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Author :
Publisher :
ISBN 13 :
Total Pages : 878 pages
Book Rating : 4.3/5 (91 download)
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1368 pages
Book Rating : 4.:/5 (319 download)
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.3/5 (555 download)
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.
Author : James Lawrence Fouss
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.X/5 (3 download)
Download or read book Structural Design Procedure for Corrugated Plastic Drainage Tubing written by James Lawrence Fouss and published by . This book was released on 1973 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Craig A. Ballinger
Publisher :
ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.:/5 (1 download)
Download or read book Culvert Repair Practices Manual: Appendices written by Craig A. Ballinger and published by . This book was released on 1995 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : DIANE Publishing Company
Publisher : DIANE Publishing
ISBN 13 : 9780788123337
Total Pages : 72 pages
Book Rating : 4.1/5 (233 download)
Download or read book Comprehensive Guideline for Procurement of Products Containing Recovered Materials written by DIANE Publishing Company and published by DIANE Publishing. This book was released on 1996-03 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The EPA's proposal for a Comprehensive Procurement Guideline designating items that are or can be made with recovered materials. Covers: background (materials in solid wastes; benefits of recycling; requirements; criteria for selecting items for designation; and methodology for selecting items for designation); paper and paper products; vehicular products; construction products; transportation products; park and recreation products; landscaping products; non-paper office products and more. Tables.
Author : Lambert K. Smedema
Publisher : CRC Press
ISBN 13 : 1482283867
Total Pages : 462 pages
Book Rating : 4.4/5 (822 download)
Download or read book Modern Land Drainage written by Lambert K. Smedema and published by CRC Press. This book was released on 2004-08-15 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully renewed and extended, this edition is a valuable source of information for anyone involved in drainage engineering and management. It provides new theories, technologies, knowledge and experiences in combination with traditional land development practices in the humid temperature zone. Aspects covered include: management and maintenance;
Author : Stanley W. Trimble
Publisher : CRC Press
ISBN 13 : 1351249819
Total Pages : 1478 pages
Book Rating : 4.3/5 (512 download)
Download or read book Encyclopedia of water Science written by Stanley W. Trimble and published by CRC Press. This book was released on 2007-12-26 with total page 1478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filled with figures, images, and illustrations, Encyclopedia of Water Science, Second Edition provides effective concepts and procedures in environmental water science and engineering. It unveils a wide spectrum of design concepts, methods, and solutions for enhanced performance of water quality, treatment, conservation, and irrigation methods, as well as improved water efficiency in industrial, municipal, and agricultural programs. The second edition also includes greatly enhanced coverage of streams and lakes as well as many regional case studies. An International Team Addresses Important Issues The only source to provide full coverage of current debates in the field, the encyclopedia offers professional expertise on vital issues including: Current laws and regulations Irrigation management Environmental water economics Agroforestry Erosion control Nutrient best management practices Water sanitation Stream and lake morphology and processes Sharpen Your Skills — Meet Challenges Well-Armed A direct and reliable source for best practices in water handling, preservation, and recovery, the encyclopedia examines challenges in the provision of safe water supplies, guiding environmental professionals as they face a worldwide demand for sanitary and affordable water reserves. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]
Author : United States. Cooperative State Research Service. Current Research Information System
Publisher :
ISBN 13 :
Total Pages : 940 pages
Book Rating : 4.:/5 (31 download)
Download or read book Swine Research written by United States. Cooperative State Research Service. Current Research Information System and published by . This book was released on 1983 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. C. P. M. Stuyt
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251054277
Total Pages : 204 pages
Book Rating : 4.0/5 (542 download)
Download or read book Materials for Subsurface Land Drainage Systems written by L. C. P. M. Stuyt and published by Food & Agriculture Org.. This book was released on 2005 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reliable subsurface drainage systems for groundwater table and salinity control are needed to maintain or enhance the productivity of irrigated lands and to contribute to the rural development of lowlands in the humid tropic. This publication presents guidelines to assess the need for envelopes and for the selection of appropriate materials (i.e. pipes and envelopes) for the proper and lasting performance of subsurface drainage systems. In addition, it also contains guidelines for adequate installation and maintenance of drainage materials as well as the required specifications and standards of such materials, which may be used in tender documents for implementation of subsurface drainage works. Practical guidelines for the implementation of laboratory and field investigations to evaluate the performance of drainage materials have also been included.--Publisher's description.
Author :
Publisher : Plastics Pipe Institute
ISBN 13 : 9781952632006
Total Pages : 620 pages
Book Rating : 4.6/5 (32 download)
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.
Author : Willem Vlotman
Publisher : CRC Press
ISBN 13 : 1000042200
Total Pages : 509 pages
Book Rating : 4.0/5 ( download)
Download or read book Modern Land Drainage written by Willem Vlotman and published by CRC Press. This book was released on 2020-05-07 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Land Drainage 2nd edition is a fully revised and updated edition of the 2004 edition. Modern Land Drainage describes traditional drainage formulas (Hooghoudt, Kirkham, Donnan, Ernst, Glover-Dumm) for rainfed agriculture in the humid temperature zone. Significant parts are devoted to drainage for salinity control of irrigated land in (semi-) arid zones, and to drainage of rice land in the humid tropics. Institutional, management and maintenance aspects are extensively covered, as well as the mitigation of adverse impacts of drainage interventions on the environment. The latest computer applications for drainage design in the context of integrated water management are described (DRAINMOD, HEC, SWAP, etc.). Field surveys are executed by governments, with the aid of consultants, but rarely are the end stakeholders (i.e., farmers and general public) involved from inception to planning to execution of a drainage system. Yet, during the Operation, Management and Maintenance (OMM) phase of a water management system, they are expected to takeover, run, bear and be responsible for the costs of OMM. The book describes successful methodologies and processes to be followed for engagement of stakeholders at all levels, from government to farm, from minister to farmer, and, from beginning to end. The book covers all aspects needed for sustainable drainage. The latest survey methodologies with satellites and drones are suggested to assess cause and effect. Waterlogging and salinity are the effect of something caused most likely upstream of the drainage problem location. Hence treating the cause may be more cost-effective. Triple Bottom Line (social, environmental and financial considerations) and the water-food-energy nexus are an integral part of the drainage design process. Controlled drainage, i.e. the balance of removal and conservation of drainage water and minimising solute transport as low as reasonably achievable (ALARA principle) is extensively described. This work is intended for use both as a university level textbook and as a professional handbook; it is of particular value to professionals engaged in drainage development in the context of integrated water resources and river basin management, civil and agricultural engineers, government officials, university students and libraries.
Download or read book Water Operation and Maintenance Bulletin written by and published by . This book was released on 1992 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bobby A. Stewart
Publisher : CRC Press
ISBN 13 : 9780824709488
Total Pages : 1114 pages
Book Rating : 4.7/5 (94 download)
Download or read book Encyclopedia of Water Science (Print) written by Bobby A. Stewart and published by CRC Press. This book was released on 2003-07-31 with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt: PRINT/ONLINE PRICING OPTIONS AVAILABLE UPON REQUEST AT [email protected]
Author : W. Dierickx
Publisher :
ISBN 13 :
Total Pages : 274 pages
Book Rating : 4.E/5 ( download)
Download or read book Electrolytic Analogue Study of the Effect of Openings and Surrounds of Various Permeabilities on the Performance of Field Drainage Pipes written by W. Dierickx and published by . This book was released on 1980 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the entrance resistance, the hydraulic gradient in the vicinity of the perforations can reach high values and massive invasion of soil particles may occur. These gradients are markedly reduced when the drain is surrounded by a permeable envelope.
Author : M.G. Bos
Publisher : Springer Science & Business Media
ISBN 13 : 9400917708
Total Pages : 238 pages
Book Rating : 4.4/5 (9 download)
Download or read book The Inter-Relationship Between Irrigation, Drainage and the Environment in the Aral Sea Basin written by M.G. Bos and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The irrigated area in the Aral Sea basin totals about 7. 5 million hectare. Part of the water supplied to this area is consumed by the irrigated crop; the remainder of the supplied water drains to the groundwater basin, to downstream depressions, or back to the rivers. During its use, however, this drained part of the water accumulates salts and chemicals. The disposal of this polluted water causes a variety of (environmental) problems. If the percentage consumed water of the total water supply to an irrigated area (the so-called overall consumed ratio) can be increased, less water needs to be drained. This alleviates part of the related (environmental) problems. Further, if the overall consumed ratio for the above 7. 5 million hectare is improved, less water needs to be diverted from the rivers. Hence, more water can flow towards the Aral Sea. As mentioned above, part of the non-consumed irrigation water drains to the groundwater basin. Commonly, the natural discharge capacity of this basin is insufficient to handle this imported water. As a result, the groundwater table rises towards the land surface causing waterlogging. In (semi-)arid zones this waterlogging triggers a soil salinity problem resulting to a significant reduction in crop yields. The artificial increase of the discharge capacity, and lowering of the groundwater table, solves the soil salinity problem.
Author :
Publisher :
ISBN 13 :
Total Pages : 752 pages
Book Rating : 4.F/5 ( download)
Download or read book Aqualine Abstracts written by and published by . This book was released on 1989 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
