基于变精度粗集模型的大坝裂缝研究  

Dam Crack Research Based on Variable Precision Rough Sets Model

作　　者：卢兆辉 李忠良 刘春林 

机构地区：[1]东北电力科学研究院有限公司,辽宁沈阳110006

出　　处：《东北电力技术》2005年第11期1-5,共5页Northeast Electric Power Technology

摘　　要：研究影响裂缝开度变化和扩展的主要因素及其不利组合,有利于保证大坝安全运行。提出了大坝裂缝的变精度粗集模型,将实测资料离散化为裂缝开度的决策信息表,对影响因素约简得到影响大坝开度变化的主要因素,利用规则约简求得不利因素组合,并介绍了这一方法在工程中的实际应用。Study on the main influence factors of dam crack and the hazardous combination of such factors is important to ensure dam safety.A new method based on variable precision rough sets model is presented for analyzing dam crack.The idea is as follows:at first,discretize the field data to decision table for dam crack,and then reduce attributes to main influence factors,and reduce decision rules to acquire the hazardous combination of main factors.A practical application of the model is finally illustrated.

关 键 词：粗糙理论 变精度粗集模型 大坝裂缝 裂缝成因 

分 类 号：TV698.231[水利工程—水利水电工程] TV698.11