BAI Mei,LIU Zhibin,ZHANG Shujian,et al.Experimental Study on Roll⁃resistance Performance of GCL for Subgrade Engineering[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(03):629-634.
BAI Mei,LIU Zhibin,ZHANG Shujian,et al.Experimental Study on Roll⁃resistance Performance of GCL for Subgrade Engineering[J].Journal of Disaster Prevention and Mitigation Engineering,2021,41(03):629-634. DOI: 10.13409/j.cnki.jdpme.201904011.
Experimental Study on Roll⁃resistance Performance of GCL for Subgrade Engineering
To study the roll-resistance performance of GCL for subgrade engineering, the granular GCL with double-layer non-woven and the granular GCL cloths were studied through compaction damage tests in laboratory and rolling tests in the field. The damage conditions of GCL after compaction damage tests were evaluated at first, and then the waterproof performance of damaged GCL were investigated using rainfall simulation tests. The tensile strength and permeability coefficient of GCL after rolling tests were obtained. The results show that GCL had piercing holes after compaction damage tests and the non-woven cloth of GCL damaged. The waterproof capacity of the granular GCL and the granular GCL with double-layer non-woven cloth had a reduction after compaction damage tests. Although the tensile strength of the two kinds of GCL decreased slightly and the permeability coefficients increased after rolling tests, these values meet the mechanical and impermeability requirements of GCL for subgrade engineering.
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