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Civil Infrastructures Confronting Severe Weathers and Climate Changes Conference

GeoChina 2018: Sustainable Design and Construction for Geomaterials and Geostructures pp 79–90Cite as

Experimental Study on the Seepage Feature of Natural Loess Joint

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Part of the book series: Sustainable Civil Infrastructures ((SUCI))

Abstract

In order to obtain the seepage law of natural loess joint, this paper puts forward a set of methods for getting the natural loess joint and processing standard triaxial specimens to test its permeability coefficient on the basis of a large number of site experiments. By designing contrast experiment, the permeability coefficient of each sample is measured by making use of Global Digital System (GDS) triaxial osmotic instrument. The experiment results are shown as follows: (1) The permeability coefficient of complete sample is about 2.23–3.58 × 10−6 cm/s and it is about 85–360 × 10−6 cm/s when it includes joint, the existence of joint greatly enhances the seepage ability of loess mass. (2) When the loess joint shares same average opening, its permeability coefficient is slightly lower than the artificial joint because the large fluctuation and certain contact area of natural joint. (3) Loess and joints can produce a certain amount of water exchange, which improves the whole penetration ability significantly.

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Acknowledgements

This paper is funded by the National Natural Science Foundation of China (Grant no. 51408464).

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Authors and Affiliations

  1. College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China

    Xiaojun Liu, Qing Kong & Xing Zheng

Authors
  1. Xiaojun Liu
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  2. Qing Kong
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  3. Xing Zheng
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Corresponding author

Correspondence to Xiaojun Liu .

Editor information

Editors and Affiliations

  1. Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales, Australia

    Behzad Fatahi

  2. University of Zambia, Lusaka, Zambia

    Aron Mwanza

  3. Chung Yuan Christian University, Taoyuan City, Taiwan

    Dave T.T. Chang

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Liu, X., Kong, Q., Zheng, X. (2019). Experimental Study on the Seepage Feature of Natural Loess Joint. In: Fatahi, B., Mwanza, A., Chang, D. (eds) Sustainable Design and Construction for Geomaterials and Geostructures. GeoChina 2018. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-319-95753-1_7

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