Construction Dewatering and Groundwater Control: New Methods and Applications

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 aswell 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 i dentify and analyze site–specific situations, and the modern tools available to control them.

Spis treści:
Groundwater in Construction.
1.1 Groundwater in the Hydrologic Cycle.
1.2 Origins of Dewatering.
1.3 Development of Modern Dewatering Technology.
THE GEOLOGY OF SOILS.
2.1 Geologic Time Frame.
2.2 Formation of Soils.
2.3 Mineral Composition of Soils.
2.4 Rivers.
2.5 Lakes.
2.6 Estuaries.
2.7 Beaches.
2.8 Wind Deposits.
2.9 Glaciers–The Pleistocene Epoch.
2.10 Rock.
2.11 Limestone and Coral.
2.12 Tectonic Movements.
2.13 Man–Made Ground.
Soils and Water.
3.1 Soil Structure.
3.2 Gradation of Soils.
3.3 Porosity, Void Ratio and Water Content.
3.4 Relative Density, Specific Gravity, and Unit Weight.
3.5 Capillarity and Unsaturated Flow.
3.6 Specific Yield and Specific Retention.
3.7 Hydraulic Conductivity.
3.8 Plasticity and Cohesion of Silts and Clays .
3.9 Unified Soil Classification System (ASTM D–2487).
3.10 Soil Descriptions.
3.11 Visual and Manual Classification of Soils.
3.12 Seepage Forces and Soil Stress.
3.13 Gravity Drainage of Granular Soils.
3.14 Drainage of Silts and Clays: Pore Pressure Control.
3.15 Settlement as a Result of Dewatering.
3.16 Preconsolidation.
3.17 Other Side Effects of Dewatering.
Hydrology of The Ideal Aquifer.
4.1 Definition of the Ideal Aquifer.
4.2 Transmissivity T.
4.3 Storage Coefficient Cs and Specific Yield .
4.4 Pumping from a Confined Aquifer.
4.5 Recovery Calculations.
4.6 The Unconfined or Water Table Aquifer.
Characteristics of Natural Aquifers.
5.1 Anisotropy: Stratified Soils.
5.2 Horizontal Variability.
5.3 Recharge Boundaries: Radius of Influence R0.
5.4 Barrier Boundaries.
5.5 Delayed Release from Storage.
Dewatering Design Using Analytical Methods.
6.1 Radial Flow to a Well in a Confined Aquifer.
6.2 Radial Flow to a Well in a Water Table Aquifer.
6.3 Radial Flow to a Well in a Mixed Aquifer.
6.4 Flow to a Drainage Trench from a Line Source.
6.5 The System as a Well: Equivalent Radius rs.
6.6 Radius of Influence Ro.
6.7 Hydraulic Conductivity K and Transmissivity T.
6.8 Initial Head H and Final Head h.
6.9 Partial Penetration.
6.10 Storage Depletion.
6.11 Specific Capacity of the Aquifer.
6.12 Cumulative Drawdowns or Superposition.
6.13 Capacity of the Well Qw.
6.14 Flow Net Analysis and the Method of Fragments .
6.15 Concentric Dewatering Systems.
6.16 Vertical Flow.
6.17 Gravel Tremie.
Groundwater Modeling using Numerical Methods.
7.1 Models in Dewatering Practice.
7.2 When to Consider a Numerical Model .
7.3 Principal Steps in Model Design and Application.
7.4 The Conceptual Model: Defining the Problem to be Modeled   .
7.5 Selecting the Program.
7.6 Introduction to MODFLOW.
7.7 Verification.
7.8 Calibration.
7.9 Prediction and Parametric Analyses.
7.10 Some Practical Modeling Problems.
7.11 2–D Model: Well System in a Water Table Aquifer.
7.12 Calibrating the Model .
7.13 3–D Model: Partial Penetration.
7.14 3–D Model: Vertical Flow.
7.15 3–D Model: Transient Analysis of a Progressive Trench Excavation.
7.16 3–D Model: Feasibility of Tunneling in a Stratified Aquifer with Proximate Recharge.
Monitoring.
8.1 Subsurface Information.
8.2 Ordinary Piezometers and True Piezometers.
8.3 Piezometer Construction.
8.4 Verification of Piezometer Performance.
8.5 Obtaining Data from Piezometers.
8.6 Pore Pressure Piezometers in Fine–grained Soils.
8.7 Direct Push Technologies for Piezometer Installation.
Pumping Tests.
9.1 When a Pumping test Is Advisable.
9.2 Planning the Test.
9.3 Design of the Pumping Well.
9.4 Piezometer Array.
9.5 Duration of Pumpdown and Recovery.
9.6 Pumping Rate.
9.7 Monitoring the Test .
9.8 Analysis of Pumping Test Data.
9.9 Tidal Corrections.
9.10 Well Loss.
9.11 Step Drawdown Tests.
9.12 Testing of Low Yield Wells .
9.13 Delayed Storage Release: Boulton Analysis.
Surface Hydrology.
10.1 Lakes and Reservoirs.
10.2 Bays and Ocean Beaches.
10.3 Rivers.
10.4 Precipitation.
10.5 Disposal of Dewatering Discharge.
10.6 Water from Existing Structures.
Geotechnical Investigation of Dewatering Problems.
11.1 Investigation Approach and Objectives.
11.2 Preliminary Studies and Investigations.
11.3 Borings and Test Pits.
11.4 In Situ Test Methods.
11.5 Piezometers and Observation Wells.
11.6 Borehole Seepage Tests for Evaluation of Hydraulic Conductivity.
11.7 Laboratory Analysis of Samples.
11.8 Chemical Tests of Groundwater.
11.9 Geophysical Methods.
11.10 Pumping Tests.
11.11 Permanent Effect of Structures on the Groundwater Body.
11.12 Investigation of Potential Side Effects of Dewatering.
11.13 Presentation in the Bidding Documents.
Pump Theory.
12.1 Types of Pumps Used in Dewatering.
12.2 Total Dynamic Head.
12.3 Pump Performance Curves.
12.4 Affinity Laws.
12.5 Cavitation and Net Positive Suction Head.
12.6 Engine Power.
12.7 Electric Power.
12.8 Vacuum Pumps.
12.9 Air Lift Pumping.
12.10 Testing of Pumps.
Groundwater Chemistry, Bacteriology, and Fouling of Dewatering Systems.
13.1 Types of Corrosion.
13.2 Corrosive Groundwater Conditions.
13.3 Dewatering in Corrosive Groundwater Conditions.
13.4 Incrustation.
13.5 Mineral Incrustation.
13.6 Biological Incrustation.
13.7 Dewatering Systems and Incrustation.
13.8 Field Evaluation of Well Fouling.
13.9 Rehabilitation and Maintenance for Incrustation.
13.10 Analysis of Groundwater.
Contaminated Groundwater.
14.1 Contaminants Frequently Encountered