Construction Dewatering

The most up-to-date guide to construction dewatering and groundwater control In the past dozen years, the methods of analyzing and treating groundwater conditions have vastly improved. The Third Edition of Construction Dewatering and Groundwater Control, reflecting the most current technology and practices, is a timely and much-needed overview of this rapidly changing field. Illustrated with hundreds of new figures and photographs and including numerous detailed case histories, the Third Edition of Construction Dewatering and Groundwater Control is a comprehensive and valuable reference for both students and practicing engineers alike. Drawing on real-world experience, the authors lead the reader through all facets of the theory and practice of this fascinating and often complex engineering discipline. Discussion includes: Dozens of case histories demonstrating various groundwater control practices and lessons learned in groundwater control and work performed Detailed methods of controlling groundwater by use of conventional dewatering methods as well as vertical barrier, grouted cutoff, and frozen ground techniques Contracting practices and conflict resolution methods that will help minimize disputes Alternatives and effective practices for handling and treating contaminated groundwater Innovations in equipment and materials that improve the performance and efficiency of groundwater control systems Practices and procedures for success in artificial recharge Groundwater modeling to simulate and plan dewatering projects Inclusion of dual U.S. customary and metric units throughout Construction Dewatering and Groundwater Control is an indispensable tool for all engineering and construction professionals searching for the most up-to-date coverage of groundwater control for various purposes, the modern ways to identify and analyze site-specific situations, and the modern tools available to control them.

The control of groundwater is one of the most common and complicated problems encountered on a construction site. The Second Edition explains the physical laws governing groundwater and soils, and provides practical solutions to construction dewatering problems. New chapters on groundwater computer modeling, dealing with industrial wastes and contaminated water, and operating long-term dewatering systems provide the latest information on these important topics.

A practical guide to problems of ground water control. Starts with a theoretical discussion based on soil mechanics, hydrology, geology, and fluid mechanics. Covers all practical aspects including costs, specifications, and contracts. Thoroughly illustrated with reference tables and charts.

Part of the Indiana Dunes National Lakeshore shares a common boundary with the Northern Indiana Public Service Company (NIPSCO). This area is underlain by unconsolidated deposits approximately 180 feet thick. NIPSCO accumulates fly ash from the burning of coal in electric-power generating units in settling ponds. Seepage from the ponds has raised ground-water levels above natural levels approximately 15 feet under the ponds and more than 10 feet within the Lakeshore. NIPSCO is presently (1977) constructing a nuclear powerplant, and construction activities include pumping ground water to dewater the construction site. The company has installed a slurry wall around the site to prevent lowering of ground-water levels within the Lakeshore. Plans call for continuous pumping through at least December 1979. A multilayered digital flow model was constructed to simulate the ground-water system. The model was used to demonstrate the effects of seepage from the fly-ash ponds on ground-water levels. Also, the model indicated a decline of 3 feet or less in the upper sand unit and 5 feet or less in the lower sand unit within the Lakeshore.

Linking theory and application in a way that is clear and understandable, Groundwater Lowering in Construction: A Practical Guide to Dewatering, Second Edition uses the authors’ extensive engineering experience to offer practical guidance on the planning, design, and implementation of groundwater control systems under real conditions. Discover engineering methods that can help you improve working conditions, increase project viability, and reduce excavation costs. In the decade since publication of this book’s first edition, groundwater lowering and dewatering activities have been increasingly integrated into the wider ground engineering schemes on major excavations to help provide stable and workable conditions for construction below groundwater level. Consequently, many engineering ventures now require a more in-depth assessment of potential environmental impacts of dewatering and groundwater control, and this book details the latest best practices to evaluate and address them. Includes New Chapters Covering: Cutoff methods used for groundwater exclusion Issues associated with permanent or long-term groundwater control systems Groundwater control technologies used on contaminated sites Methods needed to understand, predict, and mitigate potential environmental impacts of groundwater control works Updated to reflect the crucial technological and application advances shaping construction processes, this book contains valuable direction that can give you a true competitive advantage in the planning and execution of temporary and permanent dewatering works. The authors cover cutting-edge methods and key subjects, such as the history of dewatering, working on contaminated sites, site investigation techniques, and operation and maintenance issues, including health, safety, and legal aspects. Written for practising engineers and geologists as well as postgraduate engineering students, this updated manual on design and practice provides numerous case histories and extensive references to enhance understanding.

Introductory technical guidance for civil engineers and construction managers interested in design of dewatering systems. Here is what is discussed: 1. ANALYSIS OF GROUNDWATER FLOW 2. MATHEMATICAL AND MODEL ANALYSES 3. FLOW NET ANALYSES 4. ELECTRICAL ANALOGY SEEPAGE MODELS 5. NUMERICAL ANALYSES 6. WELLPOINTS, WELLS, AND FILTERS 7. PUMPS, HEADERS, AND DISCHARGE PIPES 8. FACTORS OF SAFETY 9. DEWATERING OPEN EXCAVATIONS 10. DEWATERING SHAFTS AND TUNNELS 11. PERMANENT PRESSURE RELIEF SYSTEMS 12. FREEZING 13. CONTROL OF SURFACE WATER.