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Article: Preliminary assessment of the impacts of deep foundations and land reclamation on groundwater flow in a coastal area in Hong Kong, China

TitlePreliminary assessment of the impacts of deep foundations and land reclamation on groundwater flow in a coastal area in Hong Kong, China
Authors
Issue Date2006
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/10040/index.htm
Citation
Hydrogeology Journal, 2006, v. 14 n. 1-2, p. 100-114 How to Cite?
AbstractMany coastal areas have been intensively urbanized because people living and working on or near coastlines are increasing. Land reclamation from the sea and high-rise buildings are common approaches to satisfying the growing needs for more housing and other land use. Coastal areas are usually the ultimate discharge zones of groundwater systems. Using a coastal area in Hong Kong as a case study, this paper discusses the change in a groundwater system due to land reclamation and construction of building foundations in a coastal area. The upper part of the study area is in a nearly natural state, whereas the lower part is probably one of the most extensively developed areas in the world. It is evident that the groundwater flow system in this area has been changed over the last century. The piezometers in the transitional zone between the natural slopes and the urbanized areas indicate significant response to rainfall and obvious upward groundwater flow. To understand these piezometric responses to rainfall, a cross section is selected for detailed study using a two-dimensional multilayered numerical model. The parameters and structure of the aquifer system are calibrated by comparing the simulated and observed water levels. To reproduce the observed behavior of the groundwater system, the model has to include two important characteristics: a highly permeable zone at the rockhead and a reduction in hydraulic conductivity of 14-20 times in the urbanized area. The simulation demonstrates that both land reclamation along the coastline and deep foundations have contributed to the modification of the flow system, but the deep foundations have the most profound impact, especially when a high conductivity zone is present at the rockhead. © Springer-Verlag 2004.
Persistent Identifierhttp://hdl.handle.net/10722/72494
ISSN
2015 Impact Factor: 2.028
2015 SCImago Journal Rankings: 1.049
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorJiao, JJen_HK
dc.contributor.authorWang, XSen_HK
dc.contributor.authorNandy, Sen_HK
dc.date.accessioned2010-09-06T06:42:22Z-
dc.date.available2010-09-06T06:42:22Z-
dc.date.issued2006en_HK
dc.identifier.citationHydrogeology Journal, 2006, v. 14 n. 1-2, p. 100-114en_HK
dc.identifier.issn1431-2174en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72494-
dc.description.abstractMany coastal areas have been intensively urbanized because people living and working on or near coastlines are increasing. Land reclamation from the sea and high-rise buildings are common approaches to satisfying the growing needs for more housing and other land use. Coastal areas are usually the ultimate discharge zones of groundwater systems. Using a coastal area in Hong Kong as a case study, this paper discusses the change in a groundwater system due to land reclamation and construction of building foundations in a coastal area. The upper part of the study area is in a nearly natural state, whereas the lower part is probably one of the most extensively developed areas in the world. It is evident that the groundwater flow system in this area has been changed over the last century. The piezometers in the transitional zone between the natural slopes and the urbanized areas indicate significant response to rainfall and obvious upward groundwater flow. To understand these piezometric responses to rainfall, a cross section is selected for detailed study using a two-dimensional multilayered numerical model. The parameters and structure of the aquifer system are calibrated by comparing the simulated and observed water levels. To reproduce the observed behavior of the groundwater system, the model has to include two important characteristics: a highly permeable zone at the rockhead and a reduction in hydraulic conductivity of 14-20 times in the urbanized area. The simulation demonstrates that both land reclamation along the coastline and deep foundations have contributed to the modification of the flow system, but the deep foundations have the most profound impact, especially when a high conductivity zone is present at the rockhead. © Springer-Verlag 2004.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/10040/index.htmen_HK
dc.relation.ispartofHydrogeology Journalen_HK
dc.titlePreliminary assessment of the impacts of deep foundations and land reclamation on groundwater flow in a coastal area in Hong Kong, Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1431-2174&volume=14&issue=1-2&spage=100&epage=114&date=2006&atitle=Preliminary+assessment+of+the+impacts+of+deep+foundations+and+land+reclamation+on+groundwater+flow+in+a+coastal+area+in+Hong+Kong,+Chinaen_HK
dc.identifier.emailJiao, JJ:jjiao@hku.hken_HK
dc.identifier.authorityJiao, JJ=rp00712en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s10040-004-0393-6en_HK
dc.identifier.scopuseid_2-s2.0-31144439691en_HK
dc.identifier.hkuros120805en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-31144439691&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume14en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage100en_HK
dc.identifier.epage114en_HK
dc.identifier.isiWOS:000234209500009-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridJiao, JJ=7102382963en_HK
dc.identifier.scopusauthoridWang, XS=8118576100en_HK
dc.identifier.scopusauthoridNandy, S=36831918300en_HK

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