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postgraduate thesis: Evaluation of the performance of the Po Shan drainage tunnels

TitleEvaluation of the performance of the Po Shan drainage tunnels
Authors
Issue Date2017
PublisherThe University of Hong Kong (Pokfulam, Hong Kong)
Citation
Lam, H. [林曉烽]. (2017). Evaluation of the performance of the Po Shan drainage tunnels. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR.
AbstractPo Shan Drainage Tunnels adapted a new drainage system technology in Hong Kong as well as in the other parts of the world which consists of underground drainage tunnels and sub-vertical drains. This dissertation studies the performance of the Po Shan drainage system and evaluates the effectiveness of drainage tunnel in groundwater control in slope. From the data analysis, it is concluded that the drainage system could effectively control the groundwater level by opening the mechanical valves in the sub-vertical drains. The hydrogeological condition observed in Po Shan area was also studied. From the piezometric readings, it is showed that significant different groundwater levels were observed from two piezometers installed at different depths in the same boreholes. The reasons as well as the implications of the phenomenon were discussed. It is concluded that the hydraulic gradient in the study area and other slopes in Hong Kong could be high and the piezometric levels should be corrected for non-hydrostatic condition especially in sloping ground.
DegreeMaster of Science
SubjectHong Kong - Tunneling - China
Dept/ProgramApplied Geosciences
Persistent Identifierhttp://hdl.handle.net/10722/252053

 

DC FieldValueLanguage
dc.contributor.authorLam, Hiu-fung-
dc.contributor.author林曉烽-
dc.date.accessioned2018-04-09T14:36:57Z-
dc.date.available2018-04-09T14:36:57Z-
dc.date.issued2017-
dc.identifier.citationLam, H. [林曉烽]. (2017). Evaluation of the performance of the Po Shan drainage tunnels. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR.-
dc.identifier.urihttp://hdl.handle.net/10722/252053-
dc.description.abstractPo Shan Drainage Tunnels adapted a new drainage system technology in Hong Kong as well as in the other parts of the world which consists of underground drainage tunnels and sub-vertical drains. This dissertation studies the performance of the Po Shan drainage system and evaluates the effectiveness of drainage tunnel in groundwater control in slope. From the data analysis, it is concluded that the drainage system could effectively control the groundwater level by opening the mechanical valves in the sub-vertical drains. The hydrogeological condition observed in Po Shan area was also studied. From the piezometric readings, it is showed that significant different groundwater levels were observed from two piezometers installed at different depths in the same boreholes. The reasons as well as the implications of the phenomenon were discussed. It is concluded that the hydraulic gradient in the study area and other slopes in Hong Kong could be high and the piezometric levels should be corrected for non-hydrostatic condition especially in sloping ground. -
dc.languageeng-
dc.publisherThe University of Hong Kong (Pokfulam, Hong Kong)-
dc.relation.ispartofHKU Theses Online (HKUTO)-
dc.rightsThe author retains all proprietary rights, (such as patent rights) and the right to use in future works.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subject.lcshHong Kong - Tunneling - China-
dc.titleEvaluation of the performance of the Po Shan drainage tunnels-
dc.typePG_Thesis-
dc.description.thesisnameMaster of Science-
dc.description.thesislevelMaster-
dc.description.thesisdisciplineApplied Geosciences-
dc.description.naturepublished_or_final_version-
dc.date.hkucongregation2017-
dc.identifier.mmsid991043996466303414-

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