基于优序图法的可拓学理论在马吉水电站岩体质量评价中的应用

APPLICATION OF EXTENICS THEORY TO EVALUATION OF MAJI HYDROPOWER STATION ROCK QUALITY

摘要: 文中结合可拓学理论在工程实际中的应用, 将其应用到马吉水电站坝肩某高程平硐的岩体质量评价中。基于可拓学的相关理论, 同时, 引入优序图法确定各评价指标的权重系数, 建立了硐室岩体质量评价的物元模型, 并利用该模型对PD105各硐段岩体进行了可拓学的岩体质量评价, 结果符合现场观察规律。对比之前的RMR评价方法, 认为可拓学理论在岩体质量评价中能够很好地反应水电工程岩体的工程地质特性。

Abstract: The extension engineering method is combined with rock quality evaluation, apply it to rock mass quality evaluation which data collected from an adit at Maji hydropower station dam. On the basis of the theory of extenics, Simultaneously, introducing precedence chart method to determine the weights of the evaluation indexes, and a matter-element model calculating procedure is proposed. Rock of each section in PD105 is evaluated by using the model, and the result consists with the law of site. Compared with the evaluation results by the former RMRmethod, the rock quality evaluation results obtained by the extenics method can more precisely reflect the engineering characteristics of tunnel rock.