Wind Damage Analysis And Prevention And Control Measures Of Expressway In Thirty Mile Wind Area Of Xinjiang

Based on the project Lianhuo Expressway G30 Xiaocaohu to Turpan section(Xinjiang 30 Lifeng District),the key technical problems in the construction of wind and sand prevention and control projects in this area are clarified by field investigation,wind tunnel experiment,numerical analysis and experimental demonstration.The temporal and spatial distribution of heavy wind and sand flow in Lifeng District,analysis of the characteristics of sand-sand flow in the strong wind area,the sand interception effect of the sand-blocking project under high wind conditions,and the force status of the wind-proof project under strong wind;The key geometric parameters and structural parameters of the highway windbreaking project define the maximum wind speed threshold for safe driving of the vehicle after the windshield measures are set,which provides reference for the design and calculation of the windshield safety measures,and provides the safe operation management for the expressway highway.Scientific basis;determine the sand-blocking and sand-fixing measures and structural parameters that are suitable for the wind-proof and intercepting sand-sand flow function of the Gobi wide-section expressway in the strong wind area,and form the first barrier for highway sand-sand interception and strong wind weakening,and reduce The wind and sand flow accumulation pressure of the windproof project;the formation of a strong wind zone wide road expressway Sand control project construction technology system,the preparation of technical guidelines.The research results will provide a scientific basis for the design of wind and sand prevention and control projects in the area,effectively reduce traffic accidents caused by strong winds,ensure the normal operation of highway traffic in this section,and provide reference for the construction of traffic trunk sandstorm prevention and control projects in other similar environments in China.