Detailansicht
Water Wells and Boreholes
ISBN/EAN: 9780470849897
Umbreit-Nr.: 1152342
Sprache:
Englisch
Umfang: 632 S.
Format in cm:
Einband:
gebundenes Buch
Erschienen am 20.10.2006
Auflage: 1/2006
- Zusatztext
- InhaltsangabePreface. Lewis Clark (1937-2004): an appreciation. Acknowledgements. Chapter 1 Introduction. 1.1 Wells and boreholes. 1.2 Groundwater occurrence. 1.3 Groundwater flow. Chapter 2 Groundwater investigations for locating well sites. 2.1 Desk studies. 2.2 Field reconnaissance. 2.3 Well survey. 2.4 Geophysical surveys. 2.5 Drilling investigations. 2.6 Groundwater resources assessment. 2.7 Groundwater quality. 2.8 Pollution risk assessment and prevention. 2.9 Planning the well scheme. Chapter 3 An introduction to well and borehole design. 3.1 Drilled wells. 3.2 Handdug wells. 3.3 Infiltration galleries. 3.4 Radial collector wells. 3.5 Observation boreholes. 3.6 Exploration boreholes. 3.7 Pump selection. Chapter 4 Specific issues in well and borehole design. 4.1 Choice of construction materials. 4.2 Casing. 4.3 Screen. 4.4 Gravel pack design. 4.5 Hydraulic design. 4.6 Economic optimisation of well design. Chapter 5 Well and borehole construction. 5.1 Percussion drilling. 5.2 Rotary drilling. 5.3 Auger drilling. 5.4 Jetting. 5.5 Driving of Well-Points. 5.6 Manual construction. 5.7 Well development. 5.8 Wellhead completion. Chapter 6 Formation sampling and identification. 6.1 Observing the drilling process. 6.2 Collecting formation samples. 6.3 Description and analysis of drilling samples. 6.4 Downhole geophysical logging. 6.5 Downhole geophysical imaging. 6.6 Preparing a composite well log. Chapter 7 Well and borehole testing. 7.1 Objectives of test pumping. 7.2 Planning a well pumping test. 7.3 Types of pumping test. 7.4 Analysis of test pumping data from single wells. 7.5 Multiple wells. 7.6 The shape of the yield-drawdown curve: Deviations from the ideal response. 7.7 Interpretation of pumping and recovery test data in hard-rock aquifers. 7.8 Single borehole tests: slug tests. 7.9 Test pumping a major well field: the Gatehampton case study. 7.10 RecordKeeping. Chapter 8 Groundwater sampling and analysis. 8.1 Water quality parameters and sampling objectives. 8.2 Field determinations. 8.3 Collecting water samples from production wells. 8.4 Collecting water samples from observation boreholes. 8.5 Sample filtration, preservation and packaging. 8.6 Packing and labelling samples. 8.7 Quality control and record keeping. 8.8 Sample analysis. Chapter 9 Well monitoring and maintenance. 9.1 Factors affecting well system performance. 9.2 Monitoring well system performance. 9.3 Well maintenance and rehabilitation measures. 9.4 Well decommissioning. Chapter 10 Well and borehole records. 10.1 Well Archives. 10.2 Operational well databases. Appendix 1 Units and conversion tables. Appendix 1. Units and conversion tables. Appendix 2. World Health Organization drinking water guidelines. Appendix 3. FAO Irrigation water quality guidelines. References. Index.
- Kurztext
- Following on from the successful book 'Field Guide to Water Wells and Boreholes' by Lewis Clark from 1988, this new book aims to update and expand the content of the original whilst maintaining the practical emphasis. The book introduces additional theoretical detail and guidance relating to the siting, design, construction, operation and maintenance of water wells and boreholes. The book's main focus is on water wells that are used for drinking, industry, agriculture or other supply purposes, although other types of wells and boreholes are also covered, including boreholes for monitoring groundwater level and groundwater quality. The potential water well owner requires that: * the well (or group of wells) should have sufficient yield to meet demand; * the water quality should be fit for the particular purpose; * the well should be reliable, requiring little maintenance; * the well should be durable, with a design life suited to its purpose; * the construction and operating costs should not be excessive; * the well should not impact unacceptably on neighbouring wells or on the environment. These principles underpin the guidance given throughout this text. The book follows a 'life-cycle' approach to water wells, from identifying a suitable well site through to the successful implementation, operation and maintenance of the well, to its eventual decommissioning. The book will be of interest to final-year undergraduate students in geology and civil engineering; graduate students in hydrogeology, groundwater engineering, civil engineering and environmental sciences; research students who are involved in using data from wells as part of their research; professionals in hydrogeology, water engineering, environmental engineering and geotechnical engineering and aid workers and others involved in well projects.
- Autorenportrait
- Between them, the three authors (Bruce Misstear, David Banks, Lewis Clark)have worked extensively on groundwater projects in Europe, Africa, Middle East and Asia, and this international experience is reflected in the text and illustrations of this new book on Water Wells and Boreholes. Regarding previous publications, in brief, the three authors have "published widely on issues ranging from well design and testing, to the hydrogeology of hard-rock aquifers, to groundwater contamination investigation".