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Performance Assessment in Early Phases of the Repository Design Process
Assessments of post-closure performance are an integral part of the design process for a repository for high-level nuclear waste. They provide input to the establishment of design requirements...

Design Considerations for the Yucca Mountain Project Site Characterization
The Site Characterization Facilities (SCF) to be located in volcanic tuff at Yucca Mountain is a challenge to manage, design, and construct. This challenge is a result of a number of factors....

Application of QA Grading to Yucca Mountain Site Characterization Project Items and Activities
Grading is the act of selecting the quality assurance (QA) measures necessary to develop and maintain confidence in the quality of an item or activity. The list of QA measures from which...

Design Reviews From a Regulatory Perspective
This paper presents views on the role of the licensing engineer in the design process with specific emphasis on design reviews and the automated information management tools that support...

Controlling the Description of a High-Level Radioactive Waste Isolation System
Control of large, complex, regulation-driven programs using traditional management methods has not been wholly effective. What is needed is a rigorous yet flexible method that is amenable...

Strain Distribution in Fault Zones and Fluid Flow
Field and laboratory studies have shown that mechanical shearing in fault zones produces a repeatable fabric that changes with increasing shear strain. In the brittle field of mechanical...

Computer-Assisted Geometric and Kinematic Analysis of Subsurface Faulting in the Vicinity of Yucca Mountain, Nevada, Using Balanced Geologic Cross Sections
Computer-assisted geological cross section balancing methods are used in the geometric and kinematic analysis of subsurface structures in the vicinity of Yucca Mountain, Nevada, including...

Interpretation and Modelling Process of Bedrock Structures for Site Evaluation in Finland
The repository site for the final disposal of spent nuclear fuel in Finland will be selected by the end of the year 2000. Preliminary site investigations have been made in five areas since...

Mechanical Anisotropy of the Yucca Mountain Tuffs
Three series of measurements were performed on oriented cores of several Yucca Mountain tuffs to determine the importance of mechanical anisotropy in the intact rock. Outcrop and drillhole...

Application of Discrete Feature Analysis to Repository Characterization
Rock mass heterogeneity plays an important role in the hydrologic and mechanical behavior of radioactive waste repositories. This heterogeneity is, in turn, strongly influenced by the...

Assessment of Fracture-Sampling Techniques for Laboratory Tests on Core
As part of the site characterization work to be done at Yucca Mountain in Nye County, Nevada, a candidate site for the first mined-geologic repository for high-level nuclear waste, laboratory...

How Much Must the Geologic Barrier Contribute to Safe HLW Disposal?
As a prerequisite of a potential repository site, it is important to assess the role of each system component in providing safety and, in particular, to establish the specific geological...

Yucca Mountain Site Characterization Project Waste Package Plan
The goal of the U.S. Department Of Energy's (DOE) Yucca Mountain Site Characterization Project (YMP) waste package program is to develop, confirm the effectiveness of, and...

High-Level Waste Disposal Regulations: Time for a Change?
Major developments since EPA's high-level radioactive waste disposal regulations were promulgated challenge the validity of some of the assumptions underlying these regulations....

Human Intrusion Scenarios in Nuclear Waste Repository Evaluations
When promulgated, the Environmental Protection Agency (EPA) High Level and Transuranic Waste Standard (40 CFR 191) is expected to require consideration of human intrusion into a nuclear...

Gaseous Release of Carbon-14: Why the High Level Waste Regulations Should be Changed
The high-level nuclear waste regulations pertaining to gaseous release of carbon-14 from a repository should be changed to allow greater release, for several reasons. Some of them are...

Characterization of Spent Nuclear Fuel and High-Level Radioactive Waste Glass for Hazardous Components
The Department of Energy's (DOE) responsibility to manage the nation's high-level radioactive waste and spent nuclear fuel requires compliance with a number of...

The Development Process for Unique Underground Equipment for Waste Handling
The Department of Energy (DOE) is currently planning to site, construct, and operate a geologic repository at Yucca Mountain, Nevada, for the disposal of high-level nuclear waste (HLW)....

Design and Operating Criteria of the French Deep Repository for High Level Radioactive Waste
The design and operating criteria of the French geologic repository for high level radioactive waste (HLW) were selected for their contribution to operational and long-term safety, as...

Disposal of Spent HTR Fuel Elements
The emplacement of spent fuel elements from high-temperature reactors (HTR) in deep vertical boreholes in a salt repository is one favorable technique for the disposal of these wastes...

 

 

 

 

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