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1引言自1925年太沙基提出的“蜂窝状结构”概念以来，有关土和沉积物微结构分类研究取得了一系列重大成果［‘－’」．高国瑞［则研究分析了我国沿海海相沉积物的微结构类型和工程性质，梁元博等卜］提出典型堆垒结构和颗粒孔隙取向的海洋沉积物微结构模式，卢博等卜一’］对南
1 INTRODUCTION Since the concept of “honeycomb structure” proposed by Taishaji in 1925, a series of major achievements have been made in the study of the classification of microstructure of soils and sediments [’-’]. Gao Guorui [then studied and analyzed the microstructure types and engineering properties of the coastal marine sediments in China. Liang et al. Proposed the micro-structural model of marine sediments with typical stacking structure and grain-pore orientation. Lu et al.