The influence range of the biogas desaturation method for mitigating sand liquefaction

Erxing Peng; Erxing Peng; Dandan Li; Xiaoying Hu; Binbin He; Binbin He; Haiming Dang; Youqian Liu

doi:10.3389/feart.2024.1433507

Frontiers in Earth Science (Jul 2024)

The influence range of the biogas desaturation method for mitigating sand liquefaction

Erxing Peng,
Erxing Peng,
Dandan Li,
Xiaoying Hu,
Binbin He,
Binbin He,
Haiming Dang,
Youqian Liu

Affiliations

Erxing Peng: State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University, Nanchang, Jiangxi, China
Erxing Peng: Key Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu, China
Dandan Li: School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu, China
Xiaoying Hu: School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu, China
Binbin He: State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University, Nanchang, Jiangxi, China
Binbin He: School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang, Jiangxi, China
Haiming Dang: China Railway Qinghai-Tibet Group Co., Ltd, Chengdong, China
Youqian Liu: China Railway Qinghai-Tibet Group Co., Ltd, Chengdong, China

DOI: https://doi.org/10.3389/feart.2024.1433507
Journal volume & issue: Vol. 12

Abstract

Read online

To clarify the influence range and saturation distribution after the biogas desaturation method is applied, a three-dimensional model is established with TOUGH2 software to analyze the effect of construction parameters such as grouting volume, grouting rate, grouting depth, nitrogen source concentration, and soil porosity. After that, the sensitivity of the parameters on the influence range is determined. The grouting volume and soil porosity are the most sensitive to the lateral and vertical influence range, respectively. This study provides a basis for the engineering practice of treating liquefiable subgrade by the biogas desaturation method.

Published in Frontiers in Earth Science

ISSN: 2296-6463 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science
Website: https://www.frontiersin.org/journals/earth-science

About the journal

Abstract

Keywords