Road surface sampling device and sampling method for road detection

The invention belongs to the technical field of highway construction, and particularly relates to a pavement sampling device and method for highway detection.The pavement sampling device comprises a sampling vehicle for pavement sampling, an integrated plate integrating parts is installed on the upper surface of a rear vehicle bottom plate of the sampling vehicle, and a lifting steering mechanism is arranged on the upper surface of the integrated plate; a sampling mechanism is further connected with the lifting steering mechanism, and a cut-off mechanism is arranged in the sampling mechanism. According to the pavement sampling device applied to road detection and the sampling method, a piston rod of a telescopic air cylinder pushes an adjusting rod up and down in an action cavity, the adjusting rod drives a sliding block to move up and down on the outer surface of a sliding rod when moving up and down, and a reset spring is compressed; and therefore, a screw rod which is in threaded connection with the interi