Bridge scouring multi-source monitoring system and monitoring method and scouring depth evaluation method thereof

Abstract

The invention discloses a bridge scouring multi-source monitoring system, a bridge scouring multi-source monitoring method and a scouring depth evaluation method. The bridge scouring multi-source monitoring system comprises an intelligent monitoring system, a data industrial personal computer, a 5G remote communication transmission system and a remote scouring depth evaluation center. The intelligent monitoring system is composed of three subsystems including a bridge dynamic characteristic high-frequency real-time monitoring system, an adjustable sound velocity underwater depth monitoring system and a flushed seabed soil pressure change testing system. Pile side data can be acquired in a triggered control mode through mutual coupling, a multi-source bridge local scouring real-time sensingand monitoring system is formed, and clock synchronization, scouring environment condition dynamic control and integrated integration of a contact sensor and a non-contact sensor are achieved. The system can perform integrated monitoring on a scouring interface, seabed sludge scouring and silting and bridge dynamic response; and the structure scouring depth evaluation method can provide a basis for bridge maintenance, and safe operation of a bridge under the scouring action is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of electronic monitoring control and evaluation, in particular to a multi-source monitoring system for bridge scour, a monitoring method thereof, and a scour depth evaluation method. Background technique [0002] As a lifeline project, bridges need to withstand various natural disasters. Among many bridge disaster-causing factors, foundation scour is one of the main reasons for bridge damage; Phenomenon. The scouring of the bridge will affect the appearance of the bridge and the driving comfort in the slightest, and cause damage to the bridge in the severe case. The US Transportation Safety Board counted 1,502 collapsed bridges from 1966 to 2005 and found that 58% of the damage was caused by scour of bridge foundations and related hydraulic effects. In recent years, a large number of bridges built in China are in the environment of water erosion, and the problem of foundation erosion has become increasingl...

AI Technical Summary

Problems solved by technology

At present, there are few foundation scour monitoring methods applied to large-scale cross-sea bridges. Sediment scour and sediment have a lagging effect relative to the change of tidal flow velocity, and there are insufficient monitoring of muddy soil scour and silt back. This urgently requires people to find new bridge foundation scour The monitoring method is used to make up for the shortcomings of the previous methods, improve the accuracy and work efficiency of scour monitoring, and make an accurate assessment of the scour depth of the bridge pile foundation to identify the safety status of the bridge and take effective bridge protection measures for the bridge management department in time. Ensuring the safe operation of the bridge has positive social significance

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