Groundwater control and curtain grouting for tunnel construction in completely weathered granite

doi:10.1007/s10064-017-1003-x

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Groundwater control and curtain grouting for tunnel construction in completely weathered granite
	Liu, Jinquan 1,2; Chen, Weizhong 1,3; Yuan, Jingqiang 1; Li, Changjun 1,2; Zhang, Qingyan 1,2; Li, Xiaofei 1,2
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2018
卷号	77 期号:2 页码:515-531
关键词	Curtain grouting thickness Seepage-erosion Water inrush model Completely weathered granite
ISSN号	1435-9529
DOI	10.1007/s10064-017-1003-x
英文摘要	During tunnel construction, groundwater inrush from completely weathered granite strata is a significant challenge to geotechnical engineers. Up to the present, prevention of water inrushing hazards is almost exclusively based on the experience of engineers. This paper presents a coupled seepage-erosion water inrush model to investigate the characteristics of seepage-erosion properties. The proposed model is based on classical theories of solute transport and fluid dynamics in porous media. In the model, changes of porosity link permeability with the accumulation of particle loss in the seepage-erosion process. The coupled seepage-erosion model was applied to examine the influence of curtain grouting thickness on the seepage-erosion process. The results showed that the seepage-erosion process was attenuated as thickness increased. The results also showed that the porosity and permeability visibly changed and the water inflow clearly exceeded the acceptable engineering criterion when the thickness was less than 6 m. However, with a further increase in thickness, the seepage-erosion process was suppressed and little changes of the relative parameters were showed. The numerical results demonstrated that a curtain grouting thickness of 6 m was suitable for curtain grouting in completely weathered granite. Field investigation of Cenxi tunnel verified the effectiveness of the thickness determined by the proposed model.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000431300600004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4267]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Univ Chinese Acad Sci ; 3.Shandong Univ, Geotech & Struct Engn Res Ctr
推荐引用方式 GB/T 7714	Liu, Jinquan,Chen, Weizhong,Yuan, Jingqiang,et al. Groundwater control and curtain grouting for tunnel construction in completely weathered granite[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2018,77(2):515-531.
APA	Liu, Jinquan,Chen, Weizhong,Yuan, Jingqiang,Li, Changjun,Zhang, Qingyan,&Li, Xiaofei.(2018).Groundwater control and curtain grouting for tunnel construction in completely weathered granite.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,77(2),515-531.
MLA	Liu, Jinquan,et al."Groundwater control and curtain grouting for tunnel construction in completely weathered granite".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 77.2(2018):515-531.