Author:
Bykov A. A.,Surzhik D. I.,Vasilyev G. S.,Kuzichkin O. R.
Abstract
During the operation of the railway track, various defects and deformations may occur and accumulate in the earth bed and its soil base, which leads to a violation of their bearing capacity. The task of developing new technological methods for monitoring the condition of the ground foundation – roadbed – railway track system is becoming urgent. The article proposes a geoelectric phase-measuring method for monitoring the phase of recorded signals with changes in the load on the ground at the base of the railway track. The control of phase characteristics allows for greater sensitivity, accuracy and noise immunity compared to the control of the amplitude of geoelectric signals. The developed laboratory setup allows simulating various natural processes (changes in soil moisture, suffusion, karst dips, landslides, landslides, and others) and assessing their impact on the railway transport complex. The installation contains a model of the controlled object (a container with soil), generators of probing signals, a subsystem for recording signals in the environment, a subsystem for data processing. The proposed approach makes it possible to detect early geodynamic indicators of deformations of the railway trackbed.
Publisher
Izdatel'skii dom Spektr, LLC
Subject
General Medicine,General Chemistry
Reference17 articles.
1. Baymahan A. R., Zhumanova Z. E., Baybatyrova A. N., Baymahan R. B. (2015). Calculation of the deformation stability of the system "inclined layered soil base - foundation - building". Global'niy nauchniy potentsial, 55(10), pp. 33 – 35. [in Russian language]
2. Yan H., Gao C., Elzarka H. et al. (2019). Risk assessment for construction of urban rail transit projects. Safety Science, Vol. 118, pp. 583–594.
3. Zheng Y., He S., Yu Y. et al. (2021). Characteristics, challenges and countermeasures of giant karst cave: A case study of Yujingshan tunnel in high-speed railway. Tunnelling and Underground Space Technology, Vol. 114.
4. Romero‐Ruiz A., Linde N., Keller T., Or D. (2018). A review of geophysical methods for soil structure characterization. Reviews of Geophysics, Vol. 56, pp. 672–697. DOI: https://doi.org/10.1029/2018RG000611.
5. Draft Environmental Impact Report. (2012). Preston Property Residential Project State Clearinghouse No. 2012022075. Milpitas. Available at: http://www.ci.milpitas.ca.gov/_pdfs/plan_eir_PrestonPropertyAppendices, Part1.pdf (Accessed: 15.11.2012).