Results 121 to 130 of about 273 (177)
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Concrete Pipe and Box Culverts
2017Description Get 10 peer-reviewed papers that resulted from the December 2016 symposium on Concrete Pipe and Box Culverts, held in Orlando, Florida. These papers critically evaluate the use of and the need for ASTM standards for concrete pipe products.
John J. Meyer, Josh Beakley
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2001
A variety of buried pipe infrastructure is needed to service the needs of our communities and resource industries for electrical, water, gas and oil supply, power development, storm-water and sanitary sewer systems, and highway and railway culverts. The conduit surrounded by soil is both loaded and supported by the earth and porewater: and geotechnical
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A variety of buried pipe infrastructure is needed to service the needs of our communities and resource industries for electrical, water, gas and oil supply, power development, storm-water and sanitary sewer systems, and highway and railway culverts. The conduit surrounded by soil is both loaded and supported by the earth and porewater: and geotechnical
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Estimating Service Life for Corrugated Steel Pipe Culverts
2018 IEEE Frontiers in Education Conference (FIE), 2018This research category paper is a work in progress that discusses the processes used to improve the service life estimation of steel culverts under roadways in the State of California. The service life of Corrugated Steel Pipe (CSP) culverts is largely dictated by the loss of wall section of pipe arising from corrosion.
George Aquino +8 more
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Tapered Inlets for Pipe Culverts
Journal of the Hydraulics Division, 1964The performance of pipe culverts on steep slopes with tapered inlets is, in general, sensitive to the presence of air-carrying vortices over the inlet. Under such conditions, an area of operation is defined. The minimum bound of the performance is shown to approximate inlet control operation of the inlet with atmospheric pressure over a free surface ...
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Concrete Pipe Culvert Behavior—Part 2
Journal of the Structural Division, 1974An 84-in. (2.13 m)-diam., reinforced concrete, dummy pipe culvert, with a 1,000-D load rating, was buried under 136 ft (41.5 m) of highway embankment. Six 40-ft (12.2-m)-long zones were subjected to the following bedding and backfill parameters: (1) pipe in trench, shaped bedding; (2) pipe in trench, unshaped, fine aggregate bedding; (3) positive ...
Raymond Eugene Davis, Alfred E. Bacher
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Beam-on-Springs Modeling of Jointed Pipe Culverts
Journal of Performance of Constructed Facilities, 2016AbstractIn this paper, an existing beam-on-springs modeling methodology is examined for suitability in estimating vertical displacements and joint movement in jointed pipe culvert systems. Methods of determining the modulus of subgrade reaction, ks, are used in beam-on-springs modeling and compared with results from laboratory tests on three buried ...
Timothy Sheldon +2 more
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1968
Almost twenty years ago the Department began to develop durability data on types of culvert materials. In the interim, various stopgap as well as very judicious policies have issued. The present criterion or design practice applicable to Federal Aid projects was affirmed by the Bureau of Public Roads, May 24, 1965.
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Almost twenty years ago the Department began to develop durability data on types of culvert materials. In the interim, various stopgap as well as very judicious policies have issued. The present criterion or design practice applicable to Federal Aid projects was affirmed by the Bureau of Public Roads, May 24, 1965.
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Pipe Culverts – Throttling Pipes – Inverted Siphons
2010Culverts are characterized hydraulically by various flow conditions. They are discussed first and then analyzed with a generalized diagram to present a simple design method. The so-called simple culvert is also considered, and the computational approach is compared with model tests.
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Hydraulic Resistance of a Helially Corrugated Metal Pipe Culvert
Power Technology and Engineering, 2016Results are presented of experimental hydraulic studies of a model of a helically corrugated metal pipe culvert. Hydraulic resistance values are considered for water moving under free-flow and surcharged conditions. The influence of pipe slope and pipe filling on the roughness coefficient under free-flow conditions was determined.
V. I. Altunin, O. N. Chernykh
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Prefabricated Reducers as Entrances for Pipe Culverts
Journal of the Highway Division, 1961Preliminary studies indicate that flow in reducer entrance will prime naturally; resultant sub-atmospheric pressures will become effective discharge energy, sufficiently high to establish flow control at larger opening; reasonable prediction of improved flow rate; prefabricated reducer secures natural freedom from serious vortexes, prevention of ...
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