回答
基板上に丸太材を井桁状や壁状に組み上げ、ボルトで基板に固定すし、構築物用ユニットを構成する。
Round timbers are assembled in a double cross or a wall-shape on a base board, and fixed to the base board with bolts to constitute a unit for a building.
http://ejje.weblio.jp/sentence/content/%E6%B1%B2%E3%81%BF%E4%B8%8A%E3%81%92%E6%B9%AF%E8%91%89
このとき、串刺しされて組み上げられた左右両隣の自然石4の各隙間には、その隙間幅より大きい間詰め石5をかみ合わせて組み上げ、壁面を構築して行く。
Interfilling stones 5 the sizes of which are larger than the width of the gap between the adjacent natural stones 4 on the right and left sides which are skewered and assembled are engaged with the gap to assemble the natural stones so as to construct a wall surface.
http://ejje.weblio.jp/sentence/content/%E6%B1%B2%E3%81%BF%E4%B8%8A%E3%81%92%E6%B9%AF%E8%91%89