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http://dx.doi.org/10.12814/jkgss.2022.21.4.079

Strength and Durability Test of Rapid Hardening Composite Mat for Protect Railway Slope in Operation  

Hyun-Sang, Yoo (Dept. of Audit&Inspection)
Tae-Hee, Kang (Dept. of Railroad Construction and Safety Engineering, Dongyang University)
Hyuk-Sang, Jung (Dept. of Railroad Construction and Safety Engineering, Dongyang University)
In-Chul, Back (Dept. of Technology Reserch)
Publication Information
Journal of the Korean Geosynthetics Society / v.21, no.4, 2022 , pp. 79-91 More about this Journal
Abstract
Recently, the frequency of damage to slopes for highways, railways, and complexes has been increasing according to abnormal climates such as heavy rainfall or snowfall. Rapid Hardening Composite Mat (RHCM) could be a satisfactory alternative because it has the advantages that large-scale earthwork is not essential and the period for restoration is minimized. Also, this method does not require heavy machines and a phase of maintenance for slopes against the shotcrete method or planted slope protection, which are representative slope protection methods. Furthermore, the curing time is shorter than Geosynthetic Concrete Composite Mat (GCCM). Therefore, RHCM could be useful for emergency restoration work. Thus, in this study, the strength and duration of RHCM are estimated, compared, and analyzed with GCCM. As a result of the laboratory test, the strength of RHCM is greater 51%, and the duration is larger 69% than GCCM.
Keywords
Railway slope; Rapid hardening composite mat; Formation level; Rapid construction backfill; Emergency restoration;
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