Analysis of Circular Culvert Constructed across with and without Geotextile Embankment using Ansys Software

  Neenu K Baby,  Prof.Raghunandan Kumar R,  Prof Dr.Lovely K.M

Basically, a culvert means a covered hydraulic structure which conveys fluid. Culverts are available in many sizes and shapes including round, elliptical, flat-bottomed, pear-shaped, and box-like constructions. In this paper, only take the comparison of square and circular culvert is used. The culvert type and shape selection is based on a number of factors including: requirements for hydraulic performance, limitation on upstream water surface elevation, and roadway embankment height.Therefore in a broad sense, pipe culverts in a small scale represent normal pipes like precast concrete pipes. Culvert is idealy suited for a road or railway bridge crossing a screen with a limited flow. Box culverts are economical due to their rigidity and monolithic action and separate foundations are not required. Culvert failures can occur for a wide variety of reasons including; maintenance, environmental, and installation related failures, functional or process failures related to capacity and volume causing the erosion of the soil around or under them, and structural or material failures that cause culverts to fail due to collapse or corrosion of the materials from which they are made. If the failure is sudden, it can result in injury or loss of life. Sudden road collapses are often at poorly designed and engineered culvert crossing sites. Water passing through undersized culverts will scour away the surrounding soil over time. This can cause a sudden failure during medium-sized rain events. There are more than 5,000,000 culverts currently in use in the United States alone. Continued inspection, maintenance, and replacement of these structures is crucial for infrastructure and safety. Accidents due to culvert failure can also occur if a culvert has not been adequately sized and a flood event overwhelms the culvert, or disrupts the road or railway above it. Ongoing culvert function without failure depends on proper design and engineering considerations being given to load and water capacities, surrounding soil analysis, backfill and bedding compaction, and erosion protection. So, geotextile is used in the embankment. Result of analysis indicate that one of the primary function of geotextile was to reduce the horizontal displacement significantly. Also it is observed from the obtained result that stress and displacement for circular culvert construced across with geotextile embankment is less than stress and displacement for circular culvert across without geotextile embankment.

Keywords- embankment, culvert, geotextile, circular culvert, soil properties

Unique Identification Number - IJEDR1504058
Page Number(s) - 375-379
Pubished in - Volume 3 | Issue 4 | November 2015
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Neenu K Baby,  Prof.Raghunandan Kumar R,  Prof Dr.Lovely K.M,   "Analysis of Circular Culvert Constructed across with and without Geotextile Embankment using Ansys Software", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.3, Issue 4, pp.375-379, November 2015, Available at :http://www.ijedr.org/papers/IJEDR1504058.pdf