Stabilization system for soil slopes
AssigneeDST Consulting Engineers Inc.
InventorMike Fabius
Life of this patent
Estimating the term…
Abstract
A method of stabilizing slopes of a soil embankment is provided using a stabilization system for slopes having generally less than 45 degrees of inclination from horizontal. The system comprises a plurality of soil nails which are penetrated into the slopes to provide internal soil stability and a biotechnical facing on a surface of the slope to inhibit surface erosion and shallow failure of the slope. A geosynthetic layer comprising a mat, mesh or fibrous material is laid across the slope adjacent the surface to assist in establishing vegetation thereon. A retaining wall structure is preferably mounted on the crest of the slope to extend transversely to the slope. The retaining wall structure at the crest provides a stable base for supporting the embankment shoulder.
Claims18
A method for stabilising soil within a slope having a surface lying less than 45 degrees of inclination from horizontal and a failure plane below a surface of the soil, said method comprising:
- providing a plurality of soil nails;
- stabilising the internal soil of the slope by penetrating the plurality of soil nails into the soil across the failure plane of the slope;
- establishing vegetation adjacent the surface of the slope, the vegetation being arranged to generate roots which penetrate through the surface into the soil;
- mounting a retaining member in the form of an elongate plate member adjacent a crest of the slope;
- and
- orienting the plate member to extend substantially perpendicularly to the surface of the soil.
A stabilisation system in combination with a slope for stabilising soil within the slope, the slope having a surface lying less than 45 degrees of inclination from horizontal, said system comprising:
- a plurality of soil nails, each being generally greater than 2 meters in length and having a soil penetrating end penetrated into the slope and a surface engaging end engaged at the surface of the slope;
- the surface engaging end of each soil nail including a plate-like soil retaining member mounted thereon lying in a substantially common plane with the soil nail and which penetrated into the slope with the respective soil nail, the soil retaining member lying transversely to the surface of the slope in a crosswise intersecting manner so as to retain soil at the surface of the slope;
- and
- an organic facing adjacent the surface of the slope.
A stabilisation system for stabilising soil within a slope having a crest along a top of the slope and a surface lying less than 45 degrees of inclination from horizontal, said system comprising:
- a plurality of soil nails, each having a soil penetrating end for penetrating into the slope and a surface engaging end for engaging the surface of the slope;
- the surface engaging end of each soil nail including a soil retaining plate mounted thereon which is arranged to be penetrated into the slope with the respective soil nail with the soil retaining plate lying transversely to the surface of the slope in a crosswise intersecting manner;
- a retaining wall structure arranged to be mounted on the slope to extend in a longitudinal direction of the wall structure along the crest of the slope adjacent the top of the slope, the retaining wall structure comprising an elongate plate member oriented transversely to the surface of the slope in a crosswise intersecting manner;
- and an organic facing adjacent the surface of the slope.
Dependencies are inferred from the claim text.