LI Mao-hui, YANG Zhi-qiang, GAO Qian, et al. Research on intelligent identification methods for in-situ stress field base on complex geological body[J]. 2014, 35(S2).
LI Mao-hui, YANG Zhi-qiang, GAO Qian, et al. Research on intelligent identification methods for in-situ stress field base on complex geological body[J]. 2014, 35(S2).DOI:
In-situ stress is an important factor for underground mining and construction. We usually use back calculation combined with field measurements to obtain the accurate in-situ stress values. Based on the monitoring data of a certain complex copper-nickel mine
we establish a 3D orthogonal numerical model and use this model to obtain the difference between the measured and calculated values
the sum of the squares of the minimum objective function optimization of in-situ stress. Finally
the genetic algorithm of intelligent algorithm is used to optimize the objective function so as to acquire the original rock stress field in this copper-nickel mine. Test sample validation results show that the relative error between measured and calculated values within 10%; it is proved that the intelligent recognition method of in-situ stress is reliable in some extent and will provide a more viable method of in-situ stress field for complex geological body.