butt the gabion directly against the structure. There should be no reason to connect the structures. At the top, the gabion wall should be 1m wide; the base course will be around 2.5m wide, all of this depending upon the soil properties of the backfill and foundation soils.
A geotextile is...
A wire reinforced turf reinforcement mat might be something to investigate. This material (MacMat-R) has been used in the past to vegetate very steep soil nailed slopes and to vegetate erosion prone mountain slopes. Has been used as steep as 1H:2V. Wire reinforcement allows the use of rock...
gabions and reno mattresses have been used for decades in this type of application. The correct design may allow you to minimize the amount of stone required to provide adequate erosion protection.
They can also be filled with organic soil and vegetated. While the vegetation may not take...
I strongly suggest you contact companies that have experience with the design and construction of MSE walls of this size. Maccaferri and RECO have extensive worldwide experience with mining structures of this size. Past experience is critical on these structures.
With a very high strength geocomposite (700kN/m +), creep might not be such an issue. It might also possible to use woven steel mesh for reinforcement in this application - i think there was some work done in Edmonton years ago using woven steel mesh reinforcement.
I am located in Canada. If...
You might be able to some guidance looking into reinforced embankments over very soft soils and over voids. BS8006 may be useful or you could contact Linear Composites and inquire about geocomposites used for soft soil reinforcement.
Work was done in the late 90's in Ontario where a rotted timber crib and earth core dam was replaced with gabion baskets and geomembrane. The structure was 3-4m high and sitting on bedrock. It proved to be a very inexpensive option to the owner and was worked very well. The structure is a...
Gabion retaining walls are free draining structure. If the gabion is an option, this will permanent remove the requirement to 'control' ground water pressures. There are none on a properly designed gabion retaining wall.
Project has an odd spec were they are imposing a 5% tolerance on the minium fibre dosage. It was my understanding that this was normally a field test with jury rigged equipment, usually based upon sieving.
Someone mentioned something about seeing a referene to a 'washout machine' and I have...
Does anyone have any details on a 'fibre washout machine' for testing SFRC? I have heard rumours of a device available for sale, but I cannot find any details.
Any help would be greatly appreciated.
If I may add something to Fattdad's comments, your choice of materials to construct the retaining wall will also affect your design. Concrete is impereable, therefore you need to design in the drainage. Other materials may behave differently, thus making your life much easier or that much more...
