Field large-scale relative density tests of gravel soil of Yulongkashi high earth-rock fill dam

DOI

10.2991/iceep-18.2018.127How to use a DOI?

Keywords

Gravel soil. Relative density. Field test. Optimum coarse grain content. Three factors chart

Abstract

The compaction rate of gravel soil is usually characterized by the “relative density”. In order to calculate the relative density of gravel soil, the relative density property index of soil should be determined firstly, such as the maximum dry density and the minimum dry density. Because of the size and energy limitation of the laboratory test equipment, The maximum dry density of the gravel soils determined in laboratory tests is often much lower than the actual. For the Yulongkashi high earth-rock fill dam in China, the field large-scale relative density tests of original gravel soil was carried out used actual rolling equipment and large relative density bucket, the compaction characteristics of soil was studied, and the relative density characteristics index of soils with different gradation (coarse grain content) were determined. The test results showed that, compared with the general laboratory test results, the maximum dry density of gravel soil determined by field test was much larger; the minimum dry density as well as maximum dry density of gravel soil had the tendency of increasing and then decreasing with the increase of coarse grain content, and there was an optimum coarse grain content for the density of soil.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhengquan Yang
AU  - Yijie Xue
AU  - Long Wang
AU  - Xiaosheng Liu
AU  - Qiwang Liu
AU  - Jianming Zhao
PY  - 2018/09
DA  - 2018/09
TI  - Field large-scale relative density tests of gravel soil of Yulongkashi high earth-rock fill dam
BT  - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018)
PB  - Atlantis Press
SP  - 731
EP  - 735
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-18.2018.127
DO  - 10.2991/iceep-18.2018.127
ID  - Yang2018/09
ER  -