基于综合评价法的矿山微震监测台网布设评价

Evaluation on layout of mine microseismic monitoring network based on comprehensive evaluation method

为建立合理有效的矿山微震监测台网布设合理性综合评价模型,选择定位精度、定位稳定性、有效监测范围、施工条件和经济因素五类综合性评价指标,分别采用了十分制量化方法,计算各项指标的评价值;再采用特尔菲法,由多位专家对五项指标进行赋值,根据赋值结果计算各项指标在综合评价模型中所占权重;最后由各评价指标的得分和权重计算台网综合评价值,并对综合评价值的取值区间进行梯度分级,最终建立矿山微震监测台网布设合理性评价模型。通过某磷矿微震监测台网布置合理性验证,表明该模型能够对微震台网进行全面有效评价,评价结果可以为台网评价及优化提供理论依据。

To build a reasonable and effective comprehensive evaluation model on layout rationality of mine microseismic monitoring network,five categories of comprehensive evaluation indexes were selected,including locating accuracy,locating stability,effective monitoring range,construction condition and economic factor. The evaluation value of each index was calculated by using 10- point system quantization method respectively. The five indexes were assigned by multiple experts according to Delphi method,and the weight of each index in the comprehensive evaluation model was calculated based on the assignment results. The comprehensive evaluation value of network was calculated by the score and weight of each evaluation index,and the gradient classification was conducted on the value interval of comprehensive evaluation value. An evaluation model on layout rationality of mine microseismic monitoring network was established,and through the validation in a certain phosphate mine,it showed that the model can comprehensively and effectively evaluate the microseismic network. The evaluation results can provide theoretical basis for the evaluation and optimization of network.