Slope stability assessment is undertaken to evaluate potential failure of slope or landslide. These assessments are in general conducted on both natural or man-made slopes e.g. road embankments, cuttings, and hill sides to determine factor of safety of these slopes.
During this process, site visit and site investigations are conducted to collect information about the ground conditions, hydrological conditions, slope geometry, time availability, local experience, and the client requirements.
Once the above information is available, different options will be presented to the client for their preference in terms of cost, timing, and local contractor’s capabilities. All the options presented to the client must meet Australian and local Standards.
Typical options of slope stability remediation methods include but not limited to the following;
GABION WALLSare used for low height slopes. In general, no foundation is required for the gabion wall unless shallow groundwater or very weak soil at the wall base. Typical example of a gabion wall is shown below.
POST AND PANEL RETAINING WALLconsists of a series of posts and panels that simply slot together to form a durable, solid structure to retain earth. These are structurally engineered, prefabricated/precast concrete retaining wall system.
SOLDIER PILED WALLSare a form of embedded retaining wall that are used to retain the soil behind to allow the ground level in front of the wall to be lowered, the retained height can be increased with the use of propping or anchoring. These are commonly used for slope stabilisation, support of excavation and retaining solution for soils.
SOIL NAIL WALLuses grouted, tension-resisting steel elements (nails) to reinforce in situ soils and create a gravity retaining wall for permanent or temporary excavation support.
SPOT BOLTSare used at certain spots to prevent failure of individual blocks and wedges. The bolts must be tensioned. Massive rock with relatively few discontinuities subjected to high in situ stress conditions. Heavy bolts or dowels, inclined to cross rock structure, with mesh or steel fibre reinforced shotcrete on roof and sidewalls.
ROCKFALL NETTINGis most adopted method of slope remediation works for rock slopes. These will be further customised based on the geometry and ground conditions. Typical situations include.
The location of anchors and extent of rockfall netting will be decided based on the actual geometry of the slope.At GEOCONSOL, we deliver a tailored suite of the following services to accommodate project geology, complexity, diverse design solutions, and safety requirements.
We use advanced techniques, including limit equilibrium and finite element methods, to determine the factor of safety of the slope and identify any potential failure modes. If necessary, we can design remedial measures such as installing retaining walls or drainage systems to improve the slope stability. Our slope stability assessments are crucial for ensuring the safety of people and infrastructure, particularly in hilly areas, mining and construction sites, and natural slopes prone to landslides.
GEOCONSOL, has certified resources to provide the above services.
At GEOCONSOL, we deliver a tailored suite of the following services to accommodate project geology, complexity, diverse design solutions, and safety requirements.
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