Table 4.

Stiffness values (E) from loading efficiency analysis (April 2015–November 2015)

LocationBorehole ID/depth (mBGL to piezometer tip)Loading efficiency, B̅Ec (MPa)E (MPa)
Behind crestBH1-3/9 m0.75.07×1091335.5
BH1-2/16 m0.559.67×1092549.7
CrestBH2A-3/7.4 m0.87.88×109779.1
BH2-3/8.6 m0.75.07×1091335.5
BH2A-2/15 m0.656.36×1091678.0
BH2-2/15.9 m0.67.88×1092077.5
BH2A-1/17.5 m0.67.88×1092077.5
BermBH7-2/5.6 m0.75.07×1091335.5
BH7-1/10.8 m0.67.88×1092077.5
ToeBH3A-1/2.3 m0.82.96×109779.1