Early-warning system and method for installation of final connector of immersed tunnel

A technology of immersed tunnel and early warning system, applied in radio wave measurement system, measurement device, utilization of re-radiation, etc., can solve the problems of low reliability, high measurement accuracy, joint damage, etc., and achieve good waterproofness and measurement accuracy. High, the effect of increasing the numerical difference

Inactive Publication Date: 2017-12-05
NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG
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Problems solved by technology

However, when the final joint is docked with the immersed tubes at both ends, the distance between the docking surfaces is small, and the measurement accuracy is required to be high
However, due to the large number of mechanical structures, the

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  • Early-warning system and method for installation of final connector of immersed tunnel
  • Early-warning system and method for installation of final connector of immersed tunnel

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0024] The early warning system used in the installation of the final joint of the immersed tube tunnel includes a monitoring host and several sonar altimeters. Among them, at least two sonar altimeters are respectively arranged on the two docking surfaces of the final joint, and each sonar altimeter is connected to the monitoring host, and the monitoring host collects the distance data sent by each sonar altimeter, and when the distance data sent by any sonar altimeter When the distance is less than the safety distance, an alarm prompt will be displayed to prompt the staff to perfor...

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Abstract

The invention discloses an early-warning system and method for the installation of a final connector of an immersed tunnel, and the method comprises a monitoring host and a plurality of sonar altimeters. Two butt joint surfaces of the final connector are respectively provided with at least two sonar altimeters, and two ends of the bottom edges of the butt joint surfaces of the final connector are respectively provided with one sonar altimeter. Each sonar altimeter is connected with the monitoring host, and the monitoring host collects the distance data transmitted by each sonar altimeter. Moreover, when the distance data transmitted by any one sonar altimeter is less than a safety distance, the system gives an alarm for prompt. Because the sonar altimeters are high precision, are good in waterproof performances and are high in reliability and the monitoring host is used for automatically processing the data, the system is high in precision and is reliability.

Description

technical field [0001] The invention belongs to the technical field of installation and construction of final joints of immersed tunnels, and in particular relates to an early warning system and method for installation of final joints of immersed tunnels. Background technique [0002] At present, the underwater distance measurement method of the immersed tube tunnel usually uses a retractable mechanical displacement sensor for measurement. However, when the final joint is docked with the immersed tubes at both ends, the distance between the docking surfaces is small, and the measurement accuracy is required to be high. However, due to the large number of mechanical structures used in the measurement of the retractable mechanical displacement sensor, the reliability is not strong. Once a fault occurs or the distance measurement deviates, it is very likely to damage the final joint, or even cause irreparable consequences. Contents of the invention [0003] The object of the...

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Application Information

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IPC IPC(8): G01S15/08
CPCG01S15/08
Inventor 锁旭宏张秀振刘兆权刘国辉孙阳阳徐良张超陶振杰
Owner NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG
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