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以梅山—龙河口断裂近侧安徽霍山戴家院遗址再发掘所揭示出的自然变形痕迹为主要研究对象,结合前期工作对比分析,识别编录其变形形态,分析其活动习性,定向采集含液化脉变形物质,在保持原态基础上进行微观分析.发现一系列丰富的微观变形组构和组合,如波浪状、流动构造和定向排列组构,有机颗粒悬浮等;脉体形态多种多样,见原地碎裂,弥漫性裂隙,在脉体及旁侧基质见先成纹层被扰动,被扭曲甚至被冲断,产生微破裂、穿切和揉皱等,多处显现流动-挤压-冲断递进变形过程,呈现丰富的微观变形细节.地震液化脉微观变形特征的提炼对液化脉多尺度的识别研究是有益的.
The main research object is the natural deformation traces revealed by the excavation of the Dai family homes in Huoshan, Anhui Province near the Meishan-Longhekou fault. Based on the comparative analysis of the previous work, the deformation patterns of the sites were identified and their activities were analyzed. The deformation materials are analyzed microscopically on the basis of the original state, and a series of rich microstructures and combinations of microscopic deformation are found, such as wavy, flow structure and orientation arrangement, suspension of organic particles, etc .; In situ fragmentation, disseminated fissures, in the veins and the side of the matrix see the first layer is disturbed, twisted or even ruptured, resulting in micro-cracking, piercing and crumpling, etc., appeared in many flow - squeeze - The process of thrusting deforming shows rich microscopic deformation details.The refinement of microscopic deformation characteristics of seismic liquefaction pulse is beneficial to the research of multi-scale identification of liquefaction pulse.