Estudios de drenajes de fluidos por USGS y FHWA

Studies of fluid drains by USGS and FHWA

Hydrologic analysis involves the estimation of a design flow rate based on climatological and watershed characteristics. This analysis is one of the most important aspects of culvert design. Since statistical uncertainties are inherent in hydrologic analysis, the results of the analysis are not as accurate as the results of the hydraulic analysis of a culvert. Nonetheless, both of these analyses are required, and the hydrologic study must be performed first.

When you are talking about the analysis and design of hydraulic culvert, must take into account two great pioneers in doing this, which are the USGS (United States Geological Survey) (The USGS is a science organization That Provides Impartial information on the health of our Ecosystems and Environment, the Natural Hazards That Threaten us, the we rely on the natural resources, the actual impacts of climate and land-use change, and the core science systems That help us Provide Timely, Relevant, and useable information 1) the FHWA (US Federal Highway Administration), since all studies for years and should consider the types of pipes that are used in sewers, in addition to the headwater and tailwater are characteristics vital for these designs . This being so, which of the above mentioned two agencies have greater insight into the design and analysis of drainage systems and to apply different equations required for this?

Culverts are commonly used for cross drainage and can range in size from a single small culvert draining an isolated depression to multiple barrel designs and/or very large culverts for passing major stream channels under a roadway. Small culverts are also used for down drains to protect fill slopes or to divert roadway water from a bridge deck2.

In other words, what you are saying is that the agency sewer design is so important to any diversion of fluids that may affect different buildings or even an entire population, and that if this study was not done in the best way at some future to

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1 USGS, Science for a changing world, taken from: http://www.usgs.gov/aboutusgs/ at 1st November of 2014.

2 U.S. Department of Transportation, Federal Highway Administration, Introduction to Highway Hydraulics, Closed – Conduit Applications – Culvert Design, taken from: http://www.fhwa.dot.gov/engineering/hydraulics/pubs/08090/09.cfm at 1st November of 2014.

3 Arroyos de Barranquilla, Alcantarillado, taken from: http://www.arroyosdebarranquilla.co/barranquilla/alcantarillado at 1st November of 2014.

having floods due to poor design of sewers, a great example of this is the city of Barranquilla, as sewers have in this city is underground and only takes wastewater, i.e. when it rains this water has nowhere to go and therefore no flooding problems 3.

The article by David Chin shows 6 flow regimes that are recognized by the USGS and FHWA, which clearly differentiates the headwater and tailwater attached to this assay can see more clearly the picture where you see the above more accuracy.

The hydraulic design of a culvert installation requires the evaluation of a large amount of data including culvert location, waterway data, roadway data, and the design headwater. An exact theoretical analysis of culvert flow is extremely complex because the flow is usually nonuniform with regions of both gradually varying and rapidly varying flow. An exact analysis involves backwater and drawdown calculations, energy and momentum balance, and application of the results of hydraulic model studies.

There are many equations which can give us greater accuracy at the time of the respective designs and analysis of sewers, of course, before sending him perform.

Each flow type has conditions, and those conditions are based equations for different volumetric flow you have, where it

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