摘要
基于可拓理论识别方法,在物元模型理论的基础上建立了地下隧洞岩体质量评价的物元识别模型,提出采用层次分析法计算物元模型中各评价指标的权系数的方法。通过实际地下隧洞岩体质量等级的关联度计算,对锦屏二级水电站深埋长大引水隧洞的围岩岩体质量进行了评价,得出了与现场实际相符合的结论。研究分析表明:可拓理论识别方法用于隧洞围岩分类是可行的,能够较全面地反映多因素指标对隧洞围岩分类的影响,对解决岩土工程中的类似问题具有重要的借鉴意义。
The matter element recognition model of underground tunnel rock quality evaluation is established using matter element model theory based on extenics recognition method. The stratification analysis method used to calculate the weight coefficient of evaluation index is proposed. Through calculating the relational degree of the actual tunnel rock quality grades, the deep and long diversion tunnel rock quality of Jinping second hydropowder station is evaluated, and the conclusion drawn is in accordance with the practice. It is shown that extenics recognition method is feasible to classify tunnel rock, which can comprehensively reflects the influence of multi - factor index on tunnel rock classification and can be used for reference to solve the similar problems in geotechnical engineering.
出处
《地下空间与工程学报》
CSCD
2008年第2期259-264,共6页
Chinese Journal of Underground Space and Engineering
基金
国家自然科学基金资助项目(编号50579091,50504004)
关键词
可拓学
物元模型
岩体质量评价
层次分析法
隧洞稳定性
extenics
matter element model
rock quality evaluation
stratification analysis method
stability of tunnel
