Shallow soil layer underground obstacle investigation method based on geophysical prospecting and exploration

The invention provides a shallow soil layer underground obstacle investigation method based on geophysical prospecting and exploration, which comprises the following steps of: firstly, collecting historical building (structure) data and geological data of a to-be-investigated area, analyzing the soil texture condition of a rock-soil layer, and paying attention to distribution areas of historical building (structure) foundations, retaining walls, pile foundations and the like where underground obstacles are possibly generated; secondly, a static sounding device is adopted to carry out comprehensive probing on the to-be-built area, the rough distribution range of the underground obstacles is preliminarily circled, and then a geological radar detection device is adopted to accurately detect the specific distribution position and the buried depth of the underground obstacles; and finally, drilling is carried out by arranging holes in positions such as edge angular points and a central area of the underground obst