System for observing and simulating wind-wave-flow coupling field for sea-crossing bridge

Abstract

The invention discloses a system for observing and simulating a wind-wave-flow coupling field for a sea-crossing bridge, and the system comprises a wind observation system, a wave flow observation system, a tide level observation system, a data collection and storage system, and a wind-wave-flow coupling field numerical analysis system. The wind observation system comprises a plurality of wind observation stations, and the wind observation stations are located on the lands of two shores for gradient wind observation. The wave flow observation system comprises a plurality of wave flow observation stations, and the wave flow observation stations are located in nearby water areas for continuous observation of wave surfaces and layered flowing speeds. The tide level observation system comprises a plurality of tide level observation stations, and the tide level observation stations are located in water areas which are located at the place of the bridge and nearby the shores. The observation data of the spatial correlation among wind, wave, ocean current and tide level and the time synchronization and continuous observation data are stored in the data collection and storage system. Based on the above observation data, the wind-wave-flow coupling field numerical analysis system builds a wind-wave-flow coupling field numerical simulation model. The wind-wave-flow coupling field characteristic parameters which are spatially correlated and synchronous in time and act on the bridge are analyzed through combining with historical observation data after verification and correction.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, and is a device for observing the wind, wave, ocean current and tide level in the wind-wave-current coupling field near the cross-sea bridge, and obtaining the time synchronization, continuity and spatial correlation of each position of the bridge. Observation and simulation system of characteristic parameters of wind, wave, ocean current and tide level. Background technique [0002] As bridge construction moves from inland to the open sea, bridge construction is facing severe challenges in harsh marine environments such as deep water, strong winds, rapids, and huge waves. On-site observation data such as wind, wave, current and tide level are the first-hand information for evaluating the environmental load of cross-sea bridges, and are the key factors to control the construction and operation safety of cross-sea bridges. [0003] For sea-crossing bridges, there is a strong coupling b...

AI Technical Summary

Problems solved by technology

However, the observation of waves and currents in the offshore waters was carried out relatively late, with few observation stations and relatively lagging observation techniques

Most of the early wave observations in my country were based on visual observations, and the accuracy and representativeness of the observation data could not meet the requirements of cross-sea bridge engineering applications.

Therefore, the on-site observation data of wind, wave, current and tide level near the bridge across the open sea are very limited, and there is a lack of spatial correlation, time synchronization and continuity of wind, wave, current and tide level at the bridge position during the typhoon process. Observations, unable to analyze and obtain spatially correlated, time-synchronized and continuous wind loads, wave loads and ocean current loads acting on key positions on the bridge

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