Deformation of rock salt in openings mined for the disposal of radioactive wastes

Lomenick, T.F.; Bradshaw, R.L.

doi:10.1007/bf01247355

Cited by 27 publications

(8 citation statements)

References 4 publications

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“…tures is possible both for uniaxial and triaxial testing conditions. This type of testing has been performed for many rocks, including salt (Serdengecti and Boozer, 1961;Lomenick and Bradshaw, 1969).…”

Section: -10mentioning

confidence: 99%

“…The parabolic law is a purely empirical relationship taken from laboratory experiments. Misra and Murrell , 1965;Carter and Heard, 1970 : = AT Linear Law None Dolomite Sandstone Granodiorite Misra and Murrell , 1965 = AT" Parabolic Law Salt Lowenick and Bradshaw, 1965 andStarfield and McClain, 1973 1/ strain rate:…”

Section: Temperature Lawsmentioning

confidence: 99%

“…t Decrease in strength with rising temperature (Dreyer, 1977) t Strong decrease in thermal conductivity with rising temperature (Birch and Clark, 1940) • Strong increase in creep rates with increasing temperature (Lomenick and Bradshaw, 1965).…”

Section: Some Influences Of Temperature Upon Salt Properties Arementioning

confidence: 99%

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Review of geotechnical measurement techniques for a nuclear waste repository in bedded salt

1979

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This report presents a description of geotechnical measurement techniques that can provide the data necessary for safe development-i.e., location, design, construction, operation, decommissioning and abandonment--of a radioactive waste repository in bedded salt. Geotechnical data obtained by a diversity of measurement techniques are required during all phases of repository evolution.The techniques discussed in this report are grouped in the following categories:• Geologic, Geophysical and Geodetic • Rock Mechanics • Hydrologic, Hydrogeologic and Water Quality » ThermalThe major contribution of the report is the presentation of extensive tables that provide a review of available measurement techniques for each of these categories. The tables give th;? purpose of the measure ments, the applicable repository development stage, a brief description of the techniques, and references in which detailed discussions can be found. Where possible, the techniques are arranged in the order in which they would normally be used. Table 11 summarizes the geotechnical activ ities for each development stage, coordinated with a licensing schedule. The licensing process shown here is suppositional because regulatory pro cedures have not been clearly defined.The techniques are also discussed in the text to the extent necessary to describe the measurements and associated instruments, and to evaluate the applicability or limitations of the method. More detailed discussions of thermal phenomena, creep laws and geophysical methods are contained in the appendices; references to detailed explanations of measurement techniques and instrumentation are included throughout the report. -1 -A large number of techniques are listed. Some of them measure the desired properties directly, others must use an indirect approach tu calculate the necessary parameter, and in some cases, no truly applicable measuring technique exists. Recommendations are made where research and develop ment could provide improved or new methods to obtain necessary data. Geologic formations are never completely isotropic or homogeneous; professional judgment is always required to evaluate the validity of measurements and tD decide to what degree the data are representative of the general area. Interpretation, weighting and integration of data produced by all the various techniques will normally be required to develop a reliable model. Two measurement programs are required: exploration and monitoring. The exploratory program would be designed to determine the naturally exist ing geologic, geometric, thermal, and hydrologic configuration of a repository site, and to measure t 9 physical properties of the geologic materials at the site. The monitoring program would be designed to measure any changes in baseline conditions resulting from construction and operation of the repository in order to anticipate potential leakage or rock instability, and to assess the long-term performance of the repository. The summary below includes research findings for each pectechnical category. Geol...

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Section: -10mentioning

confidence: 99%

Section: Temperature Lawsmentioning

confidence: 99%

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Review of geotechnical measurement techniques for a nuclear waste repository in bedded salt

1979

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“…This model has been used with different empirical constants to model salt creep (Boresi and Deere, 1963;Lomenick and Bradshaw, 1969;Thoms et al, 1973). Reviews of the various simple functional forms ε 1 (t) and ε 2 (t) can assume, are found in Jaeger and Cook (1979), Hansen (1983), andJaeger et al (2007).…”

Section: Inelastic Deformation Effectsmentioning

confidence: 99%

Brine flow in heated geologic salt.

Kuhlman¹,

Malama²

2013

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This report is a summary of the physical processes, primary governing equations, solution approaches, and historic testing related to brine migration in geologic salt. Although most information presented in this report is not new, we synthesize a large amount of material scattered across dozens of laboratory reports, journal papers, conference proceedings, and textbooks.We present a mathematical description of the governing brine flow mechanisms in geologic salt. We outline the general coupled thermal, multi-phase hydrologic, and mechanical processes. We derive these processes' governing equations, which can be used to predict brine flow. These equations are valid under a wide variety of conditions applicable to radioactive waste disposal in rooms and boreholes excavated into geologic salt. 3We focus on the development of the governing equations with the intent to solve them analytically or in a simplified numerical manner, although we briefly summarize some available fully coupled three-dimensional numerical models and some historic modeling results. We non-dimensionalize the governing equations, and make some statements about importance of terms in the governing equations for physically plausible ranges of material property values.We summarize both in situ and laboratory brine migration testing in intact geologic salt, primarily focusing on tests performed under heated conditions relevant to high-level waste disposal. Supporting material is presented in appendices on relevant aspects of laboratory water content determination for bedded salt, the nature and evolution of the disturbed rock zone, and geologic salt permeability testing.In the final summary chapter, we provide a narrative description of the processes controlling both isothermal and heated brine inflow to excavations in geologic salt. Based upon our review, we recommend several potential in situ and laboratory tests, which could be conducted to increase understanding, parametrize numerical models, and confirm the importance of competing physical processes.4

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“…The behavior of salt rock under static loading has been thoroughly studied [3][4][5][6][7][8]. The effect of cyclic loading on the mechanical properties of geologic material has long been recognized.…”

Section: Literature Reviewmentioning

confidence: 99%