Case Study: Stream Channel Stability Infrastructure at Bridge Crossings (Engineering Sciences)

2011 ◽  
pp. 221-239
Author(s):  
Rainer Brüggemann ◽  
Ganapati P. Patil
Keyword(s):  
Stream Channel ◽  
Channel Stability ◽  
Engineering Sciences

Case Study: Channel Stability of the Missouri River, Eastern Montana

2002 ◽  
Vol 128 (10) ◽  
pp. 880-890 ◽  
Author(s):  
Andrew Simon ◽  
Robert E. Thomas ◽  
Andrea Curini ◽  
F. Douglas Shields
Keyword(s):  
Missouri River ◽  
Channel Stability

Stream Dynamics at Pipeline River Crossings

1996 ◽  
Author(s):  
Gary R. E. Beckstead ◽  
Drum S. Cavers
Keyword(s):  
Case Studies ◽  
Dynamic Environments ◽  
Alluvial Fans ◽  
Stream Channel ◽  
Site Specific ◽  
Meandering Streams ◽  
Historical Aerial Photography ◽  
Final Design ◽  
Beaver Dams

Pipeline crossings of streams, whether large or small, must consider the ability of the stream channel to scour its bed and erode its banks. Case studies are presented to illustrate the kinds of dynamic environments which must be considered in designing pipeline stream crossings. These characteristics may be determined through the use of comparative historical aerial photography and site photographs and surveys. The case studies presented as examples in this paper include gullies, bedrock-lined channels, entrenched meandering streams, multi-channel wandering streams, degrading channels, alluvial fans, and major channels affected by regulation and man-made structures. Natural hazards such as debris jams and beaver dams are also discussed. For each case study, the characteristics of the channels are described, the design approach discussed and site-specific constraints presented which affected the final design.

Assessing learning outcomes in electrical engineering education: A case study from Saudi Arabia

2014 ◽  
Vol 51 (4) ◽  
pp. 354-367 ◽  
Author(s):  
Mohamed El-Kady ◽  
Abdullah Alsadaawi ◽  
Saeed Al-Zahrani ◽  
Abdelhamid Ajbar
Keyword(s):  
Saudi Arabia ◽  
Engineering Education ◽  
Learning Outcomes ◽  
Electrical Engineering ◽  
Engineering Practice ◽  
Exit Exam ◽  
Engineering Sciences ◽  
Electrical Engineering Education ◽  
Education Authority

This paper presents the main features of a study carried out by the higher education authority in the Kingdom of Saudi Arabia for developing a practical framework for formulating and assessing learning outcomes in electrical engineering education. The proposed learning outcomes were based on a compilation of different international accreditation frameworks. The formulated learning outcomes were grouped into four learning areas: (1) engineering sciences, (2) engineering analysis and investigation, (3) engineering design and (4) engineering practice. The paper also presents the main elements of a proposed standardized exit exam to test the developed learning outcomes. A table of specification was constructed that maps the developed learning outcomes with the test questions distributed over various learning levels. It allows the transformation of the developed learning outcomes into balanced questions to be used in an exit exam. The paper also discusses the implications of the proposed exit exam on electrical engineering education, and presents the results of a trial exam carried out recently.

Debris flow triggering by impulsive loading: mechanical modelling and case studies

1992 ◽  
Vol 29 (3) ◽  
pp. 345-352 ◽  
Author(s):  
M. J. Bovis ◽  
B. R. Dagg
Keyword(s):  
Debris Flow ◽  
Case Studies ◽  
Impulsive Loading ◽  
Stream Channel ◽  
Channel Stability ◽  
Coast Mountains ◽  
Debris Slide ◽  
Slide Debris ◽  
Triggering Mechanisms ◽  
Undrained Loading

A mechanism is proposed by which debris flows can be triggered through impulsive loading. Momentum transferred from hillslope failures to steep stream bed materials may be sufficient to initiate a debris flow where one may not otherwise occur. An important parameter in the momentum transfer is the planimetric angle between the slide path axis and the stream channel axis. Preliminary stability equations for both drained and undrained loading are developed from formulae commonly used to assess stream channel stability. Case studies from two basins in the southern Coast Mountains of British Columbia are used to illustrate the mechanisms. Key words : debris flow, triggering, mechanisms, rock slide, debris slide, Coast Mountains.

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