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Author: Steven R. Kramer
Publisher: Springer Science & Business Media
ISBN: 146153058X
Category : Science
Languages : en
Pages : 216
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Book Description
In the past decade, the field of trenchless technology has expanded rapidly in products, equipment, and utilization. This expansion would not have occurred without a strong increase ineconomic incentives to the user. Because theoperating environment has changed, trenchless technology is often the preferred alternative to traditional methods of digging holes and installing conduits. The infrastructure in which we live has become more congested and has to beshared by several users. In addition, the cost of restoring a road or landscaped area after construction may be higher than the cost of installing the conduit. These factors add to the need for trenchless technology-the ability to dig holes without disturbing the surface. In some ways, trenchless technology is a futuristic concept. Ruth Krauss in a children'sbookofdefinitions wrote,"AHole...Is to Dig." But thisstatement is not necessarily true. Today, a hole could be to bore. Trenchless technology is not new. But it certainly has become the buzzword of the construction industry and it appears that it will have a growing impact in the way contractors, utilities, and others install new facilities. Methods to bore horizontal holes were practiced as early as the 18005, but this technology has greatly changed. Today's tools include sophisticated drilling methods, state-of the-art power systems, and electronic guidance techniques. These tools can bore faster, safer, and more accurately, and in many instances more economically, than open-cllt methods. Technology has played an important role in these advances, but economics has become the driving force in making these systems popular.
Author: Steven R. Kramer
Publisher: Springer Science & Business Media
ISBN: 146153058X
Category : Science
Languages : en
Pages : 216
Get Book Here
Book Description
In the past decade, the field of trenchless technology has expanded rapidly in products, equipment, and utilization. This expansion would not have occurred without a strong increase ineconomic incentives to the user. Because theoperating environment has changed, trenchless technology is often the preferred alternative to traditional methods of digging holes and installing conduits. The infrastructure in which we live has become more congested and has to beshared by several users. In addition, the cost of restoring a road or landscaped area after construction may be higher than the cost of installing the conduit. These factors add to the need for trenchless technology-the ability to dig holes without disturbing the surface. In some ways, trenchless technology is a futuristic concept. Ruth Krauss in a children'sbookofdefinitions wrote,"AHole...Is to Dig." But thisstatement is not necessarily true. Today, a hole could be to bore. Trenchless technology is not new. But it certainly has become the buzzword of the construction industry and it appears that it will have a growing impact in the way contractors, utilities, and others install new facilities. Methods to bore horizontal holes were practiced as early as the 18005, but this technology has greatly changed. Today's tools include sophisticated drilling methods, state-of the-art power systems, and electronic guidance techniques. These tools can bore faster, safer, and more accurately, and in many instances more economically, than open-cllt methods. Technology has played an important role in these advances, but economics has become the driving force in making these systems popular.
Author: Mohammad Najafi
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 308
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Book Description
Drainage infrastructure systems (culvert, storm sewer, outfall and related drainage elements) are mostly buried underground and are in need of special attention in terms of proactive/preventive asset management strategy. Drainage infrastructure systems represent an integral portion of roadway assets that routinely require inspection, maintenance, repair and renewal. Further challenges are the wide geospatial distribution of these infrastructure assets and environmental exposure. There has been considerable research conducted on culverts, but mostly looked at the problem from a traditional structural/geotechnical perspective. Asset management procedures for culverts and drainage infrastructure systems are complex issues, and can benefit a great deal from an optimal asset management program that draws from programs pertaining to buried pipes. The first and most important step in an asset management initiative is the establishment of mechanism for asset inventory and asset conditions in a format compatible with the routine procedures of field operators and inspectors. The first objective of this research project was to develop field protocols and operational business rules for inventory data collection and management and inspection of drainage infrastructures in terms of types of data to be collected, frequency of inspection, and analysis and reporting mechanisms. After review of these protocols by the project oversight committee, a pilot study was conducted to verify efficiency of their implementation. The condition assessment protocol introduced is useful in evaluating the overall condition of culverts and can be used for decision making regarding the repair, renewal or replacement of culverts. For the second objective of this project, investigators examined the inventory and inspection protocols employed by Ohio Department of Transportation (ODOT) and developed a decision support platform, which establishes a link between the inspection results and appropriate repair, renewal and replacement procedures. After applying the recommended procedures, the transportation agencies can better track the conditions of culverts thereby reducing the risks of culvert failures.
Author: Lester A. Herr
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 68
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Book Description
Author: Lester H. Gabriel
Publisher: Transportation Research Board
ISBN: 9780309061117
Category : Culverts
Languages : en
Pages : 52
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Book Description
"The synthesis describes the current state of the practice regarding state transportation agency standards and strategies that determine and define the service life of drainage pipe. Information for the synthesis was collected by surveying state transportation agencies and by conducting a literature search."--Avant-propos.
Author: Michael L. J. Maher
Publisher:
ISBN: 9780309271745
Category : Culverts
Languages : en
Pages : 133
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Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 474: Service Life of Culverts explores the time during which a culvert is expected to provide a desired function with a specified level of maintenance established at the design or retrofit stage. This study is an update of NCHRP Synthesis 254: Service Life of Drainage Pipe (1998), which itself was an update of NCHRP Synthesis 50: Durability of Drainage Pipe (1978). Developments in plastic pipe, fiber-reinforced concrete pipe, polymeric-coated metal pipe, recycled materials, larger and more diverse structures, and sophisticated analytical soil-structure interaction modeling within the past 15 years led to the development of this report." --
Author: M. Knight
Publisher: CRC Press
ISBN: 1000099563
Category : Technology & Engineering
Languages : en
Pages : 437
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Book Description
A collection of papers from the international symposium "Underground Infrastructure Research: Municipal, Industrial and Environmental Applications 2001". It explores materials for buried pipelines, pipeline construction techniques and condition assessment methods, and more.
Author: American Society of Civil Engineers. Geo-Institute
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 1266
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Book Description
GSP 126 contains 223 papers presented at Geo-Trans 2004, held in Los Angeles, California, July 27-31, 2004.
Author: Uni-Bell PVC Pipe Association
Publisher:
ISBN: 9780831134501
Category : House & Home
Languages : en
Pages : 0
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Book Description
The Most Thorough and Far-reaching Revision Yet! The new 5th edition of the Handbook of PVC Pipe Design and Construction is the most comprehensive and up-to-date reference on PVC pipe and fittings. It provides practical engineering and construction information. It includes recommendations applicable to the design and use of primarily underground PVC piping systems in both pressure and non-pressure applications. Previous editions have been used by engineers all across North America and around the globe in the utility and consulting engineering sectors, as well as in universities and technical institutions. New to the Fifth Edition Four new chapters PVC Pressure Pipe Installation PVC Non-Pressure Pipe Installation Trenchless Installation of PVC Pipe Molecularly Oriented Polyvinyl Chloride Pipe (PVCO) Updated and improved graphs and tables More open page format The collaborative result of thousands of hours of research and review, the contents of the 5th edition are numerically formatted by section and subsection, as well as by figure and table designation. This allows easy reference and quick access. The Handbook of PVC Pipe Design and Construction is a must-have reference for design engineers, public and private pipe utility managers, and students. A more complete text on PVC pipe is not available.
Author: Dietrich Stein
Publisher: Wiley-VCH
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 386
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Book Description
Designed as a fundamental source of information on the installation and renewal of non-man-size supply and sewage lines by the trenchless construction method, this book describes non-steerable and steerable microtunnelling systems, their ranges of application and relevant operational experience. The text is supplemented by numerous photographs, outline drawings, tables and charts. In-depth knowledge is given on the subjects of design and operation of different types of soil removal systems, measuring and steering techniques, construction of starting and target pits, as well as obstruction removal. Moreover, the presentations cover the special jacking pipes required for microtunnelling, and provide detailed information regarding the relevant stress and strain analyses. It is shown how the trenchless construction method can be used for marking service house connections, and that there are new ways to link up house service lines with shafts or sewers. A comprehensive bibliography rounds off the text
Author: Eric W. Strecker
Publisher:
ISBN:
Category : Drainage
Languages : en
Pages : 0
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Book Description
