| 摘要 |
The present invention relates to a bellows jack for filling a gap between an earth retaining wall and a wale and more specifically, to a bellows jack for filling a gap between an earth retaining wall and a wale capable of easily binding the earth retaining wall and the wale each other by easily filling the existing irregular separation space between the earth retaining wall and the wale. The present invention has a plastic case structure having an open upper part to be expanded and contracted, is inserted into a narrow separate space between the retaining wall and the wale, and fills the separated space with concrete, thereby easily and simply filling the separate space between the retaining wall body and the wale. If the separate space between the retaining wall and the wale is large, the multiple bellows jacks are mutually connected, thereby accommodating and filling both of the different separate spaces between the retaining wall and the wale. |
