考虑多项定量描述指标的岩体结构面组数和间距研究  

Study on sets and spacing of rock mass discontinuity considering multiple indexes of quantitative description

作　　者：曹洋兵[1] 晏鄂川[1] 吕飞飞[1] 李兴明[1] 

机构地区：[1]中国地质大学(武汉)工程学院,湖北武汉430074

出　　处：《中南大学学报（自然科学版）》2014年第12期4348-4354,共7页Journal of Central South University:Science and Technology

基　　金：国家重点基础研究发展计划("973"计划)项目(2011CB710605);国家自然科学基金资助项目(41172282);北京市科学技术委员会重点资助项目(20090102-2796)~~

摘　　要：岩体结构面组数和间距是分析岩体结构类型、渗流特性及稳定性等的关键参数。基于迭代自组织数据分析技术算法,依据结构面数据处理的基本要求对其进行改进,再将模糊隶属度和模糊加权指数引入其中,并在欧氏距离和标准偏差2个关键算式中增加指标权重,构建起可考虑多项分组指标及其重要程度的结构面自组织模糊聚类分组模型。基于空间架构关系,推导该分组模型下的结构面间距计算式。利用C#语言对算法进行编程实现,开发DSSIA软件。结合山东某地下水封石油洞库工程,对分组指标的选择、指标权重的确定及算法参数的设置等问题进行了分析,计算结果体现了分组模型及间距算法的可靠性、必要性及优越性。Discontinuities sets and spacing of rock mass are critical parameters in analyzing structure type, seepage property and stability of rock mass. Based on iterative self-organizing data analysis technique algorithm, a discontinuity grouping model named self-organizing fuzzy clustering was established. This model can consider multiple indexes of discontinuity quantitative description and their weights. For details of this model, firstly iterative self-organizing data analysis technique algorithm was improved according to basic requirements of discontinuities data treatment, secondly fuzzy membership and fuzzy weighted index were added to the improved algorithm, thirdly index weight was included in Euclidean distance equation and standard deviation equation. Based on space architecture relation, calculation formula of discontinuities spacing was given under the grouping model. Taking advantage of C# programming language, the above discontinuities sets and spacing algorithm DSSIA were developed. Combining with one underground water-sealing rock caverns for oil storage in Shandong Province, some key questions such as how to choose grouping index, how to determine index weighting, and how to set up algorithm parameters were analyzed. Calculation results show that the discontinuity grouping model and proposed spacing algorithm have reliability, necessity and superiority.

关 键 词：结构面组数 结构面间距 自组织聚类 模糊数学 

分 类 号：P642.3[天文地球—工程地质学]