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Groundwater control and curtain grouting for tunnel construction in completely weathered granite
Liu, Jinquan1,2; Chen, Weizhong1,3; Yuan, Jingqiang1; Li, Changjun1,2; Zhang, Qingyan1,2; Li, Xiaofei1,2
2018
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
Volume77Issue:2Pages:515-531
AbstractDuring 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.
KeywordCurtain grouting thickness Seepage-erosion Water inrush model Completely weathered granite
DOI10.1007/s10064-017-1003-x
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000431300600004
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/4267
Collection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
Affiliation1.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
First Author AffilicationInstitute of Rock and Soil Mechanics, chinese Academy of sciences
Recommended Citation
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.
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