Mine Waste Management in China: Recent Development by Di Wu

Author:Di Wu
Language: eng
Format: epub, pdf
ISBN: 9789813292161
Publisher: Springer Singapore

The predictive ability of the coupled model is verified against the experimental data of vertical settlement measured on the surface of the top layer in the CPB. A comparison between the simulated and measured values is presented in Fig. 6.44. From this figure, it can be noticed that the modeling results are in very good agreement with the measured data (Cui and Fall 2015).

Fig. 6.44Predicted vertical settlement versus experimental data of vertical settlement (Cui and Fall 2015)

Apart from the measurement of vertical displacement of the high CPB column, a series of UCS tests were also performed on CPB specimens sampled from the column after 7, 28, 90, and 150 days of curing. The obtained UCS data are used to further validate the mechanical component of the developed model (Cui and Fall 2015).

Typical validation results are shown in Fig. 6.45. As presented in this figure, the good agreement between predicted outcomes and experimental data of stress–strain curve indicates that the mechanical component of the developed model is capable to predict relatively well the time-dependent stress–strain response of the CPBs. In other words, the model can reproduce well the strain hardening-softening of hydrating CPB (Cui and Fall 2015).

Fig. 6.45Comparison of numerical results and measured data of stress–strain relation (Cui and Fall 2015)

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