CAJ | 학술논문

评价岩体地质强度指标(GSI)时，因其基本要素取值过程存在较大的随机性和模糊性，很难用静态的模式去准确衡量每个影响因素，岩体特征参量的模糊性反映其内在的不确定性，模糊数学理论为更客观地刻画这种特性提供有力的数学手段。首先引入岩体节理组数Jn、节理间距l和岩体完整性系数Kv描述岩体结构特征，大比例尺波形系数 Jw、小比例尺光滑系数 Js和节理蚀变系数 Ja描述结构面条件，然后把多因素模糊综合评判理论应用到GSI系统的评价中去，并利用层次分析法确定模糊评判因素的权重，建立GSI系统的模糊综合评判模型。工程应用表明，这种方法针对性较强、误差较小，能够将地质调查勘探结果、试验结果、统计数据以及专家意见有机结合起来，从而减小研究者决策时主观性。GSI系统的模糊综合评判法为GSI系统量化提供新的途径。
평개암체지질강도지표(GSI)시，인기기본요소취치과정존재교대적수궤성화모호성，흔난용정태적모식거준학형량매개영향인소，암체특정삼량적모호성반영기내재적불학정성，모호수학이론위경객관지각화저충특성제공유력적수학수단。수선인입암체절리조수Jn、절리간거l화암체완정성계수Kv묘술암체결구특정，대비례척파형계수 Jw、소비례척광활계수 Js화절리식변계수 Ja묘술결구면조건，연후파다인소모호종합평판이론응용도GSI계통적평개중거，병이용층차분석법학정모호평판인소적권중，건립GSI계통적모호종합평판모형。공정응용표명，저충방법침대성교강、오차교소，능구장지질조사감탐결과、시험결과、통계수거이급전가의견유궤결합기래，종이감소연구자결책시주관성。GSI계통적모호종합평판법위GSI계통양화제공신적도경。
When evaluating geological strength index(GSI),there are great randomness and fuzziness to confirm the value of its basic elements. As a consequence,it is difficult to accurately measure the impact of each influential factor. The fuzziness of the parameter of rock mass characteristics reflects its inherent uncertainty. The fuzzy mathematics theory provides strong measures to depict these characteristics. This article introduces the number of joint sets(Jn),joint spacing(l) and the integrity coefficient of rock mass(Kv) to describe the structure features of rock mass and introduces large-scale waviness(Jw),small-scale smoothness(Js) and joint altered coefficient(Ja) to describe the conditions of structural planes. Then multifactor fuzzy-synthetical evaluation is applied to the system of GSI. Meanwhile,analytic hierarchy process is adopted in determining the weight of each factor. As a result,the model of fuzzy-synthetical evaluation of GSI is established. Project applications prove that this evaluation method has strong pertinence and high accuracy and it can organically combine geological surveys,experiment data, statistics and expert opinions,so this evaluation method can decrease the subjectivity of researchers′decisions. The method of fuzzy-synthetical evaluation of GSI does provide a new approach to quantizing GSI system.