Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake
Prevention and mitigation of rainfall induced geological hazards after the Ms=8 Wenchuan earthquake on May 12th, 2008 were significant for rebuild of earthquake hit regions. After the Wenchuan earthquake, there were tens of thousands of fractured slopes which were broken and loosened by the ground s...
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Penerbit Universiti Kebangsaan Malaysia
2017
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| Online Access: | http://journalarticle.ukm.my/11668/ http://journalarticle.ukm.my/11668/ http://journalarticle.ukm.my/11668/1/02%20SM46%2011.pdf |
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ukm-116682018-05-28T00:22:48Z http://journalarticle.ukm.my/11668/ Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake Yang, Zong-Ji Qiao, Jian-Ping Huang, Dong Uchimura, Taro Wang, Lin Prevention and mitigation of rainfall induced geological hazards after the Ms=8 Wenchuan earthquake on May 12th, 2008 were significant for rebuild of earthquake hit regions. After the Wenchuan earthquake, there were tens of thousands of fractured slopes which were broken and loosened by the ground shaking, they were very susceptible to heavy rainfall and change forms into potential debris flows. In order to carry out this disaster reduction and prediction effectively in Longmenshan region, careful real-time monitoring and pre-warning of mountain hazards in both regional and site-specific scales is reasonable as alternatives in Wenchuan earthquake regions. For pre-warning the failure of fractured slopes induced by rainfall, the threshold value or the critical value of the precipitation of hazards should be proposed. However, the identification of critical criterion and parameters to pre-warning is the most difficult issue in mountainous hazards monitoring and pre-warning system especially in the elusive and massive fractured slopes widespread in Wenchuan earthquake regions. In this study, a natural coseismic fractured landslide in the Taziping village, Hongkou County, Dujianyan City, was selected to conduct the field experimental test, in order to identify the threshold parameters and critical criterion of the fractured slopes of Taziping. After the field experimental test, the correlation of rainfall intensity, rainfall duration and accumulative rainfall was investigated. The field experimental test was capable of identifying the threshold factors for failure of rainfall-induced fractured slopes after the giant earthquake. Penerbit Universiti Kebangsaan Malaysia 2017-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11668/1/02%20SM46%2011.pdf Yang, Zong-Ji and Qiao, Jian-Ping and Huang, Dong and Uchimura, Taro and Wang, Lin (2017) Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake. Sains Malaysiana, 46 (11). pp. 2029-2034. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol46num11_2017/contentsVol46num11_2017.htm |
| repository_type |
Digital Repository |
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Local University |
| institution |
Universiti Kebangasaan Malaysia |
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UKM Institutional Repository |
| collection |
Online Access |
| language |
English |
| description |
Prevention and mitigation of rainfall induced geological hazards after the Ms=8 Wenchuan earthquake on May 12th, 2008 were significant for rebuild of earthquake hit regions. After the Wenchuan earthquake, there were tens of thousands of fractured slopes which were broken and loosened by the ground shaking, they were very susceptible to heavy rainfall and change forms into potential debris flows. In order to carry out this disaster reduction and prediction effectively in Longmenshan region, careful real-time monitoring and pre-warning of mountain hazards in both regional and site-specific scales is reasonable as alternatives in Wenchuan earthquake regions. For pre-warning the failure of fractured slopes induced by rainfall, the threshold value or the critical value of the precipitation of hazards should be proposed. However, the identification of critical criterion and parameters to pre-warning is the most difficult issue in mountainous hazards monitoring and pre-warning system especially in the elusive and massive fractured slopes widespread in Wenchuan earthquake regions. In this study, a natural coseismic fractured landslide in the Taziping village, Hongkou County, Dujianyan City, was selected to conduct the field experimental test, in order to identify the threshold parameters and critical criterion of the fractured slopes of Taziping. After the field experimental test, the correlation of rainfall intensity, rainfall duration and accumulative rainfall was investigated. The field experimental test was capable of identifying the threshold factors for failure of rainfall-induced fractured slopes after the giant earthquake. |
| format |
Article |
| author |
Yang, Zong-Ji Qiao, Jian-Ping Huang, Dong Uchimura, Taro Wang, Lin |
| spellingShingle |
Yang, Zong-Ji Qiao, Jian-Ping Huang, Dong Uchimura, Taro Wang, Lin Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake |
| author_facet |
Yang, Zong-Ji Qiao, Jian-Ping Huang, Dong Uchimura, Taro Wang, Lin |
| author_sort |
Yang, Zong-Ji |
| title |
Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake |
| title_short |
Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake |
| title_full |
Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake |
| title_fullStr |
Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake |
| title_full_unstemmed |
Experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake |
| title_sort |
experimental identification on thresholds for early warning of rainfall-induced failure on fractured slopes after giant earthquake |
| publisher |
Penerbit Universiti Kebangsaan Malaysia |
| publishDate |
2017 |
| url |
http://journalarticle.ukm.my/11668/ http://journalarticle.ukm.my/11668/ http://journalarticle.ukm.my/11668/1/02%20SM46%2011.pdf |
| first_indexed |
2023-09-18T20:00:52Z |
| last_indexed |
2023-09-18T20:00:52Z |
| _version_ |
1777406839109976064 |