基于灰色关联度的可拓学理论在岩体质量评价中的应用

为了建立更好的岩体质量分级系统,改进传统岩体质量分级方法以及其它数学评价方法,结合红岩水库通航隧洞现场工程地质条件,建立了可拓学理论岩体质量分级评价的物元模型,并采用灰色关联度方法改进可拓学理论中求取各评价指标权重主客观因素考虑不充分的缺点.研究结果表明,采用灰色关联度法充分考虑了岩体质量评价的主客观因素,计算出的各指...

Application of Extenics Theory Based on Grey Relevance Degree in Rock Mass Quality Evaluation

In order to establish a better rock mass quality grading system and improve the traditional grading methods and other mathematical evaluation methods,a matter-element model based on extenics theory for rock mass quality grading evaluation is established in combination with the engineering geological conditions of navigation tunnel in Hongyan Reservoir.The grey relevance method is used to improve the subjective and objective factors for calculating the weight of each evaluation index in extenics theory.The results showed that the subjective and objective factors of rock mass quality evaluation are fully considered by the grey relevance method,and the weights of each index calculated were reasonable and reliable.The combination of grey relevance method and extenics theory could not only reflect rock mass gradation,but also reflect the distance between different grades.The application of this theory to classify and evaluate surrounding rock quality would have definite guidance in engineering practices.