Alliance employ the best specialist laboratory people in the commercial sector investigating soil settlement and swelling potential using the latest GDS Automated Oedometer Machines and GDSLAB control and data acquisition software.
Settlement is the most common reason for the failure of foundations and is therefore critical to understand the mechanics of settlement.
The consolidation test gives a guide to the amount of consolidation which will occur on-site and the rate at which it proceeds. There may be further settlement when consolidation nears completion due to ‘creep’ in the soil mass, this is known as secondary settlement and this can also be performed in our automated oedometer machines.
Mv = Coefficient of Volume Compressibility
Cv = Coefficient of Consolidation
k = Permeability
Cc = Compression Index
Cr = Recompression Index
Ca = Secondary Compression Index
e = Void ratio
S = Degree of Saturation
Pc = Preconsolidation Pressure (Casagrande Method)
OCR = Over Consolidation Ratio
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