基于分区变权及AHP的煤层底板突水脆弱性评价
Vulnerability evaluation of water inrush in coal seam floor based on zone variable weight and AHP
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摘要: 在进行煤层底板突水脆弱性评价时,往往是通过不同的模型及计算方法得到各个影响因 素的常权权重,各个分区均采用此固定常权权重,忽略了不同分区中各个影响因素指标值在不同 的组合状态下,其影响权重需随之调整,以反映各影响因素对于煤层底板突水相对重要性的变化 问题。 本文结合AHP确定的各影响因素常权权重,引入分区变权模型,调整各分区不同因素组 合状态下的权重分配,改进了常权权重在不同分区评价中的不合理性,进一步提高了评价结果的 精度,对安全开采具有一定的参考价值。Abstract: Thetraditionalvulnerabilityassessmentofwaterinrushfromcoalseamflooroftenobtainsthe constantweightofeachinfluencefactorthroughdifferentmodelsandcalculationmethods.Whenevaluating,eachsubareaadoptsthisfixedweight,ignoringthefactthattheindexvaluesofeachinfluencefactorindifferentsubareasareindifferentcombinations,andtheinfluenceweightshouldbeadjustedaccordinglytoreflecttherelativeimportanceofeachinfluencefactorinwaterinrushfromcoalseamfloor inrealtime.Inthispaper,combinedwiththeconstantweightsoftheinfluencefactorsdeterminedby AHP,thezoningvariableweightmodelisintroducedtoadjusttheweightdistributionofdifferentzones underdifferentcombinationsoffactors,whichimprovestheirrationalityofconstantweightsindifferent zoningevaluation,furtherimprovestheaccuracyofevaluationresults,andprovidessomereferencefor thesafeproductionofcoalmines.
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