EARTH-RETAINING TIMBERING STRUCTURE AND CORNER PART JOINT PIECE

To provide an earth-retaining timbering structure and a corner part joint piece used for the earth-retaining timbering structure, capable of improving work efficiency with a simple configuration.SOLUTION: An earth-retaining timbering structure reinforcing an earth-retaining timbering wall is provided with a corner joint piece placed on a convex corner part which is formed by abutting one of end surfaces of a wale against a side surface of the other wale adjacent to the one wale on the same flat surface. On one end of both end parts of the corner joint piece, a tension resistance joint structure is provided allowing resistance against tension force generated between the one wale and itself, and on the other end, a shearing resistance joint structure is provided allowing resistance against tension force and shearing force generated between the other wale and itself.SELECTED DRAWING: Figure 1 【課題】簡素な構成で作業効率を向上することの可能な、山留め支保構造及び山留め支保構造に用いる隅部結合ピースを提供する。【解決手段】山留め壁を補剛する山留め支保構造であって、一方の前記腹起しの端面を、同一平面上で隣り合う他方の腹起しの側面に突き合わせることにより形成された出隅部に、隅部結合ピースが配置され、該隅部結合ピースの両端部のうち、一端側に一方の前記腹起しとの間で生じる引張力に抵抗可能な引張抵抗結合構造が設けられるとともに、他端側に、他方に前記腹起しとの間で生じる引張力及びせん断力に抵抗可能なせん断抵抗結合構造が設けられていることを特徴とする。【選択図】図１