Long-term sustainability of biogas bubbles in sand

doi:10.1038/s41598-020-69324-0

IR > 土木工程学院

	Long-term sustainability of biogas bubbles in sand
	Hu, Xiaoying 1; Li, Dandan 1; Peng, Erxing 2; Hou, Zheng 1; Sheng, Yu 2; Chou, Yaling1
	2020-07-29
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	10 期号:1
摘要	Desaturation is a new method to mitigate liquefaction of sand. It aims to prevent liquefaction by generating gas/air in the pores of fully saturated sands, and biogas is one of the most suitable gas. In order to evaluate the long-term sustainability of biogas bubbles, a series sustainability test on biogas bubbles in pores of sand was conducted with a one-dimensional device under hydrostatic condition, hydraulic gradient flow condition and horizontal excitation condition. The variation trend of the retention of biogas bubbles in the pores of soil under the aforementioned conditions was analyzed. Test results indicated that after 72 weeks of monitoring sand samples, biogas bubbles existed stably in the pores of soil under hydrostatic conditions. In hydraulic gradient flow, the stability under upward seepage flow showed a similar trend to that of downward seepage flow. When the hydraulic gradient was constant, the degree of saturation increased in a certain period and finally remained constant. When the hydraulic gradient increased by 0.1, 0.2, 0.3, 0.4, and 0.5, the degrees of saturation increase were 0.8%, 11.5%, 0.5%, 0.1%, and 0%, respectively. After 41,200 cycles with different accelerations, the degree of saturation of the sample increased slightly, and the biogas bubbles basically remained stable.
DOI	10.1038/s41598-020-69324-0
收录类别	SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000556384600025
出版者	NATURE PUBLISHING GROUP
来源库	WOS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/155141
专题	土木工程学院
通讯作者	Peng, Erxing
作者单位	1.Lanzhou Univ Technol, Lanzhou 730050, Gansu, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Hu, Xiaoying,Li, Dandan,Peng, Erxing,et al. Long-term sustainability of biogas bubbles in sand[J]. SCIENTIFIC REPORTS,2020,10(1).
APA	Hu, Xiaoying,Li, Dandan,Peng, Erxing,Hou, Zheng,Sheng, Yu,&Chou, Yaling.(2020).Long-term sustainability of biogas bubbles in sand.SCIENTIFIC REPORTS,10(1).
MLA	Hu, Xiaoying,et al."Long-term sustainability of biogas bubbles in sand".SCIENTIFIC REPORTS 10.1(2020).