The purpose of this paper is to analyze the double stylobate of the three-story stone pagoda in Yeongnam region and to divide the types of arrangements of the body-stone and roof-stone and find their correlation. Research objects are 47 three-story stone pagodas in Yeongnam region which have accurate documents and plans. After dividing a double stylobate of three-story stone pagodas into a lower and upper stylobate, we classified each stylobate into a type of body-stone and roof-stone from an architectural point of view. Types of arrangement of body-stones are divided into methods of using the ‘ㅡ’ shaped stone and methods of using ‘ㄱ’ shaped stone in the corner. And types of arrangement of roof-stones are divided into methods of arranging stones in a row or in a grid pattern. As the size of the pagoda increases, ‘ㄱ’ shaped stones used for the body-stone and stones for the roof-stone are arranged in a grid pattern. As the size of the pagoda becomes smaller, the body-stone is consist of ‘ㅡ’ shaped stone, and the roof-stone is arranged in a row. As the construction year of the pagoda becomes later, the size of the pagoda becomes smaller and types of body-stone and roof-stone had been stereotyped. As a result, the size of the stone pagoda became smaller as constructed later, and the type of body-stone and roof-stone of the double stylobate appear differently according to the size of the pagoda.

Abstract
 1. 서론
  1-1. 연구 배경
  1-2. 연구 범위 및 방법
 2. 선행연구 고찰
  2.1 석탑 기단부 명칭
  2.2 석탑 기단부 유형 분류
  2.3. 재구성한 기단부 유형 분류
 3. 하층기단과 상층기단의 유형 분류 작업
  3.1 경주 감은사지 동삼층석탑
  3.2 경주 불국사 삼층석탑
  3.3 의성 관덕리 삼층석탑
 4. 중석과 갑석 분석
  4.1 하층기단의 중석과 갑석
  4.2 상층기단의 중석과 갑석
 5. 건립시기에 따른 이중기단 석탑의 경향
 6. 결론
 참고문헌

• 이준규(고려대학교 건축학과) | Lee June-Kyu
• 류성룡(고려대학교 건축학과) | Ryoo Seong-Lyong Corresponding Author