The Mechanical Behavior of Salt û Understanding of THMC Processes in Salt: Proceedings of the 6th Conference (SaltMech6), Hannover, Germany, 22û25 May 2007

by Wallner; Manfred

• ISBN13: 9780415443982
• ISBN10: 0415443989
• eBook ISBN(s): 9781351377157
• Format: Hardcover
• Copyright: 2007-05-10
• Publisher: CRC Press
• More Book Details

Summary

A unique opportunity to review the latest progress in an expanding area of interest: the Mechanical Behaviour of Salt. These Proceedings include over fifty papers and summaries describing the latest findings in ongoing studies from a number of research groups. For the 2007 conference, there was a particular focus on the understanding of thermal, mechanical, hydraulic and chemical coupled processes (THMC). Such processes are of specific interest when considering advanced problems in waste disposal, storage and mining. The book includes a number of themes: - laboratory and in-situ investigations modelling, e.g. derivation of constitutive equations - numerical computations and prediction of long-term behaviour - THMC processes in mining projects, storage and permanent disposal - case studies - geology - mining and storage applications and abandonment The International Conferences on the Mechanical Behaviour of Salt have a long tradition, being initiated in 1981 at The Pennsylvania State University, USA. The present conference, the sixth of the series, took place in Hannover, Germany, in May 2007. The conference brought together mining engineers, researchers, and university professors interested in the mechanical behaviour of salt, mostly from Europe and beyond.

Table of Contents

Geomechanical investigations on the integrity of geological barriers with special regard to laboratory tests	p. 3
Lode angle effects on the creep of salt	p. 9
Gas transport in dry rock salt - implications from laboratory investigations and field studies	p. 17
Excavation damaged zones in rock salt formations	p. 27
Investigations on damage and healing of rock salt	p. 33
The influence of humidity on microcrack processes in rock salt	p. 45
Petrophysical and rock-mechanical characterization of the excavation-disturbed zone in tachyhydrite-bearing carnallitic salt rocks	p. 53
Deformation of a halite-anhydrite sequence under bulk constriction: Preliminary results from thermomechanical experiments	p. 63
Experimental research on deformation and failure characteristics of laminated salt rock	p. 69
Comparison of advanced constitutive models for the mechanical behavior of rock salt - results from a joint research project - I. Modeling of deformation processes and benchmark calculations	p. 77
Comparison of advanced constitutive models for the mechanical behavior of rock salt - results from a joint research project - II. Numerical modeling of two in situ case studies and comparison	p. 89
The Composite Dilatancy Model: A constitutive model for the mechanical behavior of rock salt	p. 99
A model for rock salt, describing transient, stationary, and accelerated creep and dilatancy	p. 109
Constitutive models to describe the mechanical behavior of salt rocks and the imbedded weakness planes	p. 119
Fundamentals and first application of a new healing model for rock salt	p. 129
Crack-initiation and propagation in rock salt under hydromechanical interaction	p. 139
The effect of grain boundary water on deformation mechanisms and rheology of rocksalt during long-term deformation	p. 149
Stress relaxation experiments on compacted granular salt: effects of water	p. 159
Deformation mechanisms and rheology of Pre-cambrian rocksalt from the South Oman Salt Basin	p. 167
Evolution of a young salt giant: The example of the Messinian evaporites in the Levantine Basin	p. 175
Thermomechanical modelling of the behaviour of drifts in rock salt	p. 185
Modeling of hydro-mechanical behavior of rock salt in the near field of repository excavations	p. 195
Simulation of long term thermal, hydraulic and mechanical interaction between buffer and salt host rock	p. 201
Post-tests on thermo-mechanically compacted salt backfill	p. 209
In-situ measurements and 3-D model calculations of backfill compaction and EDZ development in waste disposal drifts in salt rock	p. 215
Long-term laboratory investigation on backfill	p. 223
Microstructural study of reconsolidated salt	p. 231
Mechanical and permeability properties of highly pre-compacted granular salt bricks	p. 239
The mechanical behavior of building materials based on the hydration of evaporite minerals	p. 251
Self sealing backfill (SVV) - A salt based material for constructing seals in salt mines	p. 259
Coupled modelling of the C: HM behaviour of self healing salt based backfill	p. 269
Reactive transport modelling in salt material based on Gibbs energy minimization	p. 277
Coupled modelling of physical/chemical retardation and transport of CO[subscript 2]/CH[subscript 4] for a backfilled salt rock repository	p. 285
Dynamic processes in salt rocks - a general approach for softening processes within the rock matrix and along bedding planes	p. 295
Performance of a mining panel over tachyhydrite in Taquari-Vassouras potash mine	p. 305
Monitoring of roof stability in salt mines	p. 315
Determination of mechanical homogeneous areas in the rock salt mass using creep properties for a classification scheme	p. 321
Modeling of strain softening and dilatancy in the mining system of the southern flank of the Asse II salt mine	p. 327
Three-dimensional geomechanical modelling of old mining rooms in the central part of the Bartensleben salt mine	p. 337
Geotechnical control of critical construction elements during the backfilling activities of the ERAM - Experience gained in using the observation method	p. 345
Effects of cavern shapes on cavern and well integrity for the strategic petroleum reserve	p. 353
Influence of effective stress on strain rate around the gas storing cavern	p. 363
Pillar deformation-induced surface subsidence in the Hengelo brine field, the Netherlands	p. 369
Execution and analysis of sonar surveys to support rock-mechanical evaluations	p. 377
Some aspects of the transient behavior of salt caverns	p. 383
THMC numerical simulation and a solution mining method for thin salt deposits	p. 391
Usability evaluation of the existing solution-mined caverns for gas storage	p. 399
The engineering thermal analysis for natural gas storage in deep salt formation	p. 401
Investigation on the long-term stability of gas storage in Jintan Salt Mine	p. 407
The Bernburg test cavern - in situ investigations and model studies on cavern abandonment	p. 417
Deep salt cavern abandonment: A pilot experiment	p. 427
Long-term behaviour of sealed brine-filled cavities in rock salt mass - A new approach for physical modelling and numerical simulation	p. 435
Deep salt-cavern abandonment	p. 445
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