Geobear Capability Matrix

This page outlines the core capabilities provided by Geobear as outlined in our Capability Matrix. The full matrix can be downloaded as a PDF and includes clickable links within the case study column

Grouting Activity / Process

Particular Objectives

Geobear Method

Soil Characteristics

Limitations (Achieved)

Verification method

Case Studies

Stucture – related applications [ surface, near-surface ]

Re-levelling / Lifting- foundations, floors, structures, utilities

Correct structural defects – differential settlement and/or deflection

Re-levelling / Stabilisation

Granular, Made ground, Silt, Clay, Peat organic material < 10%, WL < 60%

Lifting up to 400mm, max load 140t locomotive

Level monitoring

Improve bearing capacity below existing structure to avoid / mitigate settlements – granular soils ( sands, gravels)

Geopolymer permeation, expansion, compaction and densification

Ground Improvement

All granular (Made Ground, Sands and Gravels/Cobbles)

Up to 350% improvement depending on initial density

Dynamic penetration testing (DP)/Standard Penetration testing (SPT)/Cone Penetration Testing (CPT)/plate load testing

Improve bearing capacity below existing structure to avoid / mitigate settlements – cohesive soils ( clays, silts )

Hydraulic fracturing, fracture permeation, geopolymer expansion, strengthening and stiffening

Ground Improvement

Cohesive soils (Made ground, Silt, Clay), organic content < 10%, WL < 60%, N-SPT Value > 1

Up to 600% improvement depending on initial shear strength

DP / SPT / CPT / Plate load testing / Triaxial Testing / In-situ shear wave measurements

Improve bearing capacity of existing foundations to accommodate additional current or future loading

Localised geopolymer permeation, expansion, compaction and densification. Fracture permeation, strengthening and stiffening.

Ground Improvement

All granular (Made Ground, Sands and Gravels/Cobbles) and cohesive soils (Made ground, Silt, Clay), organic content < 10%, WL < 60%, N-SPT Value > 1

350% to 600% improvement depending on nature of ground

DP / SPT / CPT / Plate load testing / Triaxial Testing

Structural underpinning

Localised structural support by injection pile to address stability issues

Structural Support

All soil types N-SPT Value 0-3

Max load 200kN/m, max depth 6m

Quantity, Level monitoring, Pile load testing

Water exclusion (Groundwater permeation reduction vs. structure leaks)

Groundwater exclusion via structure fabic or joints / defects

Ground Improvement

Granural soils, Structures

100%

Permeability test

Void filling – below foundations, floor slabs

Restore support, reduce risk of future settlement and/or void migration

Void Filling

All soils

100%

Quantity and visual/sampling/Dynamic penetration testing (DP)

Vibration reduction

Traffic dynamic loads, manufacturing machinery

Ground Improvement

Granular soils

70% reduction

Vibration monitoring

Structural infill to reduce volumetric change (Clay Shrinkage)

Geoploymer fracture permeation, expansion, compaction, strengthening and stiffening. Bulk permeability reduction.

Ground Improvement

Shrink and swell Clay

Clay Modified PI < 60%

Level monitoring/soil sampling/Dynamic penetration testing (DP)

Grouting Activity / Process

Particular Objectives

Geobear Method

Soil Characteristics

Limitations (Achieved)

Verification method

Case Studies

Geotechnical applications [ sub-surface ]

Liquefaction mitigation

Stiffening / densification of soil mass to control vibration-induced soil mobility

Ground Improvement

Sand, Granular soils

Factor of safety > 1

DP / SPT / CPT / Plate load testing / In-situ shear wave measurements

Sink hole remediation

Fill open cavities and consolidate loose infill materials

Void Filling, Ground Improvement

All soils

100%

Quantity and visual /sampling / DP

Filling / stabilisation of old coal/mineral workings

Fill open cavities and consolidate loose infill materials

Void Filling, Ground Improvement

Underground cavities

100%

Quantity and visual / sampling /DP

Mitigate settlement from construction or tunnelling activity (compensation grouting)

Mitigate excavation-induced settlement by replacement of excavation volume loss

Geo RT, Ground Improvement

Settling soils

100%

Monitoring of structure

Control internal erosion

Seal preferred seepage paths and reduce permeability to ensure long-term stability of embankments

Ground Improvement

Permeability tests

100%

Quantity and visual /sampling / GPR / DP

Pile Load Capacity Improvement (Toe Injections)

Hydraulic fracturing, fracture permeation, strengthening and stiffening

Geo RT, Ground Improvement

Cohesive soils (Made ground, Silt, Clay), organic content < 10%, WL < 60%, N-SPT Value > 1

Up to 200% improvement depending on nature of ground

Pile Load Testing/ DP / SPT / CPT

Hydraulic cut-off

Provide a hydraulic cut off barrier to reduce seepage rates and / or isolate an excavation or embedded structure structure

Ground Improvement

Granural soils, Structures

100%

Permeability tests

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