Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations: Vol. 1 Laboratory investigations
Saved in:
| Format: | Book |
|---|---|
| Language: | English |
| Published: |
Köln ; Garching bei München [u.a.]
GRS
2013
|
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | 331 S. Ill., graph. Darst. |
| ISBN: | 9783939355915 |
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Record in the Search Index
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| adam_text | TABLE OF CONTENTS
1 INTRODUCTION 1
1.1 THM PROCESSES IN THE NEARFIELD OF A HLW REPOSITORY 1
1.1.1 KEY PROCESSES DURING THE OPERATION PHASE 1
1.1.2 KEY PROCESSES DURING THE POST-CLOSURE PHASE 3
1.2 RESEARCH PROGRAMME AND OBJECTIVES 5
2 CLAY HOST ROCK 9
2.1. EXAMINATION OF STRESS CONCEPT 9
2.1.1 MICROSTRUCTURE AND POREWATER 10
2.1.2 EFFECTIVE STRESS AND SWELLING PRESSURE 13
2.1.3 EXPERIMENTAL OBSERVATIONS 18
2.1.4 CONCLUSIONS ON THE STRESS CONCEPT 36
2.2 SHORT-TERM MECHANICAL-HYDRAULIC BEHAVIOUR 37
2.2.1 CHARACTERIZATION OF SAMPLES 38
2.2.2 TESTING METHOD 38
2.2.3 ISOSTATIC COMPACTION 40
2.2.4 DEVIATORIC STRESS-STRAIN BEHAVIOUR 42
2.2.5 DAMAGE AND FAILURE STRENGTHS 48
2.2.6 DAMAGE INDUCED PERMEABILITY 52
2.2.7 POST-FAILURE BEHAVIOUR 55
2.2.8 CONCLUSIONS ON THE SHORT-TERM HYDROMECHANICAL BEHAVIOUR 59
2.3 LONG-TERM DEFORMATION BEHAVIOUR 60
2.3.1 CHARACTERIZATION OF SAMPLES 61
2.3.2 TESTING EQUIPMENT 61
2.3.3 CREEP UNDER UNIAXIAL LOADS 64
2.3.4 CREEP UNDER TRIAXIAL LOADS 70
2.3.5 CREEP MODEL 78
2.3.6 CONCLUSIONS ON THE CREEP BEHAVIOUR 82
2.4 RESPONSE TO MOISTURE CHANGE 83
2.4.1 FREE SWELLING AND SHRINKING 84
HTTP://D-NB.INFO/1046477897
2.4.2 SWELLING AND SHRINKING UNDER PARTLY-CONFINED CONDITIONS 89
2.4.3 INFLUENCE OF WATER CONTENT ON STRENGTH 93
2.4.4 CONCLUSIONS ON THE MOISTURE EFFECTS 96
2.5 THERMAL IMPACT 97
2.5.1 CHARACTERIZATION OF SAMPLES 98
2.5.2 TESTING METHODS 100
2.5.3 THERMAL DEFORMATION UNDER ISOSTATIC STRESSES 104
2.5.4 THERMAL DEFORMATION UNDER DEVIATORIC STRESSES 109
2.5.5 TEMPERATURE INFLUENCE ON STRENGTH 114
2.5.6 THERMAL IMPACT ON BOREHOLE STABILITY 116
2.5.7 CONCLUSIONS ON THE THERMAL IMPACT 122
2.6 SELF-SEALING OF FRACTURES 123
2.6.1 SEALING OF FRACTURES UNDER COMPRESSION 124
2.6.2 WATER-ENHANCED SEALING OF FRACTURES 136
2.6.3 THERMAL IMPACT ON THE SEALING OF FRACTURES 146
2.6.4 CONCLUSIONS ON THE SEALING OF FRACTURES 151
3 CLAYSTONE-BASED BACKFILL AND SEALING MATERIALS 153
3.1 OBJECTIVES 153
3.2 TESTING MATERIALS 155
3.3 COMPACTION AND PERMEABILITY OF CRUSHED CLAYSTONE BACKFILL 156
3.3.1 SAMPLE PREPARATION AND TESTING METHOD 156
3.3.2 RESULTS 159
3.3.3 RELATIONSHIPS OF MEAN STRESS - POROSITY - PERMEABILITY 170
3.4 SEALING PROPERTIES OF COMPACTED CLAYSTONE-BENTONITE MIXTURES 173
3.4.1 COMPRESSIBILITY 173
3.4.2 WATER RETENTION 176
3.4.3 WATER SATURATION 181
3.4.4 SWELLING CAPACITY 186
3.4.5 WATER PERMEABILITY 192
3.4.6 THERMAL CONDUCTIVITY 194
3.5 CONCLUSIONS ON CLAYSTONE-BASED BACKFILL/SEALING MATERIALS 201
4 SUMMARY AND CONCLUSIONS 203
4.1 OBJECTIVES AND SCOPE OF THE INVESTIGATIONS 203
4.2 THE THM BEHAVIOUR OF CLAY ROCKS 205
4.3 GEOTECHNICAL PROPERTIES OF CLAYSTONE-BASED BACKFILL/SEALING
MATERIALS... 209
ACKNOWLEDGEMENT 213
REFERENCES 215
LIST OF TABLES 225
LIST OF FIGURES 227
APPENDIX
A RESULTS OF SWELLING PRESSURE AND STRAIN TESTS ON CLAYSTONE 242
B RESULTS OF DEFORMATION AND DAMAGE TESTS ON CLAYSTONE 261
B.1 BASIC CHARACTERISTIC OF THE FIRST GROUP COX SAMPLES BEFORE TRIAXIAL
COMPRESSION TESTING 262
B.2 MEASURED DATA OF DEFORMATION, GAS PERMEABILITY, ULTRASONIC WAVE
AMPLITUDE AND VELOCITY DURING TRIAXIAL COMPRESSION TESTS 263
B.3 ELASTIC PARAMETERS, STRENGTHS AND PERMEABILITY VALUES DETERMINED ON
THE COX SAMPLES BY DEVIATORIC LOADING 286
B.4 RESULTS OF BRAZILIAN TENSILE TESTS ON COX SAMPLES 287
B.5 5RESULTS OF POST-FAILURE TESTS ON COX SAMPLES 288
C RESULTS OF LONG-TERM CREEP TESTS ON CLAYSTONE 291
C.1 FUNDAMENTAL PROPERTIES AND PICTURES OF COX AND OPA SAMPLES 291
C.2 UNIAXIAL CREEP CURVES OF.THE COX AND OPA SAMPLES 293
D RESULTS OF UNIAXIAL COMPRESSION TESTS ON CLAYSTONE AS A FUNCTION
OF WATER CONTENT 305
E RESULTS OF THERMAL-MECHANICAL TESTS ON CLAYSTONE 310
E.1 RESULTS OF THERMAL EXPANSION TESTS ON A COX SAMPLE UNDER ISOSTATIC
CONFINING STRESSES 313
E.2 RESULTS OF THERMAL DEFORMATION TESTS ON COX SAMPLES UNDER DEVIATORIC
CONFINING STRESSES 318
F WATER UPTAKE AND FREE SWELLING OF CLAYSTONE-BENTONITE MIXTURES.... 327
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| indexdate | 2024-07-10T01:16:47Z |
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| isbn | 9783939355915 |
| language | English |
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| spelling | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations Vol. 1 Laboratory investigations Chun-Liang Zhang ... Köln ; Garching bei München [u.a.] GRS 2013 331 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Zhang, Chun-Liang Sonstige oth (DE-604)BV042264813 1 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027702505&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations |
| title | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations |
| title_auth | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations |
| title_exact_search | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations |
| title_full | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations Vol. 1 Laboratory investigations Chun-Liang Zhang ... |
| title_fullStr | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations Vol. 1 Laboratory investigations Chun-Liang Zhang ... |
| title_full_unstemmed | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations Vol. 1 Laboratory investigations Chun-Liang Zhang ... |
| title_short | Thermo-hydro-mechanical processes in the nearfield around a HLW repository in argillaceous formations |
| title_sort | thermo hydro mechanical processes in the nearfield around a hlw repository in argillaceous formations laboratory investigations |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027702505&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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