Open Access

ARTICLE

Information Monitoring Technology for Support Structure of Railway Tunnel During Operation

by Licai Zhao¹, Shishuenn Chen

1 Department of Civil and Construction Engineering, National Taiwan University of Science and Technology, Taiwan, Taipei, 10607.

* Corresponding author: Licai Zhao. Email: .

Structural Durability & Health Monitoring 2018, 12(1), 35-50. https://doi.org/10.3970/sdhm.2018.012.035

Abstract

In the process of railway construction, because of the inconvenience of geological condition, water bursting and mud surging happen frequently, and the later deformation of support structure on the happening geology section would threaten the normal running of railway. The limit difference of deformation control value of the support structure section where geological accidents frequently happen, is small, and artificial half-automatic supervisory technology cannot get the health condition of tunnel in time, resulting many cars speed-down accidents due to deformation of support structure. Through design innovation, we introduce TGMIS in the later period of Yanzishan railway construction to quickly capture the deformation of support structure, the strain of lining concrete, the strain of steel frame, stress of surrounding soil, stress of surrounding water, strain of second lining steel bar and other situ data. Also we set observation prism and measuring robot device in specific position inside tunnel, and robot laser locator laser spot is projected onto reflection target surface, by graphic processing algorithm, the receiver calculates the measured value and standard value of the 3D coordinates of the laser spot. Then the information is transmitted through transmitting device, transducer and USB-485 to computer to predict and evaluate the health condition of the support structure of the tunnel so as to provide safety warning information. Provide timely and reliable data for the operation company to avoid the occurrence of vicious accidents.

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Keywords

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