Figure 9.
The image depicts a graph with the X-axis labelled as vertical stress at the top in kilopascals, ranging from 0 to 180 kilopascals. The Y-axis illustrates vertical stress at the bottom in kilopascals, ranging from 0 to 250 kilopascals. Two lines represent different stress levels, a grey line for the High stress level and a black line for the Low stress level, each showing a general increasing trend. A dashed reference line at a one-to-one ratio is also shown, indicating equivalence between the two axes. The graph illustrates the relationship between vertical stress at the top and bottom under varying conditions.Indicative test results of the consolidation phase in the calibration chamber