Ground Improvement Techniques

Aggregate Pier – A ground improvement technique that involves the install… #

Aggregate Pier – A ground improvement technique that involves the installation of closely spaced columns of compacted aggregate to improve the bearing capacity and reduce settlement of weak soils.

Anchored Displacement Pile – A ground improvement technique that uses a d… #

Anchored Displacement Pile – A ground improvement technique that uses a displacement pile with an anchor at the bottom to increase the resistance to tension and uplift forces.

Beam and Plate Load Test – A method used to determine the ultimate bearin… #

Beam and Plate Load Test – A method used to determine the ultimate bearing capacity and settlement of improved ground, in which a rectangular or circular load is applied to a concrete beam or plate resting on the ground.

Compaction Grouting – A ground improvement technique that involves the in… #

Compaction Grouting – A ground improvement technique that involves the injection of low-slump concrete or mortar into the ground to increase the density and strength of weak soils.

Consolidation – The process of reducing the volume of a soil due to the a… #

Consolidation – The process of reducing the volume of a soil due to the application of an external load, resulting in an increase in soil density and strength.

Deep Mixing – A ground improvement technique that involves the mixing of… #

Deep Mixing – A ground improvement technique that involves the mixing of soil with cement, lime, or other binders to improve its strength and stiffness.

Dynamic Compaction – A ground improvement technique that uses high #

energy drops of a heavy weight to compact and densify weak soils.

Electrical Resistivity Test – A method used to determine the soil's resis… #

Electrical Resistivity Test – A method used to determine the soil's resistance to the flow of electricity, which can provide information about the soil's physical properties and groundwater conditions.

Expanded Polymer Stabilization – A ground improvement technique that uses… #

Expanded Polymer Stabilization – A ground improvement technique that uses expanded polymer foam to fill voids and improve the stability of weak soils.

Frap Friction Pile – A ground improvement technique that uses a hollow st… #

Frap Friction Pile – A ground improvement technique that uses a hollow steel pipe with a cutting edge to install a pile by friction, without the need for excavation or drilling.

Geophysical Survey – A non #

destructive method used to investigate the subsurface conditions of the ground, using various physical principles such as seismic waves, electrical conductivity, and ground-penetrating radar.

Ground Improvement – The process of enhancing the physical properties of… #

Ground Improvement – The process of enhancing the physical properties of the ground to increase its bearing capacity, reduce settlement, and improve its stability, using various techniques such as compaction, mixing, grouting, and reinforcement.

Heave – The upward movement of the ground due to the swelling or expansio… #

Heave – The upward movement of the ground due to the swelling or expansion of soil or rock, often caused by changes in moisture content, temperature, or chemical reactions.

Jet Grouting – A ground improvement technique that uses high #

pressure jets of grout to erode and mix the surrounding soil, creating a column of improved ground with increased strength and density.

Lime Pile – A ground improvement technique that uses lime #

treated piles to improve the strength and stability of weak soils, by increasing the pH and calcium content of the soil.

Mandrel Vibroflotation – A ground improvement technique that uses a vibra… #

Mandrel Vibroflotation – A ground improvement technique that uses a vibrating mandrel to penetrate and compact the soil, creating a column of improved ground with increased density and strength.

Penetration Test – A method used to determine the soil's resistance to pe… #

Penetration Test – A method used to determine the soil's resistance to penetration, using a standardized probe or cone, which can provide information about the soil's density, strength, and stratification.

Permeability – The ability of a soil or rock to allow the flow of water o… #

Permeability – The ability of a soil or rock to allow the flow of water or other fluids, expressed as the coefficient of permeability or hydraulic conductivity.

Pile Load Test – A method used to determine the ultimate bearing capacity… #

Pile Load Test – A method used to determine the ultimate bearing capacity and settlement of improved ground, in which a vertical load is applied to a single pile or a group of piles.

Preloading – The process of applying a surcharge load to the ground to in… #

Preloading – The process of applying a surcharge load to the ground to induce consolidation and increase its density and strength, prior to construction.

Reinforced Soil – A ground improvement technique that uses various types… #

Reinforced Soil – A ground improvement technique that uses various types of reinforcement such as geogrids, geotextiles, or steel strips, to increase the strength and stability of weak soils.

Sand Compaction Pile – A ground improvement technique that uses a hollow… #

Sand Compaction Pile – A ground improvement technique that uses a hollow mandrel to compact and densify the surrounding soil, by vibrating and injecting sand or other granular materials.

Shear Strength – The ability of a soil or rock to resist shear forces or… #

Shear Strength – The ability of a soil or rock to resist shear forces or deformation, expressed as the angle of internal friction or cohesion.

Soil Nailing – A ground improvement technique that uses steel bars or cab… #

Soil Nailing – A ground improvement technique that uses steel bars or cables to reinforce and stabilize weak soils, by providing additional tensile and shear resistance.

Stone Column – A ground improvement technique that uses compacted stone o… #

Stone Column – A ground improvement technique that uses compacted stone or gravel columns to improve the bearing capacity and reduce settlement of weak soils.

Surface Roughness – The texture and topography of a soil or rock surface,… #

Surface Roughness – The texture and topography of a soil or rock surface, expressed as the average roughness or waviness, which can affect its frictional properties and stability.

Vibro Stone Column – A ground improvement technique that uses a vibrating… #

Vibro Stone Column – A ground improvement technique that uses a vibrating probe to compact and densify the surrounding soil, by injecting stone or gravel through the probe.

Vibrodisplacement Pile – A ground improvement technique that uses a vibra… #

Vibrodisplacement Pile – A ground improvement technique that uses a vibrating probe to install a pile by displacement, without the need for excavation or drilling.

Vibroreplacement Stone Column – A ground improvement technique that uses… #

Vibroreplacement Stone Column – A ground improvement technique that uses a vibrating probe to replace the surrounding soil with compacted stone or gravel, creating a column of improved ground with increased density and strength.

Wick Drain – A ground improvement technique that uses a vertical drainage… #

Wick Drain – A ground improvement technique that uses a vertical drainage system to accelerate the consolidation process of soft soils, by reducing the drainage path and increasing the drainage capacity.