Railway slope landslide information collection and early warning systems based on distributed fiber sensing

Abstract

The invention discloses railway slope landslide information collection and early warning systems based on distributed fiber sensing. The collection system comprises a linear continuous monitoring sequence and a control cabinet; the linear continuous monitoring sequence is composed of fiber sensor buried in the slope structure at one side of a railway in an M shape, and the slope condition can be comprehensively and effectively monitored without omission; and the control cabinet comprises an optical path module which can generate pumping laser pulses, a circuit module which controls the optical path, and a communication module which transmits data to a monitoring room. The system monitors deformation of the railway slope via the fiber sensors which are buried in the distributed manner, and transmits collected information to the control cabinet in real time via the wireless communication module; the system can effectively forecast slope landslide, and predict possible slope landslide according to trends of data; and the systems are characterized by high stability, high anti-interference capability and long signal transmission distance.

Description

technical field [0001] The technology of the invention belongs to the field of railway transportation safety monitoring, and relates to a railway slope landslide information collection and early warning system based on distributed optical fiber sensing. Background technique [0002] In recent years, my country's railway transportation system has developed rapidly, the mileage of high-speed railways has increased rapidly, and the speed of trains has become faster and faster. The safety requirements for driving have become higher and higher, and the pressure to ensure the safe operation of trains has also increased. Slope is the most common engineering form in railway engineering construction. As one of the three major global geological disasters, landslides caused by slope deformation and instability, as well as landslides caused by landslides and debris flows caused by heavy rains, often cause serious damage to national construction and people's lives and property. With the...

AI Technical Summary

Problems solved by technology

The existing problem is that the data collection needs to be carried out manually at the site on a regular basis, which makes the landslide monitoring lack of real-time performance.

[0006] However, at present, the research on optical fiber sensing at home and abroad is mostly used in laboratory experiments, and there is no design and implementation case for railway slope landslide monitoring and early warning.

Images