Technical Review of the Lined Rock Cavern Concept and Design ...

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Technical Review of the Lined Rock Cavern (LRC) Concept and Design Methodology vi 6.0 CONCLUSIONS 35 6.1 Summary and Observations of the Rock Mechanics Review 35 6.2 Judgement of the LRC Concept 36 6.2.1 Cavern Size 37 6.2.2 Cavern Geometry 37 6.2.3 Cavern Loading 37 6.2.4 Judgement 38 6.3 Recommendations 38 7.0 REFERENCES 39 APPENDIX A Selected LRC Review Documents APPENDIX B Derivation of Consistent Values of Tensile Strength and Material Toughness
Technical Review of the Lined Rock Cavern (LRC) Concept and Design Methodology vii List of Figures Page Figure 4-1 LRC Rigid-Cone Concept 8 Figure 4-2 Cone Angle versus Depth for Skallen Conditions 10 Figure 4-3 Conceptual View of the Log-Spiral Criterion 11 Figure 4-4 Sand Dilation Along Shear Zones in the Uplift Experiment [after Mandl, 1988, pp. 71-75] Figure 4-5 Conceptual View of the FLAC Soil-Anchor Model 13 Figure 4-6 Experimental Results of Soil-Anchor Pullout [after Vesi , 1971] and Results of the FLAC Soil-Anchor Model Figure 4-7 Results of the FLAC Soil-Anchor Model for Ko = 3 and Dilation Angle = 0° Figure 4-8 Results of the FLAC Soil-Anchor Model for Ko = 1 and Dilation Angle = 0° Figure 4-9 Conceptual FLAC Model for Evaluation of Ground Uplift 17 Figure 4-10 Cf -n versus Vertical Displacement of the Cavern Roof and Ground Surface Indicating an Uplift Factor-Of-Safety of 9 Figure 4-11 Conceptual FLAC Model of a Horizontal Section Through the Mid-Height of the LRC Figure 4-12 Predicted Rock-Mass Failure, Radial Wall Displacement, and Steel-Liner Strain for Isotropic In-Situ Stress Conditions of 4 MPa Figure 4-13 Predicted Rock-Mass Failure, Radial Wall Displacement, and Steel-Liner Strain for Anisotropic In-Situ Stress Conditions of 4 MPa and 8 MPa 12 14 15 15 18 20 22 22
Page 1 and 2: Technical Review of the Lined Rock
Page 5: Technical Review of the Lined Rock
Page 55 and 56: STORAGE OF GAS IN LINED SHALLOW ROC
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6 5 - e 4 e-= = -: 3 = e lrS . 01 =
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The minimum geological requirements
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12,00 10,00 8,00 6,00 Strain (per m
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REFERENCES Calmillder, A, Hahn, T.,
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A-I5 ffiGH PRESSURE STORAGE OF GAS
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Room 3 bas a 0.5 mm thick lining of
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cracks have developed despite a tan
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Concrete linin Transition concrete-
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PROBABILISTIC ROCK MASS CHARACTERIZ
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does not degenerate into a rough gu
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As the defomlation of the rock mass
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A-31 5 DISCUSSION AND CONCLUSIONS B
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Draft Technical Review of the Lined
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Technical Review of the Lined Rock Cavern Concept and Design ...

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