Effects of Anti-Clogging in Ultra-Soft Soils Using Different Composite Filter Material

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An experimental study on drainage of different composite filter material in Wenzhou ultra-soft soils was carried out, to investigate the effects of anti-clogging for these composite material. A new instrument was designed to simulate draining process of the ultra-soft soils under vacuum loadings. Based on the experimental results in the form of pump quantity of water, the average settlement of the sludge, the pumping rate and the water content, a comparison was made among six composite filter material (e.g., PVA-1, PVA-2, SAP, superfine fiber, coral cashmere fiber and bamboo fiber) and a traditional non-woven fabric material. The results demonstrate that, PVA-2 composite material is the best way to keep from clogging in the ultra-soft soils. The effects of the anti-clogging is depended on the characteristics of the water absorbency and retention.

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3-7

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April 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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[1] Tiejun Zhang, Jianwen Ding, Dongsheng Deng, Zhenshun Hong. Study on variation of lime treatment [J]. Rock and soil mechanics, moisture content dredged sludge with high water content rate of 2009, 30 (9): 2775-2791.

Google Scholar

[2] Hongsheng Jiang, Jianquan Li, Takahashi Masao. River dredging sludge solidification processing equipment, process and application of [J]. Chinese municipal engineering, 2011, (6): 34-35.

Google Scholar

[3] Yan S W, Chu J. Soil improvement for a storage yard using the combined vacuum and fill preloading method [J]. Canadian Geotechnical Journal, 2005, 42(4): 1094-1104.

DOI: 10.1139/t05-042

Google Scholar

[4] Jiancai Zhu, Lanyun Chen, Xiaonan Gong. Construction of high grade highway soft ground by vacuum combined with surcharge preloading [J]. Chinese Journal of rock mechanics and engineering, experimental study on 2005, 24 (12): 2160-2165.

Google Scholar

[5] Zhiqiang Yu, Jianxin Hua, ShuWang Yan. Some problems of soft soil foundation [J]. Engineering investigation reinforced by plastic drainage plate, 2005 (2): 12-14.

Google Scholar

[6] Watson P D J, John N W M. Geotextile filter design and simulated bridge formation at the soil–geotextile interface [J]. Geotextiles and Geomembranes, 1999, 17(5): 265-280.

DOI: 10.1016/s0266-1144(99)00013-8

Google Scholar

[7] Yongzhi Zhu, Yuping Cao. Engineering geological characteristics of silt of Wenzhou [J]. West China prospecting engineering. 2006 (4), 24-25.

Google Scholar

[8] Rawala A., Anandjiwala R. Comparative study between needle-punched non-woven geotextile structures made from flax and polyester fibers [J]. Geotextiles and Geomembranes, 2007, (25): 61-65.

DOI: 10.1016/j.geotexmem.2006.08.001

Google Scholar

[9] Yuan Zhou. Experimental study of vacuum permeability dredged mud separation and influence factors [D]. Nanjing: Hohai University, (2010).

Google Scholar