Tunnel runtime deformation monitoring forecast system and method

A deformation monitoring and forecasting system technology, applied in measuring devices, instruments, optical devices, etc., can solve the problems of low deformation rate, inability to monitor surrounding rock deformation, and low management efficiency, and achieve scientific and convenient monitoring management, monitoring and prediction The results are accurate and reliable

Active Publication Date: 2017-03-15
CHONGQING UNIV
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Problems solved by technology

[0004] In short, the current relevant monitoring methods are mainly based on the deformation of the surrounding rock, and seldom take the deformation rate into account, and mainly focus on monitoring the boundary deformation, and cannot monitor the deformation inside the surroundin

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  • Tunnel runtime deformation monitoring forecast system and method
  • Tunnel runtime deformation monitoring forecast system and method
  • Tunnel runtime deformation monitoring forecast system and method

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[0027] The present invention will be further described below in conjunction with the accompanying drawings and examples, and the contents of the examples are not intended to limit the protection scope of the present invention.

[0028] figure 1 A schematic diagram of the composition of the tunnel deformation monitoring and forecasting system during operation is shown. Such as figure 1 As shown, the tunnel deformation monitoring and forecasting system during operation of the present invention includes a distributed optical fiber sensor 1 arranged in the monitoring section A of the tunnel, an optical fiber strain analyzer 2 located in the tunnel, and a data transmission unit 4 located outside the tunnel, GPRS Module 5 and monitoring center computer 6. The optical fiber strain analyzer 2 is connected to the data transmission unit 4 through an optical fiber 3 .

[0029] Wherein, the distributed optical fiber sensor 1 is used to obtain tunnel deformation amount and tunnel deform...

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Abstract

The invention relates to a tunnel runtime deformation monitoring forecast system and method. The system comprises distributed fiber sensors (1) arranged in a monitoring section (A) of a tunnel, a fiber strain analyzer (2), a fiber (3), a data transmission unit (4), a GPRS module (5) and a monitoring center computer (6), wherein tunnel deformation quantity and tunnel deformation rate data which are collected by the distributed fiber sensors (1) are stored in the fiber strain analyzer (2) and is transmitted to the data transmission unit (4) disposed outside the tunnel through the fiber (3), and the data transmission unit (4) transmits the tunnel deformation quantity and tunnel deformation rate data to the monitoring center computer (6) through the GPRS module (5). The system and method combine a neural network method with a gray model method to carry out tunnel surrounding rock deformation quantity and deformation rate prediction, enable a monitoring result to be more scientific and reasonable, is more accurate in prediction result and is more scientific and systemic in monitoring prediction management.

Description

technical field [0001] The invention belongs to the field of tunnel safety monitoring and prediction, in particular to a tunnel deformation monitoring and prediction system and method during operation. Background technique [0002] With the rapid development of tunnel engineering construction technology and design theory, more and more tunnels (roads, railways, subways, etc.) are being built in my country. The stability of surrounding rock deformation is closely related to the safety of tunnel engineering. The main manifestation of tunnel engineering accidents is the instability of surrounding rock, which makes the monitoring of tunnel surrounding rock deformation more and more important. At the same time, tunnel deformation monitoring technology has also been developed by leaps and bounds. With the advent of the era of information-based surveying and mapping, the sensor network technology with digital information as the core has had a profound impact on the design, constru...

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Application Information

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IPC IPC(8): G01B11/16
CPCG01B11/16
Inventor 赵瑜胡波沈维克曹汉靳开明向伟田欣
Owner CHONGQING UNIV
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