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Article: Hydro-splitting off analysis on underground water in deep-lying tunnels and its effect on water gushing out

TitleHydro-splitting off analysis on underground water in deep-lying tunnels and its effect on water gushing out
Authors
Issue Date2000
Citation
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2000, v. 19 n. 5, p. 573-576 How to Cite?
AbstractThe mechanism of water gushing in jointed surrounding rocks of deep-lying tunnels is studied. The results show that a hydro-splitting course under high water pressure is involved just before water gushing out, which can be described by a fracture model with a joint and type II failure. According to the criterion of fracture instability, a formula of critical water pressure resulting in hydro-splitting is derived. Also, the spacing variation of a joint under high pore water pressure during water gushing is especially regarded. An equation is put forward to describe the joint spacing variation (Δb) based on the deformation of joint walls. As an example, the case of Jinping deep-lying tunnel is discussed. It gives a reasonable explanation to the high pressure water gushing encountered in this project.
Persistent Identifierhttp://hdl.handle.net/10722/151041
ISSN
2015 SCImago Journal Rankings: 1.073

 

DC FieldValueLanguage
dc.contributor.authorHuang, Runqiuen_US
dc.contributor.authorWang, Xiannengen_US
dc.contributor.authorChen, Longsengen_US
dc.date.accessioned2012-06-26T06:16:26Z-
dc.date.available2012-06-26T06:16:26Z-
dc.date.issued2000en_US
dc.identifier.citationYanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2000, v. 19 n. 5, p. 573-576en_US
dc.identifier.issn1000-6915en_US
dc.identifier.urihttp://hdl.handle.net/10722/151041-
dc.description.abstractThe mechanism of water gushing in jointed surrounding rocks of deep-lying tunnels is studied. The results show that a hydro-splitting course under high water pressure is involved just before water gushing out, which can be described by a fracture model with a joint and type II failure. According to the criterion of fracture instability, a formula of critical water pressure resulting in hydro-splitting is derived. Also, the spacing variation of a joint under high pore water pressure during water gushing is especially regarded. An equation is put forward to describe the joint spacing variation (Δb) based on the deformation of joint walls. As an example, the case of Jinping deep-lying tunnel is discussed. It gives a reasonable explanation to the high pressure water gushing encountered in this project.en_US
dc.languageengen_US
dc.relation.ispartofYanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineeringen_US
dc.titleHydro-splitting off analysis on underground water in deep-lying tunnels and its effect on water gushing outen_US
dc.typeArticleen_US
dc.identifier.emailChen, Longseng:chanls@hku.hken_US
dc.identifier.authorityChen, Longseng=rp00665en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0034273466en_US
dc.identifier.hkuros64634-
dc.identifier.volume19en_US
dc.identifier.issue5en_US
dc.identifier.spage573en_US
dc.identifier.epage576en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridHuang, Runqiu=7402950523en_US
dc.identifier.scopusauthoridWang, Xianneng=7501854128en_US
dc.identifier.scopusauthoridChen, Longseng=7403540528en_US

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