Trenchless Technology

Trenchless technology allows for the installation or renewal of underground utility systems with minimum disruption of the surface. As water and wastewater systems age or must be redesigned in order to comply with environmental regulations, the demand for this technology has dramatically increased. This is a detailed reference covering construction details, design guidelines, environmental concerns, and the latest advances in equipment, methods, and materials. * Design and analysis procedures * Design equations * Risk assessment * Soil compatibility and more

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.

A fully updated guide to no-dig engineering This thoroughly revised reference covers the latest techniques and materials for high-demand trenchless technology in underground projects. The book offers complete details on new tools, techniques, and analysis methods that can save you thousands of dollars in costs and weeks of surface disruptions. Written by recognized experts in the field, Trenchless Technology Pipeline and Utility Design, Construction, and Renewal, Second Edition offers clear explanations of the various trenchless technologies available—from pipe ramming, microtunneling, horizontal auger boring, horizontal directional drilling, pilot tube, direct pipe; to cured-in-place pipe, spray applied pipe lining, pipe replacement (bursting) and sliplining. Readers will get complete instruction on how to choose the best method for the project at hand. Refreshed throughout to reflect current tools, techniques, and regulations Explains pipe materials, social and environmental costs, pipe jacking, pipeline and pipeline renewal with reference to NASSCO and ASTM standards, as well as relevant EPA guidelines Written by nation’s leading experts on the topic

Design, Install, Inspect, and Manage Trenchless Technology Piping Projects Trenchless Technology Piping offers comprehensive coverage of pipe installation, renewal, and replacement using trenchless technology methods. This step-by-step resource explains how to implement efficient design, construction, and inspection processes and shows how to save time and money with a state-of-the-art project management system. Packed with detailed illustrations, the book surveys the wide variety of trenchless technologies available and discusses the recommended applications for each. This cutting-edge engineering tool also contains vital information on contracting, project delivery, safety, quality control, and quality assurance. COVERAGE INCLUDES: Trenchless technology methods for new pipe installations and old pipe linings and replacements Pipeline planning and design Pipe behavior under soil and traffic loads Details on different types of pipes, such as concrete, plastic, PVC, HDPE, GRP, and metallic Design and project management considerations for horizontal directional drilling (HDD) Trenchless replacement systems, including pipe bursting and pipe removal methods Construction and inspection requirements for cured-in-place pipe (CIPP) Design and construction considerations for pipe jacking and microtunneling methods Quality assurance, quality control, inspection, and safety

Pipeline Crossings (Manuals and Reports on Engineering Practice #89) was prepared by the Task Committee on Pipeline Crossings, Pipeline Crossings Technical Committee, Pipeline Division of the American Society of Civil Engineers. The purpose of this manual is to present common approaches for the design of crossing installations through the use of examples of standard practice as they exist in industry today. While the emphasis is on the pipeline crossing techniques of highways, railroads, and waterways, they can also be applied to cable and conduit crossings. The manual is divided into four major sections. First, general concepts are presented, including crossing environments, permits, and a description of the various types of crossings. The second section discusses the design issues while the different construction methods are explored in detail in the next section. Finally, the fourth section features a glossary of terms and a bibliography of resource materials. For new engineers, this manual may supplement what they were taught in school about pipeline design and construction. For more experienced engineers, it will hopefully provide useful options and guidelines from current practice.

This synthesis will be of interest to geologists; geotechnical, construction, and maintenance engineers; other state department of transportation (DOT) personnel involved with the planning, design, and permit issuance for conduits beneath roadways; local transportation agencies; utility contractors and consultants; and trenchless construction equipment manufacturers. It describes the current state of the practice for the use of trenchless technology for installing conduits beneath roadways. Trenchless construction is a process of installing, rehabilitating, or replacing underground utility systems without open-cut excavation. The synthesis is focused on trenchless technology for new installations. This report of the Transportation Research Board describes the trenchless installation technologies (methods, materials, and equipment) currently employed by state DOTs and other agencies to install conduits beneath roadways. The synthesis presents data obtained from a review of the literature and a survey of transportation agencies. For each technology identified, information is provided to describe the range of applications, basis for technique selection, site specific design factors to be considered, relative costs, common environmental issues, and example specifications. In addition, information on emerging technologies and research needs is presented.