Analysis of Collapsibility of Loess and Correlation Between its Indexes

DOI

10.2991/978-94-6463-449-5_18How to use a DOI?

Keywords

Collapsible loess; correlation; collapsibility coefficient; physical property index; hydraulic property index; mechanical property index regression analysis

Abstract

The Guanzhong Plain city group is located in the centre of inland China, which is an important fulcrum of the Asia-Europe Continental Bridge, and also the second largest urban agglomeration in the western region of China. However, the large thickness collapsible loess has always been a pain point in the process of urban development. In this paper, for the problem of collapsible loess in Guanzhong area, five typical geomorphological units in Xi’an, Xianyang, Tongchuan and Sanmenxia are targeted for sampling. Through a large number of indoor and outdoor experiments, the relevant data of physical properties, hydrophysical properties, mechanical properties, collapsible index of collapsible loess and the distribution pattern of each index in the study area are analysed. By analyzing the correlation among the indexes, four indexes which are closely related to the collapsibility of loess are obtained: natural density, void ratio, dry density and saturation, and the regression analysis of these four indexes and the collapsibility coefficient is carried out respectively. This finding provides a reference for a more in-depth study of the characteristics of collapsible loess in Guanzhong area, and can optimise the engineering investigation process in urban construction, which is very important for the urban construction in this area.

Copyright

© 2024 The Author(s)

Open Access

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TY  - CONF
AU  - Hongxiang Yan
AU  - Jianxun Ma
AU  - Jianhui Niu
AU  - Zhixun Xie
AU  - Qize Wang
AU  - Wuwei Zhu
AU  - Xiao Yang
PY  - 2024
DA  - 2024/06/30
TI  - Analysis of Collapsibility of Loess and Correlation Between its Indexes
BT  - Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
PB  - Atlantis Press
SP  - 181
EP  - 188
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-449-5_18
DO  - 10.2991/978-94-6463-449-5_18
ID  - Yan2024
ER  -