Method for deploying strong wind monitoring points on rapid transit railway

Abstract

The invention discloses a method for deploying strong wind monitoring points on a rapid transit railway, comprising the following steps: analyzing the gale distribution characteristics and carrying out statistics on the wind speed frequency distribution under each wind direction based on the information of wind speeds, wind directions and the like of weather stations along and around the rapid transit railway line, and deploying basic monitoring points; establishing the correlationship of winds fields between any two monitoring points along the railway line under complicated terrains based onthe geographic and geomorphic information, simulating the wind fields along the rapid transit railway line by adopting the computational fluid dynamics (CFD) method theory and method, and deploying interpolated monitoring points; and simulating the wind fields of special road sections, and deploying special monitoring points by combining with wind tunnel tests. The method provided by the invention overcomes the defects of high cost, strong subjectivity, low accuracy and the like in the traditional method which gives priority to field survey and qualitative analysis, realizes deployment of strong wind monitoring points in rapid transit railways under various weather types and environmental conditions, has high simulation accuracy and low monitoring point deploying cost, and provides support for effective monitoring and safety running of rapid transit railways.

Description

technical field [0001] The invention belongs to the technical field of monitoring and control for safe driving of high-speed railways in windy weather, and relates to a method for laying out high-speed railway monitoring points for strong winds, in particular to a method for laying out hierarchical monitoring points based on quantitative calculation . Background technique [0002] Due to the characteristics of strong transportation capacity, fast speed, high punctuality rate, all-weather operation and high economic efficiency, high-speed railway plays an increasingly prominent role in the transportation system. In order to alleviate the tense situation of railway transportation and meet the needs of national economic and social development, my country is currently vigorously building high-speed railways. Due to the light body and fast speed of high-speed trains, the buoyancy force and pitching moment generated during operation are large, and the train is sensitive to the in...

AI Technical Summary

Problems solved by technology

Due to the high cost of high-speed railway wind monitoring, it is difficult to arrange large-scale measured points before the optimal point is determined, so the atmospheric environment monitoring method is not suitable for the layout of high-speed railway high-wind monitoring points

[0004] At the same time, several high-speed railways that have been built, are under construction or are to be built in my country have a long mileage and span multiple climatic zones. There are many special wind environments such as long bridges, viaducts, hills and mountainous tuyere along the line, directly copying foreign layout principles and values. The simulation method to analyze the wind field along the high-speed railway in my country may cause large errors

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