Holdings: Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities

Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities: Project REPOPERM - phase 2

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Bibliographic Details
Main Author:	Kröhn, Klaus-Peter (Author)
Format:	Book
Language:	German
Published:	Köln ; Garching b. München ; Berlin ; Braunschweig GRS February 2017
Series:	GRS 450
Subjects:	Forschungsbericht
Online Access:	Inhaltsverzeichnis Inhaltsverzeichnis
Item Description:	Literaturverzeichnis Seite 201-209. - Förderkennzeichen BMWi 02 E 10740
Physical Description:	XVIII, 219 Seiten Illustrationen, Diagramme 30 cm 1 CD-ROM (12 cm)
ISBN:	9783946607328

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MARC


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adam_text	TABLE OF CONTENTS ACKNOWLEDGEMENT............................................................................................... I ABSTRACT................................................................................................................III ZUSAMMENFASSUNG............................................................................................IX 1 INTRODUCTION......................................................................................................... 1 2 EXPERIMENTAL INVESTIGATIONS ............................................................................. 7 2.1 EXAMINING THE POROSITY IN RELEVANT, PAST EXPERIMENTS ................................. 7 2.2 INFLUENCE OF THE SIEVE LINE ON COMPACTION BEHAVIOUR .................................. 10 2.3 TRIAXIAL COMPACTION FEST WITH DRY MATERIAL AT LOW POROSITIES ....................... 12 2.4 INFLUENCE OF HUMIDITY ON COMPACTION............................................................16 2.4.1 STRAIN-RATE CONTROLLED OEDOMETER TESTS...............................................................16 2.4.2 STRESS-CONTROLLED UNIAXIAL LONG-TERM COMPACTION...............................................23 2.4.2.1 TEST PRINCIPLE........................................................................................................ 23 2.42.2 TEST EQUIPMENT AND TEST SET-UP......................................................................... 24 2.42.3 EXECUTION............................................................................................................ 25 2.4.2.4 POST-TEST INVESTIGATION........................................................................................27 2.4.2.5 RESULTS................................................................................................................ 28 2.4.26 CONCLUSIONS.......................................................................................................... 36 2.4.3 TRIAXIAL COMPACTION IN AN AUTOCLAVE...................................................................37 2.4.3.1 TEST PRINCIPLE AND SET-UP..................................................................................... 37 24.3.2 PREPARATION............................................................................................................39 2.4.33 TEST 1 ....................................................................................................................39 2.4.3.4 TEST 2 ....................................................................................................................40 2.4.4 COMPACTION IN A HUMID ATMOSPHERE..................................................................43 2.4.4.1 TEST SET-UP AND PROCEDURE..................................................................................43 2.4.42 RESULTS..................................................................................................................46 2.4.5 ADSORPTION OF WATER TO SALT IN A HUMID ATMOSPHERE .......................................... 49 2.4.5.1 TEST DESCRIPTION....................................................................................................49 2.4.52 RESULTS..................................................................................................................50 2.4.5.3 INTERPRETATION........................................................................................................52 2.4.5.4 CONCLUSIONS.......................................................................................................... 56 2.5 PERMEABILITY ASSOCIATED WITH LOW POROSITY .................................................... 57 2.5.1 D-A-025 UNIAXIAL PERMEAMETER TEST WITH BRINE .................................................. 57 2.5.2 PERMEABILITY TESTE WITH GAS (NITROGEN)................................................................ 59 2.5.2.1 BACKGROUND, TEST APPARATUS AND SPECIMENS ...................................................... 59 2.5.2 2 RESULTS OF TESTE ON DRY MATERIAL (TEST PHASE 1)................................................. 62 2.5.2.3 RESULTS FROM WET MATERIAL (TEST PHASE 2 ) ......................................................... 66 2.5.2.4 RESULTS WITH DRIED MATERIAL (TEST PHASE 3).........................................................70 2 . 5 . 2.5 PERMEABILITY TEST ON WET COMPACTED MATERIAL .................................................. 71 2.5.2.6 EVALUATION OF THE PERMEABILITY TESTE WITH MOISTURE.............................................75 2.6 CONSTITUTIVE RELATIONS FOR TWO-PHASE FLOW ..................................................... 78 2.6.1 INTRODUCTION..........................................................................................................78 2.6.2 SCOPE................................................................................................................... 78 2.6.3 PREPARATIONS.........................................................................................................79 2.6.4 TEST PROCEDURE.................................................................................................... 80 2.6.5 TESTS.................................................................................................................... 81 2.6.6 CHECK OF SINGLE-PHASE PERMEABILITIES................................................................ 84 2.6.7 COMPILATION OF CRS FOR ALL TESTE..........................................................................87 2.6.8 FITTING A BROOK-COREY APPROACH TO THE DATA ...................................................... 88 2.6.9 SUMMARY AND DISCUSSION................................................................................... 90 2.7 MICROSTRUCTURAL INVESTIGATIONS........................................................................94 2.7.1 THIN SECTION ANALYSES..........................................................................................94 2.7.2 COMPUTER TOMOGRAPHIC ANALYSES......................................................................100 2.7.2.1 RESULTS.................................................................................................................101 2 . 7 . 2.2 CRITICAL POROSITY....................................................................................................109 2.7.23 DISCUSSION........................................................................................................... 110 3 BASICS FOR NUMERICAL MODELLING OF COMPACTING CRUSHED SALT .................... 112 3.1 SCOPE................................................................................................................ 112 3.2 PHENOMENOLOGY AND PHYSICS RELATED TO CRUSHED SALT COMPACTION ........ 113 3.2.1 COMPACTION BY CREEP OF SALT............................................................................. 113 3.2.2 EFFECT OF GRAIN REARRANGEMENT..........................................................................116 3.2.3 HUMIDITY ENHANCED COMPACTION....................................................................... 117 3.2.4 PERMEABILITY...................................................................................................... 117 3.2.5 DISSOLUTION AND PRECIPITATION OF SA LT.................................................................119 3.3 DEVELOPMENT/DEFINITION AND COMPARISON OF MATERIAL MODELS ................... 120 3.3.1 ELASTIC BEHAVIOUR...............................................................................................120 3.3.2 CREEP.................................................................................................................121 3.3.3 GRAIN REARRANGEMENT DUE TO FRACTURING.............................................................126 3.3.4 HUMIDITY CREEP..................................................................................................129 3.3.5 COMPARISON OF CREEP RATES...............................................................................131 3.3.6 FURTHER CONSIDERATIONS ON BEHAVIOUR OF CRUSHED SALT AND THE MATERIAL LAWS. 136 3.3.7 SUMMARY........................................................................................................... 138 3.4 BENCHMARK CALCULATIONS AND PARAMETER IMPROVEMENT .............................. 140 3.4.1 CALCULATION OF EXPERIMENTAL BOUNDS ON OEDOMETRIC COMPACTION TEST RESULTS 140 3.4.2 BACK CALCULATION OF THE LONG-TERM COMPACTION TEST..........................................141 3.4.3 PARAMETER IMPROVEMENT FOR DRY AND WET COMPACTION OF CRUSHED SALT...........142 3.4.3.1 OBJECTIVES AND SCOPE ........................................................................................ 142 3.4.3.2 MODEL DESCRIPTION...............................................................................................143 3.4.3.3 RESULTS FROM THE GRS-MODEL............................................................................. 146 3.4.3.4 RESULTS FROM BGR-MODEL WITH IMPROVED PARAMETER SET...................................149 3.4.4 CONCLUSIONS....................................................................................................... 150 3.5 SCALING-RULES FOR CAPILLARY PRESSURE.............................................................. 151 3.5.1 MOTIVATION.......................................................................................................... 151 3.5.2 INTRODUCTION....................................................................................................... 152 3.5.3 SCALING-RULE AFTER LEVERETT................................................................................152 3.5.4 COMPARISON OF SCALING-RULES.............................................................................155 3.5.5 SUMMARY AND CONCLUSIONS...............................................................................163 3.6 APPLICATION OF DISCRETE ELEMENT CODES ....................................................... 166 4 THM-COUPIED MODEL CALCULATIONS.................................................................. 173 4.1 RELEVANT SCENARIOS AND BOUNDARY CONDITIONS............................................173 4.1.1 INTRODUCTORY REMARK.......................................................................................... 173 4.1.2 COMPONENTS OF A GENERIC REPOSITORY ................................................................. 173 4.1.3 CONCEPTUAL CONSIDERATIONS FOR BRINE INFLOW AT A DRIFT SEAL ............................... 175 4.2 INFLOW INTO THE DRIFT BACKFILL AT THE DRIFT SEAL ................................................. 180 4.2.1 OBJECTIVES AND SCOPE.........................................................................................180 4.2.2 MODEL DESCRIPTION.............................................................................................. 180 4.2.3 RESULTS............................................................................................................... 184 4.2.4 CONCLUSIONS........................................................................................................187 5 SUMMARY........................................................................................................... 189 5.1 SCOPE OF THE PROJECT........................................................................................189 5.2 RESULTS OF EXPERIMENTAL INVESTIGATIONS.......................................................190 5.3 RESULTS OF THEORETICAL INVESTIGATIONS...........................................................194 5.4 RESULTS OF MODEL CALCULATIONS.......................................................................195 6 CONCLUSIONS AND RECOMMENDATIONS............................................................ 197 REFERENCES........................................................................................................201 TABLE OF FIGURES................................................................................................ 211 LIST OF TABLES.................................................................................................... 217 CONTENTS OF ENCLOSED CD............................................................................... 218
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author	Kröhn, Klaus-Peter
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spelling	Kröhn, Klaus-Peter Verfasser aut Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities Project REPOPERM - phase 2 Klaus-Peter Kröhn (GRS) [und 10 weitere] Köln ; Garching b. München ; Berlin ; Braunschweig GRS February 2017 XVIII, 219 Seiten Illustrationen, Diagramme 30 cm 1 CD-ROM (12 cm) txt rdacontent n rdamedia nc rdacarrier GRS 450 Literaturverzeichnis Seite 201-209. - Förderkennzeichen BMWi 02 E 10740 (DE-588)4155043-2 Forschungsbericht gnd-content GRS 450 (DE-604)BV008889593 450 B:DE-101 application/pdf http://d-nb.info/1140500899/04 Inhaltsverzeichnis DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029929669&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis
spellingShingle	Kröhn, Klaus-Peter Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities Project REPOPERM - phase 2 GRS
subject_GND	(DE-588)4155043-2
title	Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities Project REPOPERM - phase 2
title_auth	Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities Project REPOPERM - phase 2
title_exact_search	Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities Project REPOPERM - phase 2
title_full	Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities Project REPOPERM - phase 2 Klaus-Peter Kröhn (GRS) [und 10 weitere]
title_fullStr	Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities Project REPOPERM - phase 2 Klaus-Peter Kröhn (GRS) [und 10 weitere]
title_full_unstemmed	Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities Project REPOPERM - phase 2 Klaus-Peter Kröhn (GRS) [und 10 weitere]
title_short	Mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities
title_sort	mechanical and hydraulic behaviour of compacting crushed salt backfill at low porosities project repoperm phase 2
title_sub	Project REPOPERM - phase 2
topic_facet	Forschungsbericht
url	http://d-nb.info/1140500899/04 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029929669&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
volume_link	(DE-604)BV008889593
work_keys_str_mv	AT krohnklauspeter mechanicalandhydraulicbehaviourofcompactingcrushedsaltbackfillatlowporositiesprojectrepopermphase2

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