Numerical Simulation Analysis of Loess Slope Stability under the action of Power Tower foundations

Yongsheng Ju; Yanjun Feng; Zhe Cao

doi:10.54097/1w4qcr07

Authors

Yongsheng Ju
Yanjun Feng
Zhe Cao

DOI:

https://doi.org/10.54097/1w4qcr07

Keywords:

Tower Base, Stability of Loess Slope, Rainfall, Layout Location

Abstract

Electric energy is the national key energy, and the safety construction of power tower is very important. In this paper, the influence of power tower foundation layout on slope stability in loess slope area is studied. Qingyangning County, Gansu Province is selected as the target area. Based on climate and rainfall data, numerical simulation method is adopted. Firstly, the study area is determined and the data are collected. Then, AUTO CAD and FLAC3 D are used to simulate the slope stability under different rainfall conditions and analyze the influence of rainfall. Then, several tower foundation layout schemes are determined, focusing on the influence of tower foundation on slope settlement under heavy rainstorm conditions, and calculating the slope safety factor and settlement of different schemes. Finally, the optimal tower foundation layout scheme is obtained, which provides reference for designers. This study is of great significance to the safety construction of power tower and the improvement of loess slope stability.

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References

[1] Chen Xiaohui. How to do a good job in the quality control of subgrade construction in collapsible loess area [J]. Technology horizon, 2017, ( 09 ) : 225.

[2] Wang Changru. Floristic study on Asteraceae plants in Loess Plateau [D]. Northwest University of Agriculture and Forestry, 2007.

[3] Party on the voyage. Study on stability evaluation and protective measures of sand loess tower foundation slope [D]. Chang 'an University, 2019.

[4] Sun Ping. Water sensitivity of loess and prediction of rainfall-induced shallow loess landslides [D]. Northwest University, 2020.

[5] Lu Yaqi, Jiao Meiling, Cao Yanchao. Climatic characteristics of the Loess Plateau in Qingyang, Gansu Province in the past 35 years [J]. China Agricultural Bulletin, 2015,31 (29) : 181-190.

[6] Li Wen. Study on the influence of water content on the shear strength of loess slope in Gansu [D]. Chang 'an University, 2010.

[7] Keyao. Study on the influence of oil pipeline layout on the stability of loess slope [D]. Lanzhou Jiaotong University, 2022.

[8] Zhang Mao, Li Tonglu. Study on the inducing factors and formation mechanism of loess landslide [J]. Journal of Engineering Geology, 2011,19 (04) : 530-540.

[9] Wang Xiaoran. Study on the evolution law of loess slope on the north bank of Jinghe River in Pingliang City [D]. Lanzhou University, 2017.

[10] Li Yanwu. Study on disease analysis and prevention countermeasures of highway subgrade in loess area [D]. Chang 'an University, 2001.

[11] Zeng Lei. Study on hydrological effect and stability of loess slope during seasonal freezing-thawing process [ D ].Chang 'an University, 2018.