| 摘要 |
PURPOSE: A timber-thinning crib for aquatic ecology restoration is provided to enable aquatic ecology restoration using thinning timbers which is environment-friendly and recyclable. CONSTITUTION: A timber-thinning crib for aquatic ecology restoration comprises vertical frames(1~3), horizontal frames(4~7), and a connection member(9~20). The vertical frame is vertically built on the bottom of the river. The horizontal frames are installed at fixed intervals vertically to the horizontal frame. The connection member fixes the horizontal frame on the vertical frame. The vertical frame and the horizontal frame are made of the thinning timbers. The connection member is made of environment-friendly gunny bag string. |
