http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Design, construction, and maintenance of relief wells
"All water retention structures are subject to seepage through their foundations and abutments. Relief wells, serving as controlled artificial springs, reduce resultant pressures to safe values and prevent the removal of soil via piping or internal erosion. This volume provides guidance and information on the design, construction, and maintenance of pressure relief wells installed for the purpose of relieving subsurface hydrostatic pressures which may develop within the pervious foundations of dams, levees, and hydraulic structures."--BOOK JACKET.
"The book presents a comprehensive study of relief wells, and commences with a survey of various relief well applications and basic considerations such as foundation permeability, anisotropic conditions, and the chemical composition of ground waters. Chapters outline the analyses of single wells and multiple well systems, the design of well systems and installation, and relief well outlets. Changing its focus to maintenance and well rehabilitation, the book closes with a review of periodic inspections and pumping tests; efficiency reduction due to mechanical and chemical malfunctioning and biological incrustation; mechanical contamination; and recommended treatments, including chemical treatment with polyphosphates."--BOOK JACKET.
Ch. 1. Introduction -- Ch. 2. Relief Well Applications -- Ch. 3. Basic Considerations -- Ch. 4. Analysis of Single Wells -- Ch. 5. Analysis of Multiple Well Systems -- Ch. 6. Well Design -- Ch. 7. Design of Well Systems -- Ch. 8. Relief Well Installation -- Ch. 9. Relief Well Outlets -- Ch. 10. Inspection Maintenance and Evaluation -- Ch. 11. Malfunctioning of Wells and Reduction in Efficiency -- Ch. 12. Well Rehabilitation -- Appendix B: Mathematical Analysis of Underseepage and Substratum Pressures.
Includes bibliographical references (p. 71-72) and index.
Technical engineering and design guides as adapted from the U.S. Army Corps of Engineers ; no. 3