(1) Understand the impact and responsibilities of technology on society and nature, and understand and can explain what is needed for ensuring happy and comfortable living for people and preserving a good natural environment.
(2) Understand the basic idea and knowledge of a river's hydraulic and disaster prevention functions and can explain them to others.
(3) Understand rivers' ecological and environmental functions and the basic idea of nature-oriented river works in connection with river and river basin environment conservation and creation, and can also find disaster prevention problems with individual construction cases and their solutions.
Outline:
This course will teach about the various engineering problems of rivers and river basin environments and their solutions as an application of the basic theory and technology related to River Engineering and Environmental Engineering taught in Kosen's Regular Course. Seeing rivers as a component of a city, the course will consider their roles and relationships with formation of urban cities, including as a source of water supply, its disaster prevention functions against floods, and creation of urban landscapes and habitats for aquatic life, etc. Specifically, classes will discuss urban water disasters and how to protect against them, and quicksand and river bed variations, and also teach the basic idea, construction examples, and problems of nature-oriented river works.
Style:
How classes will proceed, their content and method:
Classes will be explained as simply as possible, mainly using the textbook, and supplementary materials such as slides, etc.
Notice:
This course's content will amount to 90 hours of study in total. These hours include the learning time guaranteed in classes and the standard self-study time required for pre-study / review, and completing assignment reports. The course is open to students from any department. Classes will be taught as simply as possible, but students are required to have a basic knowledge of hydraulics, environment and rivers. Carefully read the materials and handouts that will be distributed in advance and understand their content.
Students who miss 1/3 or more of classes will not be eligible for a passing grade.
Contact: kanda@akashi.ac.jp
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Theme |
Goals |
| 2nd Semester |
| 3rd Quarter |
| 1st |
Formation of rivers and urban cities
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Learn about rivers and their basins, and can explain the role that they have played or the impact that they have had in city development as a platform for people's livelihoods and production activities.
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| 2nd |
Urban flood disasters and their countermeasures (1)
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Can classify urban floods in an engineering manner, extract their characteristics, and explain statistical methods for estimating the amount of water that causes urban flood disasters.
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| 3rd |
Urban flood disasters and their countermeasures (2)
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Can describe the actual situations and examples of urban flood disasters such as submersing or washing away houses, severing roads, damaging or destroying bridges, etc., due to overflow and sediment runoff. Also, can explain prevention and mitigation measures.
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| 4th |
Urban flood disasters and their countermeasures (3)
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Can explain as development methods for water resources in urban areas, countermeasures using structures such as dams and weirs—the cornerstones of river water utilization plans—and other softer countermeasures.
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| 5th |
Basis of earth and sand hydraulics
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Understand the sediment transport phenomenon, and can explain how earth and sand is produced along the river channels in mountainous areas such as surface erosion, landslides, and debris flow, and how to estimate the amount of earth and sand produced.
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| 6th |
Estimating amounts of quicksand
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Understand, in the context of hydraulics, the mechanism that transports earth and sand produced in river channels through them by stream, and can explain how to estimate the amount of quicksand.
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| 7th |
River bed variations and sand bank formations
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Understand river bed variations caused by the amount of quicksand's spatial imbalance and its scales, and can explain the formation of river channels and their changes.
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| 8th |
Local scouring around river structures and controlling it
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Can classify and organize the causes and forms of local scouring that occurs around river structures such as weirs, ground sills, and groynes, and explain how to assess and control scour depth using concrete examples.
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| 4th Quarter |
| 9th |
River ecological environments and their assessment (1)
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Understand how to preserve river ecological environments as habitats for aquatic life and shore vegetation in relation to human life, and can explain basic strategies for improving the fish habitat.
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| 10th |
River ecological environments and assessing them (2)
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Can explain how to quantitatively assess how a river's ecological environment changes when it is affected by human influence in ways such as basin area development and river structure installation.
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| 11th |
River environment and scenery
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Can consider the ideal state of rivers as components of urban landscapes, and explain the characteristics and the assessment criteria of river scenery.
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| 12th |
Overview of nature-oriented river works
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Can explain the basic philosophy of nature-oriented river works for preserving and creating beautiful scenery while taking into account a good environment for the creatures native to it, and the various river improvement methods.
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| 13th |
Present situation and problems of nature-oriented river improvement methods
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Understand planning and implementation of nature-oriented river works that use traditional methods such as masonry revetments, vegetative covered revetments, and wooden mattress, and can consider the future and ideal states of nature-oriented river works from analysis of successful and failed examples.
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| 14th |
What is fish-friendly river creation?
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Can explain fish habitat diversity in nature-oriented river works.
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| 15th |
Present situation and problems of citizen participation in nature-oriented river improvements
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Cooperation from community residents is essential to nature-oriented river works, from planning and construction up to operation and maintenance. Can explain the actual situation of citizen participation and how it should work.
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| 16th |
Final exam
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