关键词: 第四系, 环境因子, Apriori算法, 三峡库区

Abstract: Aiming at exploring distribution and thickness of Quaternary in engineering geological field, especially in the prevention of geological disasters, a method of Quaternary feature association rule analysis based on multi-source data fusion was proposed. Taking the Yangtze River bank slope in Zigui section of the Three Gorges Reservoir area as the study area, Apriori algorithm was used to analyze the association rule set between the Quaternary distribution and thickness and three main environmental factors(namely lithology, slope, NDVI), the reliability of the rules was evaluated with confidence and support. The result shows:① Apriori algorithm effectively analyzes the association rules between the Quaternary and each factor, which can be used as empirical judgment rules.② In general, with increase of NDVI and the slope values, the thickness of Quaternary decreases gradually. The distribution and thickness of Quaternary in clastic rocks are greater than that in carbonate rocks.③ Remote sensing is an effective means to acquire Quaternary information, such as NDVI. Combining remote sensing interpretation and field survey can supplement the lack of survey data.

Key words: Quaternary, environmental factors, Apriori algorithm, Three Gorges Reservoir Area;