Guardrail structure adjustment-based control method for accumulated sand on pavement of high-grade highway in sand land

The invention relates to a guardrail structure adjustment-based control method for accumulated sand on a pavement of a high-grade highway in a sand land. A device related to the method comprises a fixed upright post, a reflecting film, a cable and reflecting delineators. Proved by a wind tunnel test result, disturbance of a cable guardrail in the method to flow is small and no accumulated sand is generated on the ground. The cable is colorful or has a night light-emitting function, the reflecting film is pasted on the fixed upright post of the cable, and the reflecting or solar lighting delineators are fixed on the cable at intervals, so that the defect of poor sight guidance of a common cable guardrail is compensated by the measures, and the method has the effects of improving and beautifying road landscape. The problem of accumulated snow on the pavement of the high-grade highway in the sand land at present can be solved, development of traffic construction in the sand land is promoted and the control metho