| 1. | Aiming at crack problems in important hydraulic concrete structures , the cause , evolution rule and abnormality diagnosis of the crack are studied in this dissertation by using advanced theories and mathematics and mechanics , such as rough set theory , data mining , neural network , wavelet analysis , chaos theory , and so on , combining with prototype observation data . the main contents are as follows . ( 1 ) mining of cause of crack is proposed by using logic diagnosis , rough set theory , and data mining technique
本文针对重大水工混凝土结构运行期的裂缝问题，应用粗集理论、数据挖掘、神经网络、小波分析、混沌理论、突变理论等前沿数学方法及断裂力学等力学方法，以及数值仿真等数值模拟方法和逻辑诊断方法，结合实测资料，对运行期裂缝的成因、演变规律以及转异诊断等方面进行了系统的研究。 |
