BS 1377 Part 6 1990          
Hydraulic cell consolidation test : consolidation readings
Location Job Ref:
BH No.
Soil Description Sample No.
Depth
Test method   BS1377: Part 6:  1990 : 3.5,3.6,3.7,3.8 Date
Drainage conditions                  
Pore pressure measurement location Cell no.  
            Pressure system no.        
UNDRAINED LOADING Stage no.        
Load increment/decrement*       Effective stress     kPa
  Initially   After pore pressure Pore pressure build-up      
          build up            
Diaphragm pressure   kPa     pd   Time min Pore pressure kPa
Stress on specimen        kPa     s            
Pore pressure              kPa     ui            
Effective stress           kPa     s'            
Compression gauge                  
Effective stress after consolidation kPa              
Back pressure for consolidation kPa ub            
Excess pore pressure              (uf - ub) kPa              
CONSOLIDATION   Average temperature oC          
Date Clock Elapsed   Pore pressure Compression gauge Volume change
  time time / t Value difference dissipation Reading Difference Reading Difference
    or          
    t0.485* u (ui - u) U dH dV
  min kPa kPa % mm mL mL  
    0 0   0 0   0   0  
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
  
 

 
  Operator Checked Approved

                                                                                                                                        Form6C