水工混凝土结构裂缝主要成因挖掘的粗集方法

研究水工混凝土结构裂缝的主要成因,采取适当措施控制裂缝,从而改善水工混凝土结构的耐久性.本文运用粗集理论,提出水工混凝土结构裂缝主要成因挖掘的方法.首先,建立水工混凝土结构裂缝-成因模式信息表,然后对产生裂缝的可能原因进行压缩或约简,删除可能成因中的冗余信息,从而挖掘出裂缝产生的主要原因.最后将该方法用于某重力拱坝裂缝主要成因的分析当中,得到水位和温度是该坝在运行过程中裂缝产生和发展的主要影响因素的结论,该结论与大坝的实际运行情况相一致,说明该方法是可行的.

Approach of rough set to extracting cause of crack hydraulic concrete structure

The main cause and control of the crack in hydraulic concrete were studied in order to improve the durability of hydraulic concrete structure. The theory of rough set was applied and the approach of extracting the main cause of the crack for hydraulic concrete structure were proposed. The information table about dam crack and causing mode was established firstly, and any possibility of causing cracks was reduced, and then the redundancy information of possibility was deleted and the main cause of crack was derived finally. It can be drawn that applying the method for analyzing the crack in the arch gravity dam, the water level and temperature was the main effect of causing and extending in the working of dam. This conclusion is consistent with the practice of the dam, so that the method is feasible.