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Research on Silla and Gaya Earthen Fortification in Yeongnam Area has grown quantitatively and qualitatively enough to enable comprehensive analysis thanks to the recent accumulation of survey results. Accordingly, the characteristics of each construction process were analyzed for 6 sites of Silla and 7 sites of Gaya, and were compared by synthesizing them. Both Silla and Gaya Organic matter such as the Leaf mat method and the designated pile were used in the low wetland or soft ground, and the frictional force was maximized by using a stepped or uneven surface stopping method on the slope. In particular, in the case of the embankment technique, by setting the soil of the narrow-type embankment technique through the cases of Wolseong and Bonghwangtoseong, there was a result of subdividing it into a narrow-type (A1) and a flat-type (A2). Gaya is reinforced by adding a stone shaft part during the construction of the reinforcement of the wall or the finishing of the reinforcement wall of the construction of the wall. The longer the plate mass, which was created by repeated dismantling and re-installing the plate shaft structure, is another peculiarity of Gaya. This may be a primitive form of the phenomenon of increasing the length of the plate mass in the “Gidanseokryeol plate shaft fortress” stage that appears after the “pure plate shaft fortress”. Therefore, it is noteworthy that it is located as a technical and historical link in the transformation of the fortress construction technology.
Lee et al. (Thu,) studied this question.