Advanced numerical modelling of complex rock mass behaviour in stope 16, Moinho Mine, Portugal + Appendixes

1992. Advanced numerical modelling of complex rock mass behaviour in stope 16, Moinho Mine, Portugal + Appendixes / by Liao Qiuhong. - Delft : ITC, 1992. - 117 p., 150 p. ; 30 cm. - ITC MSc-thesis. ABSTRACT, supervisor: Hack, thesis availability: ITC Library.

ABSTRACT

This research project is the optimization of a  mining  method  by advanced numerical modelling of complex rock masses behaviour. The UDEC (Universal Distinct Element Code) Version  ICG 1.7  has  been used for numerical modelling. The key  problem  of  this  research project is the stability of stope 16 and mechanical  behaviour  of the surrounding rock masses of stope 16 in Moinho Mine,  Portugal. The research project consists of  two  parts:  Part  A,  numerical modelling and  parameters  determination and  Part  B,  numerical modelling of stope 16.

In Part A, research is carried out  how  to  determine  the  input parameters required for UDEC.  Literature  review  and  laboratory samples test data back-analysis are applied how to  determine  the values. The sensitivity analysis of input parameters are described in model test.

In Part B, the numerical modelling to determine the  stability of the hangingwall of stope 16 and model  calibration  is  described. The objective  of  the  research  project  by  modelling  is:  to investigate if numerical modelling results are  in  correspondence with the reality underground (stope  16).  The  objective  of  the model calibration are: to ensure the accuracy of the model and  to verify the reality of input parameters for modelling calculation.