@article{oai:rekihaku.repo.nii.ac.jp:00002487,
 author = {林, 智娜 and Im, Jina},
 journal = {国立歴史民俗博物館研究報告, Bulletin of the National Museum of Japanese History},
 month = {Sep},
 note = {application/pdf, 本稿では，栄山江流域における前方後円墳の築造技術の実態について検討を行った。まず，発掘調査が行われている前方後円墳について，立地と基礎工程（整地）・墳丘の築造企画・墳丘の築造技術・墳丘盛土と埋葬施設構築の相関性・外表施設（葺石・周堤・円筒形土器）という視点から，その築造過程や用いられた技術について基礎的な整理を行った。
次に，その内容について相互に比較を行うことで，前方後円墳の築造技術の特質について検討した。その結果，整地の方法は様ざまである一方で，墳丘企画については，墳丘長と後円部径の比７：４を示す事例が大半である点が注目できる。また，前方部や周溝の形態によって，大きくA，B型式に大別できた。
墳丘盛土と石室の相関性については，平面的に，墳丘の中心部に石室（玄室）を築造する設計意図が，全ての事例において確認できる。その一方で，立面的には，石室優先型と折衷型という２つの類型の設定が可能である。また，墳丘築造において墳丘外縁に沿って土堤を構築する点（土堤盛土方式）も共通的である。ただし，土堤の断面形態や高さは多様である。
実は，このような墳丘築造技術の中には，在地の伝統的な古墳においても認められるものも含まれている。むしろ，前方後円墳の築造の際には，前方後円という墳形（とその企画）のみが新たに導入されただけで，実際の墳丘築造技術は，地域の伝統的な方式を固守していた可能性が高い。そのような意味あいにおいて，前方後円墳を築いた集団は，その周辺において伝統的な古墳を築造していた集団と，同様な歴史的脈絡の中で活動していたと推定できる。, In this paper, I examined the construction technologies of the keyhole-shaped tumuli in the Yeongsan River basin. First, I conducted a basic analysis of the keyhole-shaped tumuli construction process and the technologies used from the perspective of the locations and the basic process (land preparations), the planning of the construction, the technologies of the construction, and the correlation between the embankments of the tumuli and the construction of the burial facilities along with the external facilities (fukiishi-stones covering the slopes of tumuli, surrounding embankments, and cylindrical earthenware).
Next, I examined the characteristics of the construction technologies of the keyhole-shaped tumuli by comparing their contents. The result shows that, while there are various ways to level the land, the ratio of the lengths of tumuli to the diameters of the posterior circles is 7:4 in the majority of the cases. Moreover, I was able to roughly divide the tumuli into type A and type B according to the forms of the front and the surrounding moats.
As for the correlation between the embankments and the stone rooms, I can confirm that there is a design intention to construct a stone room (an empress room) in the center of the mound in all the cases.
On the other hand, it is possible to have two types of setting in terms of elevation surfaces: the type that prioritizes a stone room and the eclectic type. Additionally, they share a common feature, which is to build embankments along the outer line of the mound in the construction (the embankment/mound method). However, there are differences in the cross-section shapes and the heights of embankments.
In fact, some of these construction technologies are also found in the traditional tumuli in the area. It is highly possible that when constructing the keyhole-shaped tumuli, only the keyhole shape (and its planning) was introduced, and the locally used traditional method was firmly kept in the actual construction technologies of tumuli. In that sense, we can assume that the group that built the keyhole-shaped tumuli was active in the same historical context with the group that built the traditional tumuli around them.},
 pages = {183--211},
 title = {栄山江流域における前方後円墳の築造技術 (第4部　総論)},
 volume = {217},
 year = {2019}
}