When it comes to any kind of construction, the main focus always is to find ways to prevent a collapse. The sense of security that comes with durable buildings, which is able to withstand the harshest conditions, is basically priceless.
Shoring works basically involves the construction of an additional support structure that prevents a building from collapse. Usually, shoring is used in deep excavation too, to prevent the toppling of the retained soil.
However, it is important to understand that not all structures enjoy the same condition. They are built on different terrains, under varying conditions, using varying resources. So, in order to support structures of varying types, various types of shoring are resorted to.