Quick Menu

Upcoming Journals
  • No Upcoming Journals

Journal of Geography, Environment and Earth Science International

Journal of Geography, Environment and Earth Science International, ISSN: 2454-7352,Vol.: 10, Issue.: 2

 

Case Study

 

A Case Study of Debris Flow Hazards in the Bayi Gully, Sichuan Province, China

 

 

Yu Ma1* and Cai-Xia Li1

1The Engineering and Technology of College, Chengdu University of Technology, Leshan, Sichuan, 614000, P.R. China.

 

Abstracts

 

Many debris flow hazards were triggered in Earthquake area after the Wenchuan Earthquake. On 13 Aug.2010,a catastrophic debris flows were triggered by heavy rainfall in Bayi Gully, Dujiangyan county, southwestern china. This debris flows originating shortly after a rainstorm with an intensity of 75 mm/h transported a total volume of more than 116.5×104 m3. Our primary objective for this study was to analyze the characteristics of the triggering rainfall and the debris supply conditions, and to estimate debris flow volume, mean velocity, and discharge. The debris flow destroyed the most downstream dam in the catchment during a heavy rain storm. The debris flow with a peak discharge of 1082 m3/s, a total volume of 1.16million cubic meter, a density of 1.88g·cm-3 and a yield stress of 6700 Pa caused 2 persons were missing, 1 persons were injured and 140 houses buried.After three rainy seasons, Only 30% sediment of debris deposition was taken away by 4 large-scale debris flow events. New debris flow will be triggered by rainfall in Bayi Gully in the future. It will be a long term work to prevent the debris flows in Bayi Gully.

 

Keywords :

Wenchuan earthquake; debris flow; formation; characteristics; prediction.

 

Full Article - PDF    Page 1-9    Article Metrics

 

DOI : 10.9734/JGEESI/2017/33092

Review History    Comments

Search this site

Advanced Search

Announcement & News

SCOPUS selected Annual Research & Review in Biology (ARRB)

We are delighted to inform that famous indexing organization SCOPUS (from Elsevier) selected  A...

Index Copernicus Evaluation Result Released

We are delighted to inform that Index Copernicus (a leading indexing organization from Pol...

Journal Repository (JR): Permanent Digital Archiving of SDI journals

SDI is happy to announce that all our journals are now permanently archived in Journal Repository (J...

Index Copernicus Value of British Journal of Medicine and Medical Research

  We are delighted to inform that Index Copernicus (a leading indexing organization ...

SDI journal got 35th ranking in Publons

We are delighted to announce (as of 04/01/2016) that British Journal of Medicine and Medical Re...

Growth of SDI and world publication market

As of 2014, total 25,064 journals are competing in World market of journal publication. In 2011, tot...

Publication and site statistics (up to Sept, 2015)

  Number of submission: 22181 (Total up to Sept, 2015) Number of published paper: 10949&n...

Index Medicus selected 15 SDI journals

We are delighted to inform that Index Medicus (IMSEAR) has selected following 15 SDI journals for in...

SCIENCEDOMAIN international received 5844 submissions in 2013

SCIENCEDOMAIN international is pleased to announce that it has received 5844 submissions in 2013, ac...

Science (IF: 31) report confirmed the high standard of SDI journal

As per a recent report (Link) of Science journal (present Impact factor 31), one of our journal (Bri...



SCIENCEDOMAIN Awards

  • No Awards listed.

Browser Compatibility : Mozila firefox, Google Crome and IE 7 & above. Creative Commons License Terms & Condition   |   Privacy Policy   |   Join Us   |   Help   |   Contact Us
© Copyright 2010-2017, SCIENCEDOMAIN international. All rights reserved.