On soft soils
Embankments constructed on a cohesive or alluvial soil may be subject to settlement due to the nature of the foundation soil.
A number of Maccaferri solutions exist to reduce the effects of settlement;
- MacDrain® vertical drains can be used to accelerate the consolidation of the soil
- MacTex® H geotextiles to separate poor strata from better quality embankment construction materials
- MacTex® W1 and W2 woven geotextiles to reinforce and separate the foundation materials
- MacGrid® WG geogrids
- Paralink high strength geogrids (up to 1350kN/m) to reinforce the embankment foundations
A combination of these solutions is often required to meet the service life and serviceability settlement requirements of the project.
Note that as ALL geogrids and geotextiles (including Maccaferri geogrids using aramid fibres) need to strain (extend) prior to providing functional reinforcement, it is necessary to be sure that the serviceability strain limits of the embankment are compatible with the expected long-term strain of the geogrid.
A thorough knowledge of the product performance over time, in combination with specific geotechnical skills is therefore essential. Maccaferri’s engineers, with the use of design software, are able to provide an invaluable contribution towards the solving of these types of problems.
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