Lecture

Stream Correction and Protection Measures

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In course

CIVIL-410: Fluvial hydraulics and river engineering

Le cours donne aux étudiants des solides connaissances théoriques en hydraulique fluviale, et enseigne les bases de l'ingénierie fluviale dans le but de concilier la protection contre les crues et la protection de l'environnement. Le cours est illustré par ...

Description

This lecture covers the concept and design of protective measures for stream correction, focusing on increasing hydraulic capacity, modifying stream characteristics, and maximizing flood protection through plot correction and section modification. It discusses the consequences of altering stream ecology, the importance of bank protection, and the use of various protective measures such as deflectors, groynes, and embankments. The lecture also delves into the design considerations for riprap, rockfill, and geotextile installations to prevent erosion and ensure stability. Practical examples and calculations for sizing protective measures are provided, emphasizing the balance between hydraulic functionality, environmental protection, and safety against floods.

Instructors (3)

Giovanni De Cesare

Expertise Numerical simulation and physical modeling of hydraulic works and schemes; reservoir sedimentation and turbidity currents; reservoir sediment management; Ultrasonic Doppler flow measurement; river training work and restoration; soil bioengineering and nature based solutions; fluvial eco-morphology; rapid transients in pressurized waterways; technology transfer, commissioned studies and expert reports in applied hydraulics, hydraulic constructions and infrastructures; organization of continuous edu

Stéphanie Joëlle André

Azin Amini

Education: MSc.: Structural Engineering, University of Tehran, Iran, 2002 Master Thesis: "Three dimensional analysis of crack propagation in Latiyan butress dam using smeard crack model" BSc.: Civil Engineering, University of Tehran, Iran, 2000

Official source

Related concepts (28)

Flood

A flood is an overflow of water (or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrology and are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding, for example land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees, and larger environmental issues such as climate change and sea level rise.

Flood control

Flood control (or flood mitigation or flood protection or flood alleviation) methods are used to reduce or prevent the detrimental effects of flood waters. Flood relief methods are used to reduce the effects of flood waters or high water levels. Flooding can be caused by a mix of both natural processes, such as extreme weather upstream, and human changes to waterbodies and runoff. A distinction is made between structural and non-structural flood control measures.

Erosion

Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust and then transports it to another location where it is deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as physical or mechanical erosion; this contrasts with chemical erosion, where soil or rock material is removed from an area by dissolution.

Geotextile

Geotextiles are permeable fabrics which, when used in association with soil, have the ability to separate, filter, reinforce, protect, or drain. Typically made from polypropylene or polyester, geotextile fabrics come in two basic forms: woven (resembling mail bag sacking) and nonwoven (resembling felt). Geotextile composites have been introduced and products such as geogrids and meshes have been developed. Geotextiles are durable and are able to soften a fall.

Flood warning

A flood warning is closely linked to the task of flood forecasting. The distinction between the two is that the outcome of flood forecasting is a set of forecast time-profiles of channel flows or river levels at various locations, while "flood warning" is the task of making use of these forecasts to make decisions about whether warnings of floods should be issued to the general public or whether previous warnings should be rescinded or retracted.

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Stream Correction: Hydraulic Capacity and Protection Measures

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Protection Measures Against Floods

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