Failure processes of the vertical drop structures in weak bedrock channel

Ming Wan Huang, Jyh-Jong Liao, Yii-Wen Pan, Meng Hsiung Cheng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Vertical drop structures (weir, grade control, check dams) are often adopted for engineering approach to intake water or to deal with channel degradation problems in Taiwan. This study presents five failure cases of vertical drop structures in weak bedrock channel. Three types of failure processes of the drop structures were concluded according to the results of field investigation and aerial-photograph observation. These processes include (1) local scour in channel bed and bank toe downstream the vertical drop structure; (2) scour at structure edges of the transition interface between artificial material and natural bedrock; (3) damage of concrete pavement by impact of large boulders.

Original languageEnglish
Title of host publicationProceedings of the 23rd International Offshore and Polar Engineering Conference, ISOPE 2013
Pages716-721
Number of pages6
StatePublished - 16 Sep 2013
Event23rd International Offshore and Polar Engineering Conference, ISOPE 2013 - Anchorage, AK, United States
Duration: 30 Jun 20135 Jul 2013

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference23rd International Offshore and Polar Engineering Conference, ISOPE 2013
CountryUnited States
CityAnchorage, AK
Period30/06/135/07/13

Keywords

  • Erosion
  • Failure processes
  • Vertical drop structure
  • Weak bedrock

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