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Field Tests And Analyses Of High Density Polyethylene Pipes For Highway Application
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Book Synopsis Field Tests and Analyses of High Density Polyethylene Pipes for Highway Application by : Kam Weng Ng
Download or read book Field Tests and Analyses of High Density Polyethylene Pipes for Highway Application written by Kam Weng Ng and published by . This book was released on 1997 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The findings from the field tests in Phase I and this phase will provide data for improvement of Iowa DOT specifications for HDPE pipe and its backfill condition. Field studies of Phase I conducted on 36-in. (915-mm) diameter HDPE pipes from Manufacturer C with four backfills were used for an assessment of the influence of the soil envelope on pipes' performance in this thesis. Furthermore, full scale field tests were conducted in this phase on 36-in. (915-mm) pipe from Manufacturer A with four additional backfill materials. The testing program used in this phase is similar to Phase I.
Book Synopsis Investigation of High Density Polyethylene Pipe for Highway Applications by : Brett Eric Conard
Download or read book Investigation of High Density Polyethylene Pipe for Highway Applications written by Brett Eric Conard and published by . This book was released on 1997 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This knowledge base will allow the IDOT to revise current specifications for the use of high density polyethylene pipe for shallow fill conditions. Testing included laboratory tests to evaluate polyethylene pipe response at elevated temperatures and field tests on polyethylene pipes to determine the response of various soilstructure systems to surface live loads.
Book Synopsis Investigation of Plastic Pipes for Highway Applications by : Robert A. Lohnes
Download or read book Investigation of Plastic Pipes for Highway Applications written by Robert A. Lohnes and published by . This book was released on 1997 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally accepted that high density polyethylene pipe (HDPE) performs well under live loads with shallow cover, provided the backfill is well compacted. Although industry standards require carefully compacted backfill, poor inspection and/or faulty construction may result in soils that provide inadequate restraint at the springlines of the pipes thereby causing failure. The objectives of this study were: 1) to experimentally define a lower limit of compaction under which the pipes perform satisfactorily, 2) to quantify the increase in soil support as compaction effort increases, 3) to evaluate pipe response for loads applied near the ends of the buried pipes, 4) to determine minimum depths of cover for a variety of pipes and soil conditions by analytically expanding the experimental results through the use of the finite element program CANDE.
Book Synopsis Investigation of High Density Polyethylene Pipe for Highway Applications by :
Download or read book Investigation of High Density Polyethylene Pipe for Highway Applications written by and published by . This book was released on 1996 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past, culvert pipes were made only of corrugated metal or reinforced concrete. In recent years, several manufacturers have made pipe of lightweight plastic - for example, high density polyethylene (HDPE) - which is considered to be viscoelastic in its structural behavior. It appears that there are several highway applications in which HDPE pipe would be an economically favorable alternative. However, the newness of plastic pipe requires the evaluation of its performance, integrity, and durability; A review of the Iowa Department of Transportation Standard Specifications for Highway and Bridge Construction reveals limited information on the use of plastic pipe for state projects. The objective of this study was to review and evaluate the use of HDPE pipe in roadway applications. Structural performance, soil-structure interaction, and the sensitivity of the pipe to installation was investigated. Comprehensive computerized literature searches were undertaken to define the state of-the-art in the design and use of HDPE pipe in highway applications. A questionnaire was developed and sent to all Iowa county engineers to learn of their use of HDPE pipe. Responses indicated that the majority of county engineers were aware of the product but were not confident in its ability to perform as well as conventional materials. Counties currently using HDPE pipe in general only use it in driveway crossings. Originally, we intended to survey states as to their usage of HDPE pipe. However, a few weeks after initiation of the project, it was learned that the Tennessee DOT was in the process of making a similar survey of state DOT's. Results of the Tennessee survey of states have been obtained and included in this report. In an effort to develop more confidence in the pipe's performance parameters, this research included laboratory tests to determine the ring and flexural stiffness of HDPE pipe provided by various manufacturers. Parallel plate tests verified all specimens were in compliance with ASTM specifications. Flexural testing revealed that pipe profile had a significant effect on the longitudinal stiffness and that strength could not be accurately predicted on the basis of diameter alone. Realizing that the soil around a buried HDPE pipe contributes to the pipe stiffness, the research team completed a limited series of tests on buried 3 ft-diameter HDPE pipe. The tests simulated the effects of truck wheel loads above the pipe and were conducted with two feet of cover. These tests indicated that the type and quality of backfill significantly influences the performance of HDPE pipe. The tests revealed that the soil envelope does significantly affect the performance of HDPE pipe in situ, and after a certain point, no additional strength is realized by increasing the quality of the backfill.
Download or read book HDPE Pipe written by Yick Grace Hsuan and published by Transportation Research Board. This book was released on 1999 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Analysis and Design written by and published by . This book was released on 1998 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Establishing a Design Procedure for Buried Steel-reinforced High-density Polyethylene Pipes by : Jie Han
Download or read book Establishing a Design Procedure for Buried Steel-reinforced High-density Polyethylene Pipes written by Jie Han and published by . This book was released on 2015 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two field tests were conducted to investigate the field performance of steel-reinforced high-density polyethylene (SRHDPE) pipes during installation and under traffic loading. One test site was located on E 1000 road in Lawrence, KS, which is close to Clinton Lake. Three SRHDPE pipes with a diameter of 3 ft and a length of 24 ft were buried in a 6 ft wide trench with 2 ft thick soil cover. This test site had two test sections: one section was filled with Aggregate Base Class 3 aggregate (AB3) and the second section was filled with crushed stone. The second field study was conducted at a Kansas Department of Transportation (KDOT) storage yard in Kansas City, KS. Four 6 ft long SRHDPE pipes with a diameter of 2 ft were connected and buried in a trench with a dimension of 4.6 ft wide × 27.5 ft long × 4.2 ft deep. Two types of backfill material were also used in the trench, namely, AB3 aggregate and crushed stone. Earth pressures, pipe deflections, and pipe strains on plastic valley, plastic cover, and steel ribs were monitored during pipe installation and under static loading on both test sites. The test results from the pipe installation and static loading showed that (1) the vertical arching factor (VAF) on the top of the pipe was approximately 1.1 and the lateral earth pressure coefficient was approximately 0.65; (2) the peaking deflection was observed in both field tests in a range of 0.25 to 1.80% (the peaking deflection in the AB3 section was greater than that in the crushed stone section); (3) the maximum strain of the pipe occurred on the plastic valley in the longitudinal direction at the pipe crown, which was in a range of 0.4-0.6% and much lower than the strain limit of 5% suggested by the American Association of State Highway and Transportation Officials (AASHTO, 2012); and (4) the Giroud and Han (2004) method and the AASHTO (2012) method could reasonably estimate the earth pressure on the pipe under static loading, while the Iowa Formula could estimate the pipe deflection during installation and caused by static loading. The earth pressures, the pipe deflections, and the strains of the pipes in the Lawrence site were monitored for 680 days and all increased with time. Two empirical correlations were proposed to calculate the VAF and the pipe stiffness factor at a given time. The AASHTO (2012) design methods for metal pipes and high-density polyethylene (HDPE) pipes were modified for SRHDPE pipes based on the laboratory and field test results. A design procedure for SRHDPE pipes is proposed and illustrated by a design example.
Book Synopsis Geosynthetics for Development of Transportation Infrastructures by : Sujit Kumar Dash
Download or read book Geosynthetics for Development of Transportation Infrastructures written by Sujit Kumar Dash and published by Frontiers Media SA. This book was released on 2021-05-05 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Density Polyethylene Pipe in Highway Applications by : Brent Matthew Phares
Download or read book High Density Polyethylene Pipe in Highway Applications written by Brent Matthew Phares and published by . This book was released on 1996 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transportation Research Record written by and published by . This book was released on 1996 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content by : Michael Pluimer
Download or read book Field Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content written by Michael Pluimer and published by . This book was released on 2018 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Research Report 870: Field Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content explores the use of corrugated high density polyethylene (HDPE) pipe manufactured with recycled content and proposes guidelines for manufacturing these pipes to ensure they meet the service life requirements for the given application. This project expounded on the research published in NCHRP Report 696. The research consisted of manufacturing several large diameter corrugated HDPE pipes out of various blends of virgin and post-consumer recycled (PCR) materials commonly used in land drainage applications and evaluating these pipes in the field and laboratory to determine their service life in typical installed conditions. PCR materials were the focus of this project as they are more readily available and typically used in the corrugated HDPE pipe industry than post industrial recycled materials. However, the research is applicable to both types. -- cc. http://www.trb.org/main/blurbs/176741.aspx.
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1988 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of High Density Polyethylene (HDPE) Pipe by : Anselem H. Rumpca
Download or read book Evaluation of High Density Polyethylene (HDPE) Pipe written by Anselem H. Rumpca and published by . This book was released on 1998 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the findings and recommendations on the evaluation of High Density Polyethylene (HDPE) Pipe resulting from a 1996 Transportation Enhancement/Hazard Elimination Project in Martin, South Dakota. This was the first project where HDPE pipe was allowed to be installed under a state highway in South Dakota. Department researchers installed instrumentation and conducted deflection testing on a 760 mm (30 in) HDPE pipe installed under US Highway 18 in Martin, South Dakota. A horizontal inclinometer probe was used to determine vertical heave or settlement. Surface profiles were monitored with a Dipstick® Floor Profiler. Thirteen separate sets of measurements were taken between August 1996 and June 1997. Costs were determined for installation and delivery of both HDPE pipes and reinforced concrete pipes (RCP). Neighboring states were surveyed to determine their costs for storm sewer pipes as well as specifications for installing HDPE pipes. Recommendations were made to allow the installation of HDPE pipe based on information received from the state survey, literature reviews, and the results of the Martin, South Dakota Project.
Book Synopsis Updated Test and Design Methods for Thermoplastic Drainage Pipe by : Timothy J. McGrath
Download or read book Updated Test and Design Methods for Thermoplastic Drainage Pipe written by Timothy J. McGrath and published by Transportation Research Board. This book was released on 2009 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains the findings of research performed to develop a recommended load and resistance factor design (LRFD) specification for thermoplastic pipe used in culverts and drainage systems for highway structures. The report details the research performed and includes a recommended LRFD design specification, a quality assurance specification for manufactured thermoplastic pipe, and the results of supporting analyses.
Download or read book Handbook of Polyethylene Pipe written by and published by Plastics Pipe Institute. This book was released on 2012-02 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the Plastics Pipe Institute (PPI), the Handbook describes how polyethylene piping systems continue to provide utilities with a cost-effective solution to rehabilitate the underground infrastructure. The book will assist in designing and installing PE piping systems that can protect utilities and other end users from corrosion, earthquake damage and water loss due to leaky and corroded pipes and joints.
Book Synopsis Comparison Between Field and Analytical Results on the Structural Performance of Deeply Buried 42 & 60-inch Diameter High Density Polyethylene Pipes by : Bashar K. Al-Tarawneh
Download or read book Comparison Between Field and Analytical Results on the Structural Performance of Deeply Buried 42 & 60-inch Diameter High Density Polyethylene Pipes written by Bashar K. Al-Tarawneh and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by and published by . This book was released on 2009 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
