The research on the establishment and development of horizontally tunneled burial chamber with murltiple-chamber structure

(1)多室结构水平隧道式墓室的建立过程分析利用熊本县北方菊池川下游地区（多名地区）的资料，系统地追踪了该项目的建立过程。最古老的多室结构起源于世纪晚期的水平隧道式墓室。最初，通往密室的通道是曲折的，之后，像柱子一样的风暴将内部分隔开。在世纪早期，典型的通道改造完成了。以前许多学者认为，分隔通道的存在是多室结构之一。但这项研究提出了两个建议。一是分类型的建立，明确流程，规范程序。二是朝鲜半岛半岛不可能出现多室结构。(2)墓室结构及谱系分析已建成的多室结构水平隧道式墓室共计970间。其中：九州约770所，中国约31所，四国约12所，近畿约12所，东海约47所，关东、东北约90所。在中国、四国、东海，这种类型的会馆可能是直接与九州文化交流的结果。在多摩河下游地区和关东地区的荒川河中部地区，通过东海建立了第二阶段效应。(3)地方性与层次性分析多室式有两种分布模式。大面积分布着地方首领墓葬，小面积分布着中小型墓葬。与同地区的单室式墓葬相比，该类型墓葬规模较大，形制较多。

(1) Analysis of the established process about horizontally tunneled burial chambers with multiple-chamber structureThe project can be traced the process systematically by the datas in the lower Kikuchi River area (Tamana districts) in northern Kumamoto prefecture. The oldest multiple-chamber structure originated in the type of horizontally tunneled burial chamber in the late of Fifth century. At first the access passage potion to the chamber was windened, after that divided the inside by the storns like the pillar.In the early Sixth century, the typical type of modifying the access passage potion was completed. Before many scholars thought that the presence of dividing the access passage potion was one of the structure with multiple-chamber. But this study showed two suggestions. One is that the establishment of dividing type make clear the process to standardize. Another is that Korean Peninsula give no effect to appear themultiple-chamber structure.(2) Analysis of chamber structure and genealogyThe founded horizontaly tunneled burial chambers with multipule-chamber structure are about 970in total. Of which : about 770 in Kyushu, about 31 in Chugoku, about 12 in Shikoku, about 12 Kinki, about 47 in Tokai, about 90 in Kanto, Touhoku.At Chugoku, Shikoku, Toukai this type chambers were probably estabulished as the result of cultural exchange with Kyusyu directly. In the lower Tama River area and in the middle Arakawa River area at Kantoregion were established under the second step effects through Tokai.(3) Analysis of locality and hierarchyThe multi-chamered style has two destribution patterns. Big tombs for regional cheifs dot in large area and middle-littlre tombs dot in small area. The tombs have larger scale and more processed storns than simple-chambered style in the same region.