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From page 160...
... 160 APPENDIX C-3 CyDSS Testing – Remolded Specimen 1. Overview This appendix documents two types of advanced laboratory testing performed on remolded specimens of silty sand and clay: (i)
From page 161...
... 161 to eliminate possible system errors, the initial CyDSS testing (Test Series 1) was repeated.
From page 162...
... 162 3. Testing Devices and Specimen Preparation Techniques 3.1.
From page 163...
... 163 3.2. Specimen Preparation Techniques Specimens are prepared in the CyDSS cell.
From page 164...
... 164 Figure C-3. Shear Wave Velocity Measurement with Bender Elements – Test Log.
From page 166...
... 166 Table C-3. Specific Gravity and Void Ratio Soil Specimen Specific Gravity Void Ratio Silty Sand 2.68 0.96 Fat Clay 2.66 0.99 4.3.
From page 167...
... 167 Figure C-6. Input and Reflected Waves for (a)
From page 168...
... 168 The results of the shear wave velocity measurements on saturated soil (by means of bender elements; peak-to-peak method) are presented in Table C-7.
From page 170...
... 170 0.1% strain level at 10 cycles 0.316% strain level at 10 cycles 0.5% strain level at 10 cycles 0.5% strain level at 50 cycles Table C-8. Shear Stress – Strain Loops – Fat Clay at ' v = 28 kPa 0.01% strain level at 10 cycles 0.0316% strain level at 10 cycles 0.1% strain level at 10 cycles 0.316% strain level at 10 cycles - 1 - 0 .
From page 171...
... 171 0.5% strain level at 10 cycles 0.5% strain level at 50 cycles 6. CyDSS Test Series 1 (This Testing Series was Rej ected by GLA)
From page 172...
... 172 0.0316% Strain; Plot for 10 Cycles: (a)
From page 173...
... 173 The PWP plots shown above reveal that silty sand liquefies after approximately 10 cycles of shear strain equal to 0.5%. The corresponding ru = 0.91 and its ru*
From page 174...
... 174 0.1% strain level at 10 cycles 0.316% strain level at 10 cycles 0.5% strain level at 10 cycles 0.5% strain level at 50 cycles Table C-14. Shear Stress – Strain Loops – Fat Clay at ' v = 28 kPa (Repeated Tests)
From page 175...
... 175 0.5% strain level at 10 cycles 0.5% strain level at 50 cycles 7. CyDSS Test Series 2 (Repeat of Test Series 1)
From page 176...
... 176 0.0316% Strain; Plot for 10 Cycles: (a)
From page 177...
... 177 The PWP plots shown above reveal that silty sand liquefies after approximately 10 cycles of shear strain equal to 0.5%. The corresponding ru = 0.91 and its ru*
From page 178...
... 178 0.5% Strain; Plot for 10 Cycles: (a)

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