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Managing discovery risks--A Tevatron case study

Description: To meet the increasing need for higher performance, Management of Fermi National Accelerator Laboratory has undertaken various projects to improve systems associated with the Tevatron high-energy particle collider located at Batavia, Illinois. One of the larger projects is the Tevatron Beam Position Monitor (BPM) system. The objective of this project is to replace the existing BPM electronics and software system that was originally installed during early 1980s, along with the original construct… more
Date: July 28, 2004
Creator: Banerjee, Bakul
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ground Control for Emplacement Drifts for LA

Description: The purpose of this calculation is to analyze the stability of repository emplacement drifts during the preclosure period, and to provide a final ground support method for emplacement drifts for the License Application (LA). The scope of the work includes determination of input parameter values and loads, selection of appropriate process and methods for the calculation, application of selected methods, such as empirical or analytical, to the calculation, development and execution of numerical m… more
Date: July 9, 2004
Creator: Sun, Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of Roof Bolting Requirements Based on In-Mine Bolter Drilling Progress Report

Description: A one-year non-cost extension has been granted for this project. In this quarter, the field, theoretical and programming works have been performed toward achieving the research goals set in the proposal. The main accomplishments in this quarter included: (1) laboratory tests have been conducted, (2) with the added trendline analysis method, the accuracy of the data interpretation methodology will be improved and the interfaces and voids can be more reliably detected, (3) method to use torque to… more
Date: April 15, 2004
Creator: Peng, Syd S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ground Control for Non-Emplacement Drifts for LA

Description: The purpose of this calculation is to analyze the stability of repository non-emplacement drifts during the preclosure period, and to provide a final ground support method for non-emplacement drifts for the License Application (LA). This calculation will provide input for the development of LA documents. The scope of this calculation is limited to the non-emplacement drifts including access mains, ramps, exhaust mains, turnouts, intersections between access mains and turnouts, and intersections… more
Date: February 26, 2004
Creator: Tang, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Longevity of Emplacement Drift Ground Support Materials for LA

Description: The purpose of this analysis report is to evaluate and document the inclusion or exclusion of the disruptive events features, events, and processes (FEPs) with respect to modeling used to support the total system performance assessment for license application (TSPA-LA). A screening decision, either ''Included'' or ''Excluded,'' is given for each FEP, along with the technical basis for screening decisions. This information is required by the U.S. Nuclear Regulatory Commission (NRC) at 10 CFR 63.… more
Date: September 16, 2003
Creator: Tang, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RESOLUTION STRATEGY FOR GEOMECHANICALLY-RELATED REPOSITORY DESIGN FOR THERMAL-MECHANICAL EFFECTS (RDTME)

Description: In September of 2000, the U.S. Nuclear Regulatory Commission (NRC) issued an Issue Resolution Status Report (NRC 2000). The Key Technical Issue (KTI) agreements on Repository Design and Thermal-Mechanical Effects (RDTME) were jointly developed at the Technical Exchange and Management Meeting held on February 6-8, 2001 in Las Vegas, Nevada. In that report, a number of geomechanically-related issues were raised regarding the determination of rock properties, the estimation of the impacts of geolo… more
Date: April 1, 2003
Creator: Board, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Roof Bolting Requirements Based on In-Mine Bolter Drilling Progress Report

Description: In this quarter, the field, theoretical and programming works have been performed toward achieving the research goals set in the proposal. The main accomplishments in this quarter included: (1) laboratory tests have been conducted, (2) with the added trendline analysis method, the accuracy of the data interpretation methodology will be improved and the interfaces and voids can be more reliably detected, (3) method to use torque to thrust ratio as indicator of rock relative hardness has also bee… more
Date: January 15, 2003
Creator: Peng, Syd S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

UNDERGROUNG PLACEMENT OF COAL PROCESSING WASTE AND COAL COMBUSTION BY-PRODUCTS BASED PASTE BACKFILL FOR ENHANCED MINING ECONOMICS

Description: This project has successfully demonstrated that the extraction ratio in a room-and-pillar panel at an Illinois mine can be increased from the current value of approximately 56% to about 64%, with backfilling done from the surface upon completion of all mining activities. This was achieved without significant ground control problems due to the increased extraction ratio. The mined-out areas were backfilled from the surface with gob, coal combustion by-products (CCBs), and fine coal processing wa… more
Date: June 1, 2002
Creator: Chugh, Y.P.; Biswas, D. & Deb, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ground Control System Description Document

Description: The Ground Control System contributes to the safe construction and operation of the subsurface facility, including accesses and waste emplacement drifts, by maintaining the configuration and stability of the openings during construction, development, emplacement, and caretaker modes for the duration of preclosure repository life. The Ground Control System consists of ground support structures installed within the subsurface excavated openings, any reinforcement made to the rock surrounding the … more
Date: July 31, 2001
Creator: Loros, Eric
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Subsurface Ventilation System Description Document

Description: The Subsurface Ventilation System supports the construction and operation of the subsurface repository by providing air for personnel and equipment and temperature control for the underground areas. Although the system is located underground, some equipment and features may be housed or located above ground. The system ventilates the underground by providing ambient air from the surface throughout the subsurface development and emplacement areas. The system provides fresh air for a safe work en… more
Date: July 25, 2001
Creator: Loros, Eric
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Waste Emplacement/Retrieval System Description Document

Description: The Waste Emplacement/Retrieval System transports Waste Packages (WPs) from the Waste Handling Building (WHB) to the subsurface area of emplacement, and emplaces the WPs once there. The Waste Emplacement/Retrieval System also, if necessary, removes some or all of the WPs from the underground and transports them to the surface. Lastly, the system is designed to remediate abnormal events involving the portions of the system supporting emplacement or retrieval. During emplacement operations, the s… more
Date: July 25, 2001
Creator: Loros, Eric
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Impact of Rock Bolts on Seepage

Description: Characterization of seepage into drifts in unsaturated fractured tuff is a key factor for assessing the long-term viability of the proposed high level nuclear waste repository at Yucca Mountain. Rock bolts are among the methods proposed for ground control in the emplacement drifts. They may provide a conduit whereby percolating water that would otherwise bypass the drift will seep into the drift. The objective of this study is to assess the impact that the use of rock bolts may have on seepage.… more
Date: June 1, 2001
Creator: Ahlers, F. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Longevity of Emplacement Drift Ground Support Materials

Description: The purpose of this analysis is to evaluate the factors affecting the longevity of emplacement drift ground support materials and to develop a basis for the selection of materials for ground support that will function throughout the preclosure period of a potential repository at Yucca Mountain. REV 01 ICN 01 of this analysis is developed in accordance with AP-3.10Q, Analyses and Models, Revision 2, ICN 4, and prepared in accordance with the Technical Work Plan for Subsurface Design Section FY 0… more
Date: May 30, 2001
Creator: Tang, D. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Busted Butte Phase II Excavation Analysis

Description: The purpose of this analysis is to provide an engineering excavation and ground support design for the Busted Butte phase II mine back. The analysis will apply engineering practices and previous proven design methods for pillar design and ground support in accordance with applicable Integrated Safety Management principles and functions. The scope of this analysis is limited to the Busted Butte Test Facility. The intended use of this analysis is to provide testing excavation boundaries, ground s… more
Date: November 29, 2000
Creator: Keifer, J.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Subsurface Ventilation System Description Document

Description: The Subsurface Ventilation System supports the construction and operation of the subsurface repository by providing air for personnel and equipment and temperature control for the underground areas. Although the system is located underground, some equipment and features may be housed or located above ground. The system ventilates the underground by providing ambient air from the surface throughout the subsurface development and emplacement areas. The system provides fresh air for a safe work en… more
Date: October 12, 2000
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Waste Emplacement/Retrieval System Description Document

Description: The Waste Emplacement/Retrieval System transports Waste Packages (WPs) from the Waste Handling Building (WHB) to the subsurface area of emplacement, and emplaces the WPs once there. The system also, if necessary, removes some or all of the WPs from the underground and transports them to the surface. Lastly, the system is designed to remediate abnormal events involving the portions of the system supporting emplacement or retrieval. During emplacement operations, the system operates on the surfac… more
Date: October 12, 2000
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ground Control for Emplacement Drifts for SR

Description: This analysis demonstrates that a satisfactory ground control system can be designed for the Yucca Mountain site, and provides the technical basis for the design of ground support systems to be used in repository emplacement and non-emplacement drifts. The repository ground support design was based on analytical methods using acquired computer codes, and focused on the final support systems. A literature review of case histories, including the lessons learned from the design and construction of… more
Date: April 7, 2000
Creator: Sun, Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Longevity of Emplacement Drift Ground Support Materials

Description: The purpose of this analysis is to evaluate the factors affecting the longevity of emplacement drift ground support materials and to develop a basis for selection of materials for ground support that will function throughout the preclosure period. The Development Plan (DP) for this analysis is given in CRWMS M&O (Civilian Radioactive Waste Management System Management and Operating Contractor) (1999a). The candidate materials for ground support are steel (carbon steel, ductile cast iron, ga… more
Date: January 7, 2000
Creator: Tang, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SUBSURFACE EMPLACEMENT TRANSPORTATION SYSTEM

Description: The objective of this analysis is to identify issues and criteria that apply to the design of the Subsurface Emplacement Transportation System (SET). The SET consists of the track used by the waste package handling equipment, the conductors and related equipment used to supply electrical power to that equipment, and the instrumentation and controls used to monitor and operate those track and power supply systems. Major considerations of this analysis include: (1) Operational life of the SET; (2… more
Date: November 22, 1999
Creator: Wilson, T. & Novotny, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TBV-322/TBD-325 RESOLUTION ANALYSIS: GEOTECHNICAL ROCK PROPERTIES

Description: The process of underground excavation design is being performed in several phases to satisfy the requirements of Yucca Mountain Site Characterization Project (YMP). These phases were conceptualized to satisfy increasingly focused requirements as the YMP progresses and more detailed site characterization data are acquired. At the time that initial design analyses were prepared, the rock mass parameters were derived from the exploratory core drillings, and as such their values were considered pre… more
Date: September 13, 1999
Creator: Mrugala, M. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CLASSIFICATION OF MGR GROUND CONTROL SYSTEM

Description: The purpose of this analysis is to document the Quality Assurance (QA) classification of the Monitored Geologic Repository (MGR) ground control system structures, systems and components (SSCs) performed by the MGR Safety Assurance Department. This analysis also provides the basis for revision of YMP/90-55Q, Q-List (YMP 1998). The Q-List identifies those MGR SSCs subject to the requirements of DOE/RW-0333PY ''Quality Assurance Requirements and Description'' (QARD) (DOE 1998).
Date: August 31, 1999
Creator: Garrett, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

South Ramp 3.01.X Area Ground Support Analysis

Description: The purpose of this analysis is to evaluate the stability and determine ground support requirements for the 3.01.X areas in the Exploratory Studies Facility (ESF) South Ramp. The 3.01.X area refers to the ESF tunnel portions that were constructed under Section 3.01.X of the ESF General Construction Specification (Reference 8.4). Four 3.01.X areas in the ESF Main Loop are covered in this analysis that extend from Station 60+15.28 to 60+49.22, 62+04.82 to 62+32.77, 75+21.02 to 75+28.38, and 76+63… more
Date: July 12, 1999
Creator: Bonabian, Saeed
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ECRB ALCOVE AND NICHE GROUND SUPPORT ANALYSIS

Description: The purpose of the analysis is to provide design bases for Enhanced Characterization of the Repository Block (ECRB) alcove and niche ground support drawings. The objective is to evaluate the ESF Alcove Ground Support Analysis (Ref 5.1) to determine if the calculations technically bound the ECRB alcoves and to address specific differences in the conditions and constraints.
Date: May 9, 1999
Creator: Keifer, J.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SUBSURFACE REPOSITORY INTEGRATED CONTROL SYSTEM DESIGN

Description: The purpose of this document is to develop preliminary high-level functional and physical control system architectures for the proposed subsurface repository at Yucca Mountain. This document outlines overall control system concepts that encompass and integrate the many diverse systems being considered for use within the subsurface repository. This document presents integrated design concepts for monitoring and controlling the diverse set of subsurface operations. The subsurface repository desig… more
Date: September 17, 1998
Creator: Fernado, C.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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