanaro, thanks for all the support!
@19:00, the reason we state not to compact within 3 feet at the top of the wall is to prevent any expansive material from causing excessive damage to the top of the wall.
The structural fill is relatively isolated from the weather, and maintains the same soil moisture levels within a few percent all year round. The top few inches to a few feet depending on your region experiences wild variations in moisture content due to rain, humid weather, dry spells, baking sun, and the like. In northern climates, you get an added complication of frost heave. By leaving the top relatively loose (not so loose as to cause a person to sink in, but not packed solid either), natural settling will leave room for expansion and contraction of topsoil which tends to have higher expansion coefficients to boot.
You have done a fantastic job sharing an often overlooked and underappreciated element of engineering. A stone wall will stand the test of time built right, easily into the generations, possibly centureies. "Modern" homes will rot or burn to the ground long before.
Nice level of detail - folks can always fast-forward past explanations they don't care about, but it's great to have for the people who DO care. Thanks for the quality vids.
Thanks! 👍 I appreciate the input !
Everyone loves it when their boss shows up in sandals and a salmon colored shirt unexpectedly
I have watched 3 segments and have learned so much. KEEP showing the details!!
Will do, thanks a lot !
this is definitely the type of video I want to see
Thanks, glad you liked it!
Hands down the most informative video I've ever came across on the topic! You explained What, How, and Why all together in an integral way. Keep up the good work!
I absolutely love this videos for the amount of detail you put into your explanations. So many people skim over important things or just don't use all of the proper techniques and science. By far the best retaining wall videos on youtube. Thanks so much and keep making them if there's somehow any way to add new information!
I've watched lots of your videos. Yours are the most detailed and educating of any I've found. You supply the needed and essential information that has guided me to build my wall correctly, the first time: and showed me the things to avoid! Good job!!!
THANK YOU!
Been a mason my whole life, good to see contractors who care about their work and their customers.
Thanks for watching!
Do it once, do it right, no callbacks, get referrals! Win win!
I'm a civil engineer doing a masters in Geotechnical Engineering, and there's a specific class for designing retaining walls. The class is called Earth Retaining Structures, and so far we've learned about 20 different types. Yes, soil type matters, the type of backfill, soil slope above the wall, construction method, space available for construction, typical groundwater elevation, and so forth and so on. Most retaining walls are either cut or fill walls, and either externally or internally stabilized. The type shown in the video is a fill wall with an internally stabilized mechanism. The type of facing is modular block, and the soil is retained using a geogrid or geotextile. Curious enough, the blocks are mostly aesthetics and do not function as an structural element for supporting the soil
Thank you, this was incredibly helpful. The last time i built a retaining wall it was 20 years ago and the materials and my previously learned methods have definitely changed.
For sure, glad to help Adam!
This has been super helpful stan, I'm more of a paver guy, so to see and hear technicalities of retaining walls is awesome
Excellent public service that you provide, educating everyone about this!
Setup a camera in the corner and do a timelapse throughout the whole process
im with you on that, but i love this types of videos helloworld!!!
Include a little detail about the footing construction of this retaining wall, and drainage set up.
Best retaining wall video on youtube. I've seen a lot of your stuff before but this one got so detailed it really helped me understand. Thanks!
Stan, with regard to the formula for rock tonnage, you're making things more difficult than they need to be.
sq.ft.X200/2000=sq.ft./10
Simplify and just divide your square footage of wall surface by ten and that gives you the needed tonnage of rock.
that 64 tons or rock told me that the square footage of the wall in question is 640 square feet without calculator, or paper and pencil, simply because, mathematically, times 200 divided by 2000 equals divided by 10.
Try it both ways and tell me I' wrong!
I know you're here to help make things go as smoothly as possible for everyone in the business, so here's my contribution to that concept!
I lone your channel, especially as a fellow native Twin-Citian myself, and I'm glad I subscribed!
God bless!
I came here to say this :)
Dave Lindstrom your right on!
X 200 isn't that a coefficient of the thickness of the granite/ gravel fill. 🤔
i saw this video a year ago and was blown away and lost. but after getting the concept down I can really understand it better. you do an excellent job of explaining everything. you actually MAKE people want to build it the right way by explaining in detail. im about to do my own sloped driveway retaining wall because the cinder block and mortar one from 1969 is leaning badly. but after rewinding this video a gabillion times and really taking in everything you said...I get it lol!! A1 video bro!!!
Your channel should get a UA-cam public service award. UA-cam make this happen and make it be given to all UA-camrs doing something good for people.
Appreciate the great comments , thank you !
No such thing as "too much detail". Well done. Thanks.
No problem 👍 Thanks for watching !
Great explanation. I'm getting ready to do an outcropping wall so I'm looking at some of you videos to refresh my memory since I don't do a lot of walls. Thanks Stan
This is great content. Never too much detail when you are talking about building an expensive wall for a customer. Thank you and amazing work.
I was just flipping thru channels.
After 10 of your videos, I want to build a retaining wall and redo my yard.
Great explanations and looks like you have a great crew.
Instantly my favorite video I've watched from you so far. Please, more of these technically oriented videos would be great! Also, the new video camera is fantastic! Great video!
Thank you and appreciate you watching !!
I'm considering doing a few retaining walls on my property (myself) and this video was great. Love your vids and enjoy watching them. As an amateur landscaper I enjoy them immensely!
Thanks Joey, I am glad that you enjoy them, hope your walls turn out great!
Great video and great tips man. Thanks for all the information before I take on my own retaining wall project. Keep up the great content.
Glad it was helpful!
I've been building Versa-Lok walls over 20 years for the best instructional videos I've ever scene thank you
Stan, your integrity and work ethic are apparent in the work you do. I loved the video. Thank you.
This was an excellent demonstration of an incredible retaining wall done in the most professional way imaginable. I’m fixing to erect a couple of retaining walls. One will be about 3 feet tall another approaching 6 feet. So your educating video is right on target for me! Thank you, Stan.
Love it! There's alot of retaining wall "experts" here on the youtube, but you guys are the gold standard
Wow super appreciate that 🙏👊
Thank you for your detail explaination. I am in the process of getting ready to build my wall and all your wisdom is really appreciated.
I am from Trinidad WI.
Love it! Makes me much more confident for when I tackle an install of my own
Love the video! Great seeing folks that take pride in what they do, do it right and align to a system. Wish we had more of.this showing the youth of today what it means to be a blue collar professional. Inspiring.
We stay busy fixing improperly installed hardscaping. No geogrid, proper drainage, etc. You cannot cut any corners on installs if you want them to last. Great video Stan!
Great video! Im new to landscape install work and that was very helpful. Going to be installing a new retaining wall here shortly. Looking forward to using your tips and tricks for the job. Keep up the good work! Thank you
Love them I just did a job like this and you've helped me do it correctly! Thanks Brother. Good taking to you at GIE!
Always enjoy your videos and how straight up you are about doing it the right way. It's your name on line and the right way is selling yourself... I see so much crap out in the field
You are better than a so called skilled Instructor. I appreciate your time, knowledge and efforts to show people like me how to build retainer walls the proper way and not any old kinda of way. Shalom to you.
Your videos are very informative and very useful for those of us new to this area. The information you have shared is so valuable for us to understand the process, the amount of work, and material that goes into retaining walls done right. I highly recommend your videos and appreciate you sharing this information. Thank you.
Very educational video! Doing my first project this coming week.
Impressive! I've been building walls for many years. I thought I tended to over-build my retaining walls. After watching this video I realize two things. One, you are a very knowledgable, experienced professional! Two, I could of done better on my jobs. Thanks for the education and motivation!
You're welcome David, thanks !
You are an excellent instructor!! Thanks for the no nonsense, experience based, and scientific approach! Your humor is good too.
Thanks a lot Walton, appreciate it !
Love your videos, you give it straight with no bs! I would love to see more on the base layer French drain. Do you have to run it off somewhere? Also a time lapse of the build up behind a wall would be killer!
Details about the angle of your base block to prevent lean in higher walls is what I would like to see in a retaining wall video. Thanks Stan!
Your wall should never be angled it should be completely level... If you put lean on it it will just be exagerated in the finish product specially the higher you go. So the proper way would be to step back
Yes more vids like this one. Love to watch you do the work haha. Honestly though my boss taught me to do things the same way you do them. It's cool to know that my crew does it right.
The shirt you're wearing is perfect. You're building a retaining wall; no one expects you to be in a tux! : ) Great video, thank you!
I really appreciate your videos. I'm a new contractor and this is invaluable info. Thank you sir and God bless!
Happy to hear that they help you out, thank you !
i want longer videos of your jobs like you waking up loading up the tractors and like some of the driving there and unloading the machines
He doesn’t believe in doing that, he actually made a video of “Most common mistakes people make building retaining walls”
Awesome work man ! I do retaining walls and pavers ! I just recently started tuning my own crew .. we re building a sea wall now in Florida on a golf course and it’s new experience even for my company .
Love all your videos , has helped me stay focused at work .
I'm glad I was able to watch the whole video. Very informative. Inspired me to want to sell a retaining wall project, maybe. Thanks. That first shirt you were wearing almost threw me off from watching, btw. Thankfully, I didn't judge your video based on your appearance.
Great video. Very helpful as I found this video whilst beginning a paver patio remodel. Thanks for the great informative content!
You're welcome and I hope the patio turns out great !
I really like watching your vids. I will be building or having a wall built next year I hope. Need a 10ft by 100ft wall built so its going to need to be engineered for sure. So I appreciate these vids. Very informative.
Very happy that the video will help ! Good luck with the wall!
Great video. I built a few small retaining walls in college for my employer at the time, who didn’t teach me (and likely didn’t know) any of this information. The walls still stand today, but I wish I knew this information then.
Not sure when the new intro started but its cool! I really like these type of videos, I get some entertainment and learning at the same time.
I love these videos, I wanted to see you start the tiebacks from the start.
Very nice job. I wish you were in my area of NC. I need three good size retaining walls constructed. You did a very through job of explaining the retaining wall process. Thanks for the video. Take care and God bless.
I would love to see the full process of one of our retaining wall jobs from start to finish and that was a bad ass vid you covered a lot of info I think when I try to get into landscaping this summer I'm gunna have a pretty good bank of knowledge goin it to the feild
Thank you Ryan !
Great video lots of behind the scenes information for a homeowner having a retaining wall built. Keep up the great work Stan
Thank so much George, happy you like the video
1) how do you start base of wall? 2) how do you determine placement of geo grid? 3) What block do I need?
watch his other videos.
Fantastic video Stan!! Those walls are incredibly built.
Love these videos they r a tremendous help. Im just learning about all this stuff and caint thank u enough for spending the time to make these videos. Me and my cousin met u at the gie this year and as there for ur talk at the jobber both on thursday and both r constering getting involved with ur mastermind group. He is going to beat me to it because i have some big financial concerns coming up and dont know whats going to happen but will be joining as soon as possible.
You have made a fan of me with your details and explanations. A true craftman can and will explain everything, including do's and don'ts. I wish you where in Los Angeles for the project I have that is similar to this one. My double retailing wall holds up a higher elevated back yard to a house. I want a single retailing wall.
Really enjoy and appreciate the video sharing and the Do’s and Don’t’s in retaining walls.
Two quick questions - What is the max slope you can have at the top of a retaining wall? Also, how high are the compacted soil lifts, every two blocks?
Thanks for the awesome video.
Awesome video, always love the in depth how-to's!
Great video I learned a lot so that way if I ever get this done I will know what they're doing. Watched it all the way till the end.
Thank you Ty, so glad that it may help you out sometime !
YOU do a great job im sure you have mulch videos with detail just like this i will have to find them. Keep up the good work.
Thank you !
Loved the video👏 looking forward to learning more in the next!
Much better video. Better job of discussing specifics and making sense. Wondering why that original wall material didn’t push into the block wall foundation on that house. I also like your comment that codes, inspectors, and permits don’t give a crap about keeping a wall from failing... good job!
Excellent video, with great detailed explanations. Very helpful.
Perfect video. More info the better. I didn’t know how to compact and prep for rain. This caused destruction on a wall(base became soup and had to be redone) I was doing last year(first one over 4’). I learned the hard way and got kicked off the property because the home owner lost faith in me(don’t blame him). The more technical info given visually the better.
Thank you and thanks for watching
Great video!!! Can I say Perfect tutorial and thank you for the insights keep them coming thanks again!!!
Stanley, I really appreciate all the videos you have put on here! Wish I could see one with an outside 90 degree corner with the Versa Lok Blocks to see the step by step how you do it.
Doing my wall now here in Nova Scotia, near Halifax, and find that the advice I got from the company who sold me the blocks leaves me with alternating half blocks to glue together, without the possibility of putting the pins in. Hope it works well. Have lots of drainage stone (the 3/4 clear that you praise).
Thanks again for these videos!
Mike
Nice work and Stan you explained it perfectly understanding the dynamics of the environment and product to hold the load into place
Thank you !!
Excellent! I watch these because of the detail so I can learn.
Love the subject, Lots of so called contractors need to see you build a wall properly, Guys this is the RIGHT WAY!!!!!! Don't short change the client or your COMPANY'S Reputation. Back to the point Yes keep up the shows, Kevin Kevlar Construction Inc, Charlton Massachusetts
Appreciate the comments. Thanks !
Amazing presentation. Held my attention making learning easier.
That's great, I really appreciate that Clare!
Stanley , you seem very passionate about walls. Love the channel. Keep it up.
Glad you like the channel and thanks for watching !
You guys do nice work. Thanks for the education I now know what I need to do.
Great video as always. Would love to see how to plan out such a job and the staging to get all the lines and angles right
Awesome video man. Super informational I really appreciate this
I like these kind of videos. Thank you for sharing the information with us.
Great video brother keep up the awesome work have a great weekend
Thank you. I love the detail. Keep the videos going please.
This guy is my inspiration. Thanks for the shows.
Awesome video I enjoyed how you involved specifics like formulas etc. The more detail the better in my opinion
Appreciate it Mike, thanks!
Learned a lot. I think this video will help both the contractors and consumers. 👍
Love that material!....Eventually, might get to work with it..
Full of good info. Very nice video. I never thought about not compacting the 3ft where you put the stone. I didn't know you weren't supposed to do that.
Thanks! Glad the video was helpful.
These are the best kind of video's. Informative on the issues that arise when both designing and constructing structures/projects and highlight the areas where mistakes/error/neglect occur. i will also say that i 100% agree with you on picking the correct type of engineer for the project your doing. I am a Civil Engineer that works on bridges (specifically concrete and slab systems) when i start talking to my college that handles the geotechnical side of things yea i can understand what he is explaining but i do not have the high level knowledge about construction practices (at least yet) that go into build a structure . In my experience engineers are kind of like insects we specialize in one thing, and are ok-ish at a lot of things.
I love all the detail you provide. Please, keep it up.
Thank you Ronald, will do .
Awesome Video, This is what I want to see in UA-cam. Thanks Stanley.
Thank you Juan !
I woùld say you left alot out but you did awesome!! Bc like said there coulda been more shown but you did an excellent job!
Your info is always spot on even when your shirt isn’t! Lmao. Really though, great info.