Experimental Study on the Effects of Wetting-Drying Cycles of Compacted Loess

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Abstract:

It rains more concentrated in the summer with high temperature and strong evaporation in Gansu province, wetting-drying cycles usually occur in the embankment. Different collapse and uneven settlement appeared on the embankment in loess areas. Based on those engineering disease, through wetting-drying cycles tests of compacted loess, results show that void ratio increased, dry density decreased and cohesion significantly reduced with violent wetting-drying cycles. This illustrates that wetting-drying cycle has a significant impact on compacted loess and makes well-compacted loess with collapsibility again, it is the important reason of uneven settlement of embankment in northwest loess areas.

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326-330

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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