| 摘要 |
<p>Element for depositing in ditches and cavities in the ground, for laying pipes, cables and similar parts, previous to filling with filling material, and/or for founding brick walls and other immersed structures. In use the element is laid close to the pipe or the like, during placement. The element includes a sleeve which is filled with a filling material with insulating characteristics. The sleeve is a closed, liquid-tight long bag (20) which is filled with a powdery, fibre-shaped or granular material (21), which in unfolded condition is shaped as a pillow or blanket.</p> |
