ROOT OF ANCIENT FILL-CONSTRUCTION TECHNIQUE IN JAPAN AND ITS CHANGE〜FROM DU-TUN TOMBE IN JIANGNAN, CHINA TO YOSHINOGARI BURIAL MOUND〜

吉野村墓葬冢（Funkyuu墓）是公元前50年左右第一个使用Hanchiku（古代填筑法）技术的夯实土结构。吉野古冢的根源是什么？它的古代填筑技术是什么？作者着重研究了中国Chanjiang Rivet南部地区的土墩墓，这些土墩墓建于公元前1100年至公元前400年，被认为是这些土墩和技术的直接根源。我们首先对一些土墩墓进行了土工现场试验，并对土墩土进行了室内试验。土墩墓分为贵族和平民两种。贵族墓的规模更大，在这种建筑中使用了Hantiku技术。为了满足强度、排水、防水等功能的需要，对部分土地的土壤进行了层压实处理。从这些调查中发现了杜屯墓与吉野村墓冢之间的一些相似之处。据分析，在罗城（日本名，公元前108年）在韩国建立之前，该地区没有像斗屯墓这样的墓地。据说，在韩国还没有发现比吉野村更古老的墓地。从以上的调查和考虑，可以说，都屯墓的建造技术，即古代汉竹技术，是从中国经海路传播到北九州的，而不是通过朝鲜半岛。

The Yoshinogari burial mound (Funkyuu tomb) is a firstly compacted soil structures using a Hanchiku (ancient fill-construction method) technique in nearly B.C.50. What is the root of the Yoshinogari burial mound and its ancient fill- construction technique? The authors focused on the Du-Tun (burial mound) tombs in the south area of Chanjiang Rivet in China, which were constructed in nearly B.C.1100 to B.C.400 and which were considered as the direct root of these mound and technique. We firstly conducted geotechnical field tests on some Du-Tun (burial mound) tombs and laboratory tests for the mound soils.There are two kinds of Du-Tun (burial mound) tombs for nobility and common people. The tombs of nobility is greater in size and Hantiku technique is used in this construction. Some lands of soils were compacted in layer in order to have some needs function such as strength, drain, waterproofing and etc. Some similarities between the Du-Tun tombs and the Yoshinogari burial mound are found from these investigations.It is considered that before the establishment of Rakurogun (Japanese name, B.C.108) in Korea , there is no burial mound such as the Du-Tun tombs in this area. And it is said that in South Korea any burial mounds older than the Yoshinogari burial mound haven't been discovered yet.From above investigations and considerations, it can say that the Du-Tun tombs' construction technique, namely the ancient Hanchiku, technique propagated from China through the sea to North Kyusyu, not through the Korean Peninsula.