English to Polish Tech/Engineering Construction / Civil Engineering

Shoring is the provision of a support system for trench faces used to prevent movement of soil, underground utilities, roadways, and foundations.
Shoring or shielding is used when the location or depth of the cut makes sloping back to the maximum allowable slope impractical.
Shoring systems consist of posts, wales, struts, and sheeting.
There are two basic types of shoring, timber and aluminum hydraulic.