Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects

Thumbnail image of item number 1 in: 'Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects'.
Thumbnail image of item number 2 in: 'Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects'.
Thumbnail image of item number 3 in: 'Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects'.
Thumbnail image of item number 4 in: 'Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects'.
Showing 1-4 of 68 pages in this report.

PDF Version Also Available for Download.

Description

The purpose of this calculation is to provide a bounding estimate of how thermal-hydrological-mechanical (THM) behavior of rock in the region surrounding an emplacement drift in a Monitored Geologic Repository subsurface facility may affect the permeability of fractures in the rock mass forming the region. The bounding estimate will provide essential input to performance assessment analysis of the potential repository system. This calculation also supports the Near Field Environment Process Model Report (NFE PMR) and will contribute to Site Recommendation. The geologic unit being considered as a potential repository horizon at Yucca Mountain, Nevada lies within a fractured, densely welded ... continued below

Creation Information

Blair, S. June 28, 2000.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

The purpose of this calculation is to provide a bounding estimate of how thermal-hydrological-mechanical (THM) behavior of rock in the region surrounding an emplacement drift in a Monitored Geologic Repository subsurface facility may affect the permeability of fractures in the rock mass forming the region. The bounding estimate will provide essential input to performance assessment analysis of the potential repository system. This calculation also supports the Near Field Environment Process Model Report (NFE PMR) and will contribute to Site Recommendation. The geologic unit being considered as a potential repository horizon at Yucca Mountain, Nevada lies within a fractured, densely welded ash-flow tuff located in the Topopah Spring Tuff member of the Paintbrush Group. Fractures form the primary conduits for fluid flow in the rock mass. Considerable analysis has been performed to characterize the thermal-hydrologic (TH) behavior of this rock unit (e.g., CRWMS M&O 2000a, pp. 83-87), and recently the dual permeability model (DKM) has proved to be an effective tool for predicting TH behavior (CRWMS M&O 2000a). The DKM uses fracture permeability as a primary input parameter, and it is well known that fracture permeability is strongly dependent on fracture deformation (Brown. 1995). Consequently, one major unknown is how deformation during heating and cooling periods may change fracture permeability. Opening of fractures increases their permeability, whereas closing reduces permeability. More importantly, shear displacement on fractures increases their permeability, and fractures undergoing shear are likely to conduct fluids. This calculation provides a bounding estimate of how heating and cooling in the rock surrounding an emplacement drift and the resulting mechanical deformation may affect the fracture permeability of the rock.

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: CAL-NBS-MD-000002, Rev. 00
  • Grant Number: NA
  • DOI: 10.2172/893794 | External Link
  • Office of Scientific & Technical Information Report Number: 893794
  • Archival Resource Key: ark:/67531/metadc889173

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

About | Browse this Collection

What responsibilities do I have when using this report?

Digital Files

When

Dates and time periods associated with this report.

Creation Date

  • June 28, 2000

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

Description Last Updated

  • Dec. 8, 2016, 2:27 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 1
Total Uses: 8
More Statistics

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects'.
Thumbnail image of item number 2 in: 'Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects'.
Thumbnail image of item number 3 in: 'Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects'.
Thumbnail image of item number 4 in: 'Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Blair, S. Calculation of Permeability Change Due to Coupled Thermal-Hydrological-Mechanical Effects, report, June 28, 2000; Las Vegas, Nevada. (digital.library.unt.edu/ark:/67531/metadc889173/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.