T-wall Retaining Wall

[Eboni Kleifgen]

TWALL is a gravity retaining wall system, consisting of modular precast concrete units and select backfill. The system is a simple proven solution for grade separation on highway, bridge, railroad, water, commercial applications, and more.

T-WALL units come in three sizes, each with its own advantages depending on the application, wall size, and other criteria. Each of the three unit types accommodates varying stem lengths, as well as extended-height and sloped tops for the uppermost wall course. A wide range of standard and custom architectural treatments can be applied to the front face. The robust precast units efficiently provide the stability needed for gravity retaining walls with extreme height and loading.

With more than 850,000 m2 now installed, T-Wall is used wherever conventional retaining walls, non-gravity cantilevered walls, anchored walls, mechanically stabilized earth (MSE) walls, and prefabricated modular walls are considered. Suited to build in areas having restrictive excavation limits, engineers specify this solution for building grade separations for roadways and railways, and for earth retention along coastlines and waterways. Urban and residential developers also appreciate T-Wall for landscaping and commercial work sites.

For a conventional T-Wall installation, as the units are stacked, the length of the stems decreases as the wall height increases, therefore reducing the amount of excavation and backfill quantities required to install as compared to other gravity wall systems.

Terre Arme engineers are experts in mastering soil-structure interaction design. The fundamental design approach assures that the stem allows for pullout resistance against the lateral earth pressure exerted on the rear of the facing, therefore internally stabilizing the structure. The basic design of a T-Wall addresses both the internal and external stability of the wall system and includes, but not limited to:

The Group brings together an unparalleled array of construction and engineering expertise. Soletanche Bachy, Menard, Terre Arme, Freyssinet, Nuvia and Sixense provide technical excellence to ensure structure performance and sustainability.

Each of our brands has its own expertise and its own range of solutions and services. Soletanche Freyssinet supports the expansion of its brands by providing the resources to extend their worldwide networks and broaden their technology portfolios.

Fort Miller is a licensed manufacturer of the T-WALL retaining wall system. Assembled walls typically have heights ranging from 3 ft to an impressive 45 ft in height. T-WALL units feature a front surface of 5 ft wide by 2 ft 6 in high, or 7 ft 6 in wide by 5 ft high, with varying weights. Customization is key, with finishes spanning from a modern smooth form surface to exposed aggregate, along with custom textured formliner options replicating stone, rock, brick and more. Add a touch of color to the concrete mix for additional customization.

T-WALL, approved for use by several Departments of Transportation caters to a spectrum of applications, from simple to highly complex projects. Versatility extends to its use for box culvert wingwalls, bridge and railroad overpass abutments, complete with options for various parapets and custom-made sloped top units. Custom design your infrastructure with the unmatched adaptability of T-WALL. Reach out to one of our sales team members today.

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Off the top of my head with out seeing the model; Sounds like the code set doesn't have link styles that show in sections, model space and plan view types assigned to the retaining wall links. The retaining wall links have to be added to the datum and top surfaces and the surface set to override top or bottom links for top and datum surfaces, respectively.

I'm doing a residential addition that requires the terrain to be built up in front of the addition. I've created a flat area (for parking) using the Elevation Region Tool. I've placed a Terrain Wall behind it. I've been adjusting things and watching help videos for a couple of hours but can't figure out how to make the terrain behind the wall follow the existing terrain.

I've attached a screenshot of the plot plan and remodel plan with the problem areas indicated. Does anyone have a solution on how to accurately modify the terrain behind the wall to get it follow the existing terrain line?

I'm getting close. @Kbird1, I've used your recommendation for a terrain break along the top of the wall. I tried using an elevation region at the bottom of the wall but got a little better control using an elevation line. I've attached a screenshot of my progress. I can't seem to get the grass off the back side of the retaining wall. When I move it closer, the terrain becomes sloped behind the wall as if it connects the the higher terrain.

I make my Elev. line style Orange and give regions a 95" orange fill as well to make this easier to see , the orange will look darker anywhere it overlaps another ER for example. Terrain Breaks I make purple .....and dashed usually

@glennwso you put your walls in after you do the terrain mods? I'm using a terrain wall but based on discussion I'm going to change to a foundation wall. @Kbird1 thanks for the file. @HumbleChiefthanks for the other tips. I had to knock out a few other things this afternoon but will report back next week when I'm back on that project. Have a good weekend all.

A Terrain Wall isn't a wall - it really is a terrain path - more like a solid, that will follow the terrain, cut and fill the terrain when running parallel to the slope and will follow the terrain slope when running perpendicular to the slope.

@Kbird1, @HumbleChief, and @glennw thanks for your input. I see what you mean that the terrain wall is actually a path. I deleted it and used a foundation wall (what I will mostly use from now on. Everything is looking good!

If you see a hill and think would be good to turn that into some level ground, a retaining wall may be in your future. There are many different types of retaining wall systems, and here we venture to educate you on the different options you have for retaining walls. This list is meant to be a quick primer, and not exhaustive. Want to learn more? Take a course.

I like this stone retaining wall and planting area, sort of. It rises up and goes away in a kind of nice, natural way. I think I would have used some larger boulders throughout, but it hangs in there.

The extension will take top of wall and bottom of wall coordinates, embedment depth below grade, freestanding height above grade, the layout line of the retaining wall and the proposed design section (multi-depth gravity blocks) then draw the retaining wall three dimensionally.

Blocks setback every course (about 1 inch or 2.5 cm). More than likely a layout line would need to be established for every course and blocks drawn along that line. Blocks are drawn on a running bond. Outside corners require special corner blocks. Radii may require fitting blocks to be inserted to maintain running bond. A report of the final block count would be needed.

An information series from the national authority on concrete masonry technology NCMA TEK 15-8A 1 GUIDE TO SEGMENTAL RETAINING WALLS INTRODUCTION Segmental retaining walls are modular block retaining walls used for vertical grade change applications....

the next step on the curve is add continued sections, the number and deg between blocks seems to me the best approach, then can build to best approximate to a plan, working to block sizes or known cuts

All of the units incorporate a triangular section in the stem perpendicular to the face that allows the weight of the backfill to bear on the units below, thus transferring downward pressure, which results in a stabilizing effect. In combination, the units create a coherent gravity mass designed to resist overturning, sliding and bearing failure. The design methodology follows the well-accepted AASHTO guidelines of a conventional Precast Concrete Bin Wall.

Gravix entered the highway market after becoming the first all precast traffic barrier to pass the MASH TL-4 impact test. In 2013, a test Gravix wall was constructed at the Texas Transportation Research Institute (TTI) testing and proving grounds in College Station, Texas. The test wall successfully passed the MASH TL-4 test and upon a thorough review, Gravix received its Letter of Eligibility from the FHWA.

To allow the top of the retaining wall to follow grade, angled top units are cast on a tilt table. For Gravix retaining walls that require a traffic barrier, a leveling unit is installed directly below the Gravix traffic barrier unit, also cast on a tilt table, to allow the Gravix traffic barrier to follow grade.

The principle of the construction of retaining walls consists in the fact that on the borders of the road, fathers are created, which are projected onto the terrain. Next, the length between the points is measured and sorted. The minimum length between points is set here.

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It is important that the angle of relief cutting should be 45 degrees. Therefore, I create a vector from points on the edges of the road and retaining walls at an angle of 45 degrees, and at the intersection of the vectors with the relief, I find points.

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It is a pity that you do not have a political opinion sitting in Italy. It is very unfortunate that you do not care about the fact that Russia is killing women, children, and your fellow architects. I have nothing against Italy, it is a beautiful country that I would like to visit someday.

This is an open forum that does not require identification by license number. If a person does not have a rhinoceros and reads this forum, is it also strange?

The part of the script that I downloaded seems to have no third-party plugins. There is only C# code that I found on the forum.

Thank you

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