Preloading effects on dynamic sand behavior by resonant column tests:
Gespeichert in:
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
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2011
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| Online-Zugang: | kostenfrei Inhaltsverzeichnis |
| Beschreibung: | XIX, 216 S. Ill., graph. Darst. |
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Datensatz im Suchindex
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| adam_text | IMAGE 1
TABLE OF CONTENTS
PREFACE BY THE EDITOR ILL
ACKNOWLEDGMENTS IX
ABSTRACT XI
TABLE OF CONTENTS XIII
LIST OF FIGURES XVII
LIST OF TABLES XXV
1 INTRODUCTION 1
1.1 BACKGROUND 1
1.2 OBJECTIVES 2
1.3 ORGANIZATION 2
2 LITERATURE REVIEW 5
2.1 INTRODUCTION 5
2.2 FACTORS INFLUENCING SMALL-STRAIN SHEAR MODULUS 8
2.2.1 VOID RATIO 8
2.2.2 CONFINING PRESSURE 9
2.2.3 STRESS RATIO 12
2.2.4 GRAIN CHARACTERISTICS 14
2.2.5 DEGREE OF SATURATION.. 15
2.2.6 FREQUENCY OF LOADING 17
2.2.7 DURATION OF CONFINEMENT 17
2.2.8 PRESTRAINING 19
2.3 FACTORS INFLUENCING NONLINEAR DYNAMIC SOIL PROPERTIES 21
2.3.1 CONFINING PRESSURE 22
2.3.2 FREQUENCY OF LOADING 23
2.3.3 STRESS RATIO 24
2.3.4 NUMBER OF LOADING CYCLES 24
2.3.5 PRESTRAINING 26
2.4 SUMMARY 29
3 TESTING EQUIPMENT AND CALIBRATION 31
3.1 INTRODUCTION 31
3.2 DETAILS OF RESONANT COLUMN APPARATUS 31
3.2.1 PROCEDURE OF RESONANT COLUMN TEST 32
3.2.2 DRIVE SYSTEM 33
BIBLIOGRAFISCHE INFORMATIONEN HTTP://D-NB.INFO/1012490939
DIGITALISIERT DURCH
IMAGE 2
XIV TABLE OF CONTENTS
3.2.3 ROTATION MONITORING 35
3.2.4 CONFINING CHAMBER AND CELL PRESSURE 36
3.3 RESONANT COLUMN TEST 36
3.3.1 SHEAR MODULUS 36
3.3.2 DAMPING RATIO 38
3.3.3 SHEARING STRAIN 40
3.4 TORSIONAL SHEAR TEST 42
3.5 BENDER ELEMENT TEST 43
3.6 DRIVE SYSTEM CALIBRATION FOR RESONANT COLUMN TEST 45
3.6.1 THEORY BACKGROUND 46
3.6.2 CALIBRATION BARS AND WEIGHTS 47
3.6.3 TESTING RESULTS 49
3.6.4 MASS POLAR MOMENT OF INERTIA OF DRIVE SYSTEM 52
3.6.5 DISCUSSION 54
3.6.6 CALIBRATION PROCEDURE 55
3.7 TORQUE CALIBRATION FOR TORSIONAL SHEAR TEST 58
3.7.1 THEORY BACKGROUND 58
3.7.2 EFFECT OF TORSIONAL STIFFNESS 59
3.7.3 EFFECT OF INPUT VOLTAGE 60
3.7.4 CALIBRATION PROCEDURE 61
3.8 SUMMARY 63
4 MATERIALS AND TESTING PROCEDURES 65
4.1 INTRODUCTION 65
4.2 PROPERTIES OF TESTING SANDS 65
4.3 SPECIMEN PREPARATION AND DEVIATION EVALUATION 67
4.3.1 TAMPING METHOD 67
4.3.2 RAINING METHOD 70
4.3.3 DIMENSION MEASUREMENT 70
4.3.4 DEVIATION IN DIMENSION MEASURING 71
4.4 TESTING SYSTEM INSTALLATION 74
4.5 TESTING PROCEDURES 77
4.5.1 CONFINING PRESSURE 77
4.5.2 SPECIMEN DENSITY 77
4.5.3 WATER CONTENT 78
4.5.4 SHEARING STRAIN AMPLITUDE 78
4.5.5 NUMBER OF CYCLES 78
4.5.6 PRELOADING STRESS AND FREQUENCY 78
4.5.7 EFFECTS OF PRESSURE RELEASE 79
4.5.8 ACCUMULATED AXIAL STRAIN 80
4.5.9 BENDER ELEMENT TEST 80
4.6 SUMMARY 80
IMAGE 3
XV
DYNAMIC PROPERTIES OF BERLIN SAND 81
5.1 INTRODUCTION 81
5.2 SMALL-STRAIN SHEAR MODULUS 81
5.2.1 EFFECT OF VOID RATIO 82
5.2.2 EFFECT OF CONFINING PRESSURE 83
5.2.3 EMPIRICAL EQUATION 85
5.2.4 EFFECT OF STRESS HISTORY 87
5.2.5 EFFECT OF CONFINEMENT DURATION 89
5.2.6 EFFECT OF WATER CONTENT 90
5.2.7 EFFECT OF SAMPLING TECHNIQUE 92
5.3 NONLINEARITY IN SHEAR MODULUS 93
5.3.1 EFFECT OF CONFINING PRESSURE 93
5.3.2 EFFECT OF VOID RATIO 98
5.3.3 EMPIRICAL MODELING 102
5.4 DAMPING PROPERTIES 107
5.4.1 EFFECT OF VOID RATIO 107
5.4.2 EFFECT OF CONFINING PRESSURE 112
5.4.3 EFFECT OF WATER CONTENT 114
5.5 COMPARISON OF RC AND BE TESTS 115
5.6 SUMMARY 118
PRELOADING EFFECTS ON DYNAMIC PROPERTIES OF SAND 119
6.1 INTRODUCTION 119
6.2 VOID RATIO DURING TESTING 119
6.2.1 EMPIRICAL EXPRESSION 119
6.2.2 VARIATION OF VOID RATIO WITH NUMBER OF CYCLES 123
6.3 CORRECTION OF SMALL-STRAIN SHEAR MODULUS 124
6.4 SMALL-STRAIN SHEAR MODULUS 129
6.4.1 EFFECT OF NUMBER OF CYCLES 129
6.4.2 EFFECT OF PRELOADING FREQUENCY 130
6.4.3 EFFECT OF PRELOADING RATIO 132
6.4.4 EFFECT OF SOIL DENSITY 135
6.4.5 EFFECT OF CONFINING PRESSURE 136
6.4.6 EFFECT OF RELOADING 138
6.4.7 EFFECT OF UNLOADING 143
6.4.8 EFFECT OF WATER CONTENT 151
6.4.9 MISCELLANEOUS EFFECTS 155
6.5 NONLINEAR DYNAMIC PROPERTIES 161
6.5.1 EFFECT OF PRELOADING FREQUENCY 161
6.5.2 EFFECT OF NUMBER OF CYCLES 164
6.5.3 EFFECT OF RELOADING 164
6.5.4 EFFECT OF UNLOADING 165
6.5.5 EFFECT OF WATER CONTENT 168
IMAGE 4
XVI TABLE OF CONTENTS
6.5.6 EFFECT OF PRESTRAINING 168
6.6 THEORETICAL INTERPRETATION 170
6.7 SUMMARY 173
7 CONCLUSIONS AND OUTLOOK 175
7.1 CONCLUSIONS 175
7.1.1 APPARATUS CALIBRATION 175
7.1.2 DYNAMIC PROPERTIES OF BERLIN SAND 175
7.1.3 PRELOADING EFFECTS ON DYNAMIC PROPERTIES OF SAND 176
7.2 OUTLOOK 177
BIBLIOGRAPHY 179
APPENDIX 187
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| spelling | Bai, Lidong Verfasser aut Preloading effects on dynamic sand behavior by resonant column tests vorgelegt von Lidong Bai 2011 XIX, 216 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Berlin, Techn. Univ., Diss., 2010 Schubmodul (DE-588)4317190-4 gnd rswk-swf Schwingungsbelastung (DE-588)4054001-7 gnd rswk-swf Sandboden (DE-588)4179052-2 gnd rswk-swf Strukturdämpfung (DE-588)4252766-1 gnd rswk-swf Prüfstand (DE-588)4209037-4 gnd rswk-swf Säule (DE-588)4178902-7 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Sandboden (DE-588)4179052-2 s Schwingungsbelastung (DE-588)4054001-7 s Schubmodul (DE-588)4317190-4 s Strukturdämpfung (DE-588)4252766-1 s Säule (DE-588)4178902-7 s Prüfstand (DE-588)4209037-4 s 1\p DE-604 Erscheint auch als Online-Ausgabe urn:nbn:de:kobv:83-opus-29280 https://nbn-resolving.org/urn:nbn:de:kobv:83-opus-29280 Resolving-System kostenfrei Volltext DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=021104515&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
| spellingShingle | Bai, Lidong Preloading effects on dynamic sand behavior by resonant column tests Schubmodul (DE-588)4317190-4 gnd Schwingungsbelastung (DE-588)4054001-7 gnd Sandboden (DE-588)4179052-2 gnd Strukturdämpfung (DE-588)4252766-1 gnd Prüfstand (DE-588)4209037-4 gnd Säule (DE-588)4178902-7 gnd |
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| title | Preloading effects on dynamic sand behavior by resonant column tests |
| title_auth | Preloading effects on dynamic sand behavior by resonant column tests |
| title_exact_search | Preloading effects on dynamic sand behavior by resonant column tests |
| title_full | Preloading effects on dynamic sand behavior by resonant column tests vorgelegt von Lidong Bai |
| title_fullStr | Preloading effects on dynamic sand behavior by resonant column tests vorgelegt von Lidong Bai |
| title_full_unstemmed | Preloading effects on dynamic sand behavior by resonant column tests vorgelegt von Lidong Bai |
| title_short | Preloading effects on dynamic sand behavior by resonant column tests |
| title_sort | preloading effects on dynamic sand behavior by resonant column tests |
| topic | Schubmodul (DE-588)4317190-4 gnd Schwingungsbelastung (DE-588)4054001-7 gnd Sandboden (DE-588)4179052-2 gnd Strukturdämpfung (DE-588)4252766-1 gnd Prüfstand (DE-588)4209037-4 gnd Säule (DE-588)4178902-7 gnd |
| topic_facet | Schubmodul Schwingungsbelastung Sandboden Strukturdämpfung Prüfstand Säule Hochschulschrift |
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