Prefabricated vertical drains with vacuum preloading is widely used in accelerating consolidation of dredger fill. Based on the property of ultra-soft soil and engineering demands, this paper proposes a 3D drainage system comprising a new-type drainage. First, the structural features, working principle, and construction technology of the 3D drainage are explained, and field test at dredger fill treatment project is used to verify the feasibility of the method. It is found in the field test that in contrast to the traditional plastic sheet drains, the 3D drainage system reduces the duration of vacuum preloading by 50% and increases the soil vane shear strength by 30%, producing good test results.
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H.P. Hong and J.Q. Shang, "Probabilistic analysis of consolidation with prefabricated vertical drains for soil improvement," Can. Geotech. J., 35, No.4, 666-677 (1998).
S. Lee, G. Karunaratne, K. Yong, et al., "Layered Clay-Sand Scheme of Land Reclamation," J. Geotech. Eng., 113, No.9, 984-995 (1987).
L.H. Li, Q. Wang, N.X. Wang, et al., "Vacuum dewatering and horizontall drainage blankets: a method for layered soil reclamation," Bull. Eng. Geol. Environ., 68, 277-285 (2009).
H. Kim and S. Hirokane, "Consolidation behaviour of dredged clay ground improved by horizontal drain method," Compression and Consolidation of Clayey Soils, Balkema,Rotterdam, 1, 99-104 (1995).
Zhang Chenghou and Chen Xuzhao, "Research on the consolidation of dredged soil by vacuum drainage," Water Transp. Eng, 1, 37-49 (1992).
Y.N. Lee, Y.H. Lee, and G.W. Kim, "Surface stabilization of dredged clay fill deposit," Civil and environmental engineering conference, Bangkok, Thailand (1999).
S.W. Yam, L.Q. Sun, W. Li, et al., "Model tests on vacuum preloading technology of super-soft soil," Chin. J. Geotech. Eng., 33, No.3, 341-347 (2011).
L.Q. Sun, S.W. Yan, W. Li, et al., "Study of super-soft soil vacuum preloading model test," Rock Soil Mech, 32, No.4, 984-990(2011). (in Chinese)
Z.L. Dong, G.X. Zhang, Q. Zhou, et al., "Research and application of improvement technology of shallow ultra-soft soil formed by hydraulic reclamation in Tianjin Binhai new area," Chin. J. Rock Mech. Eng., 30, No.5, 1073-1080 (2011).
Z.H. Sun, M.J. Gao and W. Zhou, "Assessment of vacuum preloading of soft sediment applied to various drainage schemes," Soil Mech. Found. Eng., 50, No. 6, 255-261 (2014).
Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 4, p. 40, July-August, 2016.
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Chen, G., Chen, Y., Qi, C. et al. Experimental Study on 3D Drainage System in Treatment of Dredger Fill. Soil Mech Found Eng 53, 286–290 (2016). https://doi.org/10.1007/s11204-016-9400-x