Study on grading evaluation of moisture content in subgrade bed of high-speed railway based on ground penetrating radar technology

Yuanshui Cheng; Taifeng Li; Cui Du; Jingyu Liu; Xingang Zhang; Wenda Zhang

doi:10.1117/12.2660578

31 October 2022 Study on grading evaluation of moisture content in subgrade bed of high-speed railway based on ground penetrating radar technology

Yuanshui Cheng, Taifeng Li, Cui Du, Jingyu Liu, Xingang Zhang, Wenda Zhang

Author Affiliations +

Proceedings Volume 12457, Second International Conference on Testing Technology and Automation Engineering (TTAE 2022); 124570Z (2022) https://doi.org/10.1117/12.2660578
Event: Second International Conference on Testing Technology and Automation Engineering (TTAE 2022), 2022, Changchun, China

Abstract

Water is an essential factor affecting the use function of the subgrade, and excessive moisture content of the subgrade itself may cause potential diseases such as subgrade bed subsidence and mud pumping. As a dynamic acceptance project of a high-speed railway with a speed of 200 km/h and above in China, the lack of evaluation index of subgrade moisture content not only affects the dynamic acceptance evaluation, but also brings great difficulties to the disposal of abnormal sections of subgrade moisture content. To solve the problem of grading evaluation of moisture content in subgrade bed of railway, based on the previous ground penetrating radar detection of high-speed railway subgrade, the grading evaluation index of moisture content in subgrade bed of high-speed railway is proposed by collecting, processing, evaluating and analyzing the data of water content in subgrade bed, and tracking the occurrence of diseases in abnormal water content section of subgrade, which provides the basis for dynamic acceptance of high-speed railway in China and important guidance for maintaining the abnormal section of the subgrade with moisture content.

Citation Download Citation

Yuanshui Cheng, Taifeng Li, Cui Du, Jingyu Liu, Xingang Zhang, and Wenda Zhang "Study on grading evaluation of moisture content in subgrade bed of high-speed railway based on ground penetrating radar technology", Proc. SPIE 12457, Second International Conference on Testing Technology and Automation Engineering (TTAE 2022), 124570Z (31 October 2022); https://doi.org/10.1117/12.2660578

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