在生产实践中,绘制走向玫瑰图是统计岩石节理资料最常用的一种图解方法。但是,这种图件只反映节理走向分布规律,而扩展走向玫瑰图可进一步将关键节理组的倾向、倾角表示出来。所谓关键节理组,系指数量最多,或 In production practice, drawing a rose map is the most commonly used graphical method for counting rock joints. However, this kind of graph only reflects the trend of the distribution of joints, and the expansion of the rose graph can further show the inclination and inclination of the key joints. The so-called key group, refers to the largest number, or