Grout diffusion in silty fine sand stratum with high groundwater level for tunnel construction

doi:10.1016/j.tust.2019.103051

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院页岩气与地质工程重点实验室

	Grout diffusion in silty fine sand stratum with high groundwater level for tunnel construction
	Liu, Xiaoli 1; Wang, Fang 1; Huang, Jin 1; Wang, Sijing 1,2; Zhang, Zhizeng 3; Nawnit, Kumar 1
刊名	TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
	2019-11-01
卷号	93 页码:11
关键词	Silty fine sand stratum with high water level Bingham fluid Grouting pressure Grout diffusion radius Discrete element method
ISSN号	0886-7798
DOI	10.1016/j.tust.2019.103051
英文摘要	Silty fine sand stratum with a high water groundwater level is a common soil type with poor strength. During tunnel construction and foundation pit excavation, geologic hazards such as water leakage and ground subsidence are very likely if safety preparations are lacking. In this study, we conducted a theoretical analysis of the grouting process in silty fine stratum using a sleeve valve tube; the diffusion behavior of the grout with Bingham fluid characteristics was determined and simulated for different levels of pressure using the discrete element method. Theoretical analysis and numerical calculations were performed to determine the relationships between the grouting pressure, the diffusion radius, and the initial fracture pressure. A good agreement is obtained between the simulation and measured results, demonstrating the feasibility of the proposed theoretical model. The method is used in an actual grouting engineering project and good results are obtained.
资助项目	National Key Research and Development Plan[2016YFC0501104] ; National Natural Science Foundation of China[51522903] ; National Natural Science Foundation of China[41772246]
WOS关键词	UNIAXIAL COMPRESSIVE STRENGTH ; PREDICTION ; PERMEABILITY ; COLUMNS ; ASH
WOS研究方向	Construction & Building Technology ; Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000488140500001
资助机构	National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Plan ; National Key Research and Development Plan ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93707]
专题	地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者	Liu, Xiaoli
作者单位	1.Tsinghua Univ, State Key Lab Hydrosci & Hydraul Engn, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 3.Zhongyuan Univ Technol, Coll Civil Engn & Architecture, Zhengzhou, Henan, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xiaoli,Wang, Fang,Huang, Jin,et al. Grout diffusion in silty fine sand stratum with high groundwater level for tunnel construction[J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,2019,93:11.
APA	Liu, Xiaoli,Wang, Fang,Huang, Jin,Wang, Sijing,Zhang, Zhizeng,&Nawnit, Kumar.(2019).Grout diffusion in silty fine sand stratum with high groundwater level for tunnel construction.TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY,93,11.
MLA	Liu, Xiaoli,et al."Grout diffusion in silty fine sand stratum with high groundwater level for tunnel construction".TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 93(2019):11.