基于博弈论的地下矿山岩体质量可拓评价研究

Research on Extension Evaluation of Rock Quality for Underground Mine Based on Game Theory

对三山岛新立矿区-400 m中段岩体质量等级进行评价,评价指标参考RMR分类法,并考虑完整性系数KV和地应力修正系数Q。引入可拓学理论,建立岩体质量评价物元模型,提出基于博弈论的最优组合赋权法确定指标权重,建立基于博弈论最优组合赋权法的可拓理论。同时,应用修正RMR分类法对-400 m中段岩体质量进行评价。研究表明,基于博弈论的岩体质量可拓评价能反映待评岩体与相邻等级之间的距离,较修正RMR分类法更加精确,从而使采矿方法设计及开采过程中的安全支护措施更加合理,为确保矿山安全、高效开采提供了技术支撑。

Using the evaluation indexes of RMR and considering rock integrality index Kv and in - situ stress correction coefficient Q,the rock quality evaluation for the -400 m level in Xinli mining area of Sanshandao gold mine. A matter element model for rock quality evaluation was established by using extension theory. An optimally - combined weighting method based on game theory which is used to determine the weight of indexes was proposed, and an extension theory for the optimally - combined weighting method based on game theory was established. At the same time,a revised RMR system was used to evaluate the rock quality in the - 400 m level. The result showed that compared with the evaluation results obtained by the revised RMR system, the extension evaluation of rock quality based on game theory is more accurate, and can provide the difference between the adjacent safety classes, which makes the design of mining method and safe supporting in mining operation more reasonably, and then achieves the safe and high -efficient exploitation.