First, google earth is a software based on satellite images, which is of great help to engineering geological survey. For example, many geological structures and geological disasters can be clearly seen on google earth, which is of great significance for engineering geological exploration in the feasibility study stage, especially for highway and railway lines. With it, it can play a guiding role in the initial engineering geological surveying and mapping work. Especially in the absence of existing local geological data.

Secondly, in the specific construction, especially in the construction of line engineering, the map provided by google earth has a huge scope, which is more accurate than the topographic map provided by general design units. The 50,000 maps provided by general design units are often mapped earlier, which is far from reality. With google earth, we can make up for this deficiency and provide convenience for field construction.

Third, how to make better use of google earth requires good map reading ability and the ability to interpret aerial photos and satellite photos. Get the information we need from it.