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Advanced Hydrogeology Malcolm Reeves Civil and Geological Engineering.

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Presentation on theme: "Advanced Hydrogeology Malcolm Reeves Civil and Geological Engineering."— Presentation transcript:

1 Advanced Hydrogeology Malcolm Reeves Civil and Geological Engineering

2 Topic Overview (Physical) 1.Review 2.Aquifer Characterization 3.The Basin Hydrogeologic Cycle 4.Hydraulic Testing 5.Groundwater as a Resource 6.Stress, Strain and Pore Fluids

3 Topic Overview (Chemical) 7.Solute Transport 8.Aqueous Geochemistry 9.Chemical Reactions 10.Equations of Mass Transport 11.Natural Systems 12.Contaminant Hydrogeology

4 1. Review What is hydrogeology? The hydrologic cycle. Saturated and unsaturated flow.

5 2.1 Aquifer Characterization Continental Deposits Marine Deposits Burial & Diagenesis Uplift & Erosion Tectonism & Fracturing

6 2.2 Mapping Regional Flow Systems Hydrostratigraphy Hydrogeological Cross Sections Potentiometric Surfaces Water Table Maps Recharge & Discharge Areas Surface Water Interactions

7 3. The Basin Hydrogeologic Cycle Topographic Driving Forces –Historic development –Conceptual models Recharge-Discharge Relations Implications –Reservoirs –Excavations –Slope Stability

8 4.1 Hydraulic Testing Basic Concepts of Well Hydraulics Theis Nonequilibrium Method –Type curves Modifications to Theis Equation –Cooper-Jacob Thiem Steady State Terminal Solution Hantush-Jacob Leaky Aquifer Method

9 4.2 Unconfined Aquifer Analysis Neumann Analysis Dewatering Delayed Yield from Storage

10 4.3 Single Borehole Tests Recovery Tests Drill Stem Tests Slug Tests Hvorslev Analysis Papadopoulos-Cooper Analysis

11 4.3 Well Performance Specific capacity Well efficiency Step draw-down tests Well yield estimation

12 4.4 Bounded Aquifers Partial Penetration Aquifer Boundaries Principle of Superposition –Image wells

13 4.5 Tests in Fractured Rock Response Decay Tests Single Fracture Analysis Packer Tests

14 5. Groundwater as a Resource Large Regional Flow Systems Well Yield Analysis Artificial Recharge Conjunctive Use Aquifer Management

15 6. Stress, Strain and Pore Fluids Deformable Porous Media –1D consolidation theory –Tidal (Loading) efficiency –Barometric efficiency Land Subsidence 3D Consolidation –Poroelasicity

16 7.1 Solute Transport Advection. Fickian model of dispersion Geostatistical model of dispersion.

17 7.2 Tracers and Tracer Tests Field experiments. Estimates from plumes. Environmental tracers.

18 8.1 Aqueous Geochemistry Equilibrium concepts. Reaction kinetics. Reaction rates.

19 8.2 Groundwater Chemical Analysis Routine analysis. Specialized analysis. Describing chemical data. –Piper plots –Stiff diagrams

20 9. Chemical Reactions Acid-base. Solution-precipitation. Complexation. Redox. Hydrolysis. Isotopic processes.

21 10. Equations of Mass Transport Diffusion. Advection-diffusion. Advection-dispersion. First-order kinetics. Equilibrium sorption. Boundary and initial conditions.

22 11. Natural Systems Mixing. Reactions in the unsaturated zone. Reactions in the saturated zone. Age dating groundwaters. Carbonate systems. Mineralization. Hydrocarbon migration and traps.

23 12. Contaminant Hydrogeology Sources of contamination. Solute plumes. Solute sampling. Indirect detection methods.

24 Review Project Topics Geophysical Methods Instrumentation Mine Inflows Bioremediation Deep Well Injection Waste Isolation Hydrogeological Mapping Health and Safety Issues

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