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Geophysical Testing of Rock and Its Relationship to Physical Properties
| Category | Uncategorized |
|---|---|
| Pages | 190 |
| Tags | data inversion methods testing using |
| Description | "Geophysical Testing of Rock and Its Relationship to Physical Properties" by Khiem T. Tran, Dennis R. Hiltunen, Ariel I. Sarno, and Nick HudymaUniversity of Florida | February 2011 | ISBN: n/a | 190 pages | PDF | 4 MB Testing techniques were designed to characterize spatial variability in geotechnical engineering physical parameters of rock formations. Standard methods using seismic waves, which are routinely used for shallow subsurface investigation, have limitations in characterizing challenging profiles at depth that include low-velocity layers and embedded cavities. This research focuses on overcoming these limitations by developing two new methods using both sensitive data and a global inversion scheme. • | • TABLE OF CONTENTSINTRODUCTION 1.1 Problem Statement 1.2 Objectives 1.3 Scope 1.4 Organization of Report SITE CHARACTERIZATION METHODS USING SEISMIC WAVES 2.1 Seismic Waves 2.2 Site Characterization Methods Using Seismic Waves 2.2.1 Goals of Seismic Wave Methods2.2.2 Borehole Methods 2.2.3 Surface Methods 2.3 Overview of the Surface Methods 2.3.1 Methods Using Surface Travel Times 2.3.2 Methods Using Surface Wave Dispersion2.4 Limitations of the Standard Methods Using Seismic Waves 2.4.1 Limitations due to Insensitivity of Data 2.4.2 Limitations due to Local Inversion Techniques2.5 Suggested Improvements 2.5.1 Improvements by Using Sensitive Data 2.5.2 Improvements by Employing Global Inversion Techniques INVERSION OF FIRST-ARRIVAL TIMES USING SIMULATED ANNEALING3.1 Introduction3.2 Methodology3.2.1 Forward Modeling 3.2.2 Optimization Method 3.3 Applications 3.3.1 Applications on Synthetic Data 3.3.2 Applications on Real Test Data 3.4 Chapter Summary INVERSION OF COMBINED BOREHOLE AND SURFACE TRAVEL TIMES 4.1 Introduction4.2 Inversion of Synthetic Data 4.2.1 Synthetic Model 14.2.2 Synthetic Model 24.2.3 Synthetic Model 34.3 Inversion of Real Test Data 4.3.1 Newberry Test Site4.3.2 Ft. McCoy Test Site 4.3.3 Dunedin Test Site4.4 Chapter Summary INVERSION OF FULL WAVEFORMS USING SIMULATED ANNEALING 5.1 Introduction5.2 Methodology5.2.1 Forward Modeling 5.2.2 Optimization Method 5.3 Applications 5.3.1 Applications on Synthetic Data5.3.2 Applications on Real Test Data 5.4 Chapter Summary GEOTECHNICAL ENGINEERING PARAMETER RELATIONSHIPS6.1 Literature Review 6.1.1 Weathering of Limestone 6.1.2 Classification of Weathering 6.1.3 The Effect of Weathering on Geotechnical Properties 6.2 Laboratory Testing6.2.1 Limestone Specimens6.2.2 Specimens 6.2.3 Weathering Classification6.2.4 Unit Weight Measurements6.2.5 Dynamic Testing 6.2.6 Static Testing6.3 Results 6.3.1 Coefficient of Determination Measurements 6.3.2 Introduction to the Developed Relationships 6.3.3 Unit Weight and Weathering 6.3.4 Comparison of Static Elastic Modulus and Unconfined Compressive Strength6.3.5 Static Properties and Unit Weight 6.3.6 Dynamic and Physical Properties 6.3.7 Dynamic and Static Properties 6.4 Chapter Summary CLOSURE7.1 Summary of Findings 7.1.1 Inversion Technique Using Travel Times7.1.2 Inversion Technique Using Full Waveforms 7.1.3 Rock Parameter Relationships 7.2 Conclusions7.3 RecommendationsLIST OF REFERENCES with TOC BookMarkLinks |
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