Method for identifying damage of lateral bulging base layer of asphalt concrete pavement in northwest desert area

The invention provides a method for identifying damage of a lateral bulging base layer of an asphalt concrete pavement in the northwest desert area. The method comprises the steps that first a bottombase layer is tested, drilling holes are selected on the bottom base layer, after construction of a concrete support is completed and before a foundation pit is excavated, drilling is performed at testing positions, the hole diameter is larger than the outer diameter of protective steel pipes, the depth is the length of the protective steel pipes, after the holes are formed, the protective steel pipes are hung into the holes by a hoisting machine, and the protective steel pipes are temporarily fixed to prevent the steel pipes from continuing to sink; according to the connection sequence of a plurality of PVC pipes, a steel wire rope penetrates through a plurality of magnetic rings with upper steel elastic sheets, position camping rings, PVC pipe joints and the PVC pipes, and the position camping rings are fixed wi