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Article: Rockfall Hazard Analysis for Hong Kong Based on Rockfall Inventory

TitleRockfall Hazard Analysis for Hong Kong Based on Rockfall Inventory
Authors
KeywordsHazard analysis
Hazard map
Hong Kong
Rockfall
Rockfall inventory
Issue Date2003
PublisherSpringer-Verlag Wien. The Journal's web site is located at http://www.springer.at/rock_mechanics
Citation
Rock Mechanics And Rock Engineering, 2003, v. 36 n. 5, p. 383-408 How to Cite?
AbstractThis paper compiles and analyzes the rockfall data in Hong Kong in the last fifty years. A simple rockfall hazard analysis is presented based on this rockfall inventory. A frequency-magnitude relation, which is analogous to the Gutenberg-Richter relation for earthquake occurrence, is proposed for rockfall, and direct correlation between rockfall frequency and the daily rainfall is observed. Data analysis shows that a threshold daily rainfall of about 150-200 mm is expected in order to trigger rockfall events in Hong Kong. Among the 368 rockfall events in the 13 year period from 1984 to 1996 in Hong Kong, 35% of the incidents lead to blockage of or damage to roads, 22% lead to damages or evacuation of squatter huts, 21% lead to blockage of pedestrian pavement and footpath, and 15% affect buildings, such as housing apartments and schools. Only 15% of these rockfalls fell onto open space and caused negligible effects on human activities. Most of these rockfall events occurred during heavy rain and when "landslide warning" should has been issued by the Hong Kong Observatory, thus only 6% of these events led to injury or casualty, car damages, and damages to public utilities. Rockfall hazard zonation maps in terms of the spatial distribution of previous rockfalls are proposed for both Kowloon Peninsula and Hong Kong Island.
Persistent Identifierhttp://hdl.handle.net/10722/71747
ISSN
2015 Impact Factor: 2.386
2015 SCImago Journal Rankings: 1.939
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChau, KTen_HK
dc.contributor.authorWong, RHCen_HK
dc.contributor.authorLiu, Jen_HK
dc.contributor.authorLee, CFen_HK
dc.date.accessioned2010-09-06T06:34:48Z-
dc.date.available2010-09-06T06:34:48Z-
dc.date.issued2003en_HK
dc.identifier.citationRock Mechanics And Rock Engineering, 2003, v. 36 n. 5, p. 383-408en_HK
dc.identifier.issn0723-2632en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71747-
dc.description.abstractThis paper compiles and analyzes the rockfall data in Hong Kong in the last fifty years. A simple rockfall hazard analysis is presented based on this rockfall inventory. A frequency-magnitude relation, which is analogous to the Gutenberg-Richter relation for earthquake occurrence, is proposed for rockfall, and direct correlation between rockfall frequency and the daily rainfall is observed. Data analysis shows that a threshold daily rainfall of about 150-200 mm is expected in order to trigger rockfall events in Hong Kong. Among the 368 rockfall events in the 13 year period from 1984 to 1996 in Hong Kong, 35% of the incidents lead to blockage of or damage to roads, 22% lead to damages or evacuation of squatter huts, 21% lead to blockage of pedestrian pavement and footpath, and 15% affect buildings, such as housing apartments and schools. Only 15% of these rockfalls fell onto open space and caused negligible effects on human activities. Most of these rockfall events occurred during heavy rain and when "landslide warning" should has been issued by the Hong Kong Observatory, thus only 6% of these events led to injury or casualty, car damages, and damages to public utilities. Rockfall hazard zonation maps in terms of the spatial distribution of previous rockfalls are proposed for both Kowloon Peninsula and Hong Kong Island.en_HK
dc.languageengen_HK
dc.publisherSpringer-Verlag Wien. The Journal's web site is located at http://www.springer.at/rock_mechanicsen_HK
dc.relation.ispartofRock Mechanics and Rock Engineeringen_HK
dc.subjectHazard analysisen_HK
dc.subjectHazard mapen_HK
dc.subjectHong Kongen_HK
dc.subjectRockfallen_HK
dc.subjectRockfall inventoryen_HK
dc.titleRockfall Hazard Analysis for Hong Kong Based on Rockfall Inventoryen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0723-2632&volume=36&issue=5&spage=383&epage=408&date=2003&atitle=Rockfall+hazard+analysis+for+Hong+Kong+based+on+rockfall+inventoryen_HK
dc.identifier.emailLee, CF: leecf@hkucc.hku.hken_HK
dc.identifier.authorityLee, CF=rp00139en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00603-002-0035-zen_HK
dc.identifier.scopuseid_2-s2.0-0346896459en_HK
dc.identifier.hkuros93235en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0346896459&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume36en_HK
dc.identifier.issue5en_HK
dc.identifier.spage383en_HK
dc.identifier.epage408en_HK
dc.identifier.isiWOS:000186831400003-
dc.publisher.placeAustriaen_HK
dc.identifier.scopusauthoridChau, KT=7202674661en_HK
dc.identifier.scopusauthoridWong, RHC=7402126811en_HK
dc.identifier.scopusauthoridLiu, J=7410109882en_HK
dc.identifier.scopusauthoridLee, CF=8068602600en_HK

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