Scour at a Bridge Over the Weldon River, Iowa
Contraction scour at the State Highway 2 bridge over the Weldon River in south-central Iowa was caused by a flood of record proportions on September 14 and 15, 1992. The peak discharge...
Cavitation Repair by Welding Without Gouging
Application of Fracture Mechanics Methodology to Assessment of Weld Defects in Offshore Platforms
This paper demonstrates an application of both deterministic and probabilistic fracture mechanics methods to assess weld defects in an offshore platform. The results of the assessment...
Homopolar Pulse Butt Welding of API 5L Line Pipe
Homopolar pulse welding (HPW) is a welding process that is being investigated as a means to rapidly join API line pipe, having particularly great potential for application in deepwater...
Critical Stresses in Pintle, Weldment and Top Head of Nuclear Waste Container
TBM Performance Prediction in Yucca Mountain Welded Tuff From Linear Cutter Tests
On-Orbit Chipless Cutting and Tube Welding in Space Station Freedom
Micro-gravity and strict environmental constraints of the laboratory, Habitation and other manned structures which comprise Space Station Freedom demand investigation into innovative processes...
Fatigue Strength of Welded Joints Under Broadband Loadings
Twelve welded high strength steel cruciform specimens were tested under stochastic loadings to determine the influence on fatigue life of the bandwidth of the loading process. Constant...
Fracture-Lining Minerals in the Lower Topopah Spring Tuff at Yucca Mountain
Fracture-lining minerals in the lower Topopah Spring Member of the Paintbrush Tuff at Yucca Mountain, Nevada, are being examined to characterize potential flow paths within and away from...
Unsaturated Flow Through a Variable Aperture Fracture in Topopah Spring Welded Tuff
The role of fractures in unsaturated flow through welded and nonwelded tuffaceous rocks is a fundamental question being addressed in performance assessment activities for the Yucca Mountain...
Laboratory Determined Suction Potential of Topopah Spring Tuff at High Temperatures
The purpose of this work is to experimentally determine the capillary suction potential of Topopah Spring tuff from Yucca Mountain, Nye County, Nevada. This data can be used to help characterize...
Effect of HNO3-Cerium(IV) Decontamination on Stainless Steel Canister Materials
Stainless steel canisters will be filled with vitrified radioactive waste at the West Valley Demonstration Project (WVDP), West Valley, NY. After they are filled, the sealed canisters...
Pore-Water Extraction from Unsaturated Tuffs Using One-Dimensional Compression
To support the study of the unsaturated-zone hydrochemistry at Yucca Mountain, Nevada, a one-dimensional compression system was developed and tested to extract unaltered and uncontaminated...
Mechanical Excavator Performance in Yucca Mountain Tuffs
A research effort of four phases is in progress at the Colorado School of Mines. The overall program will evaluate the cutability of welded tuff and other lithologies likely to be excavated...
Distribution of Rubidium, Strontium, and Zirconium in Tuff From Two Deep Coreholes at Yucca Mountain, Nevada
Variations in concentrations of trace elements Rb, Sr, and Zr within the sequence of high-silica tuff and dacitic lava beneath Yucca Mountain reflect both primary composition and secondary...
Mechanical Tunnel Excavation in Welded Tuff
The Technical Review Board for the United States high-level radioactive waste facility at Yucca Mountain has recommended maximum use of 'the most modern mechanical excavation...
Sensitivity Analysis of Connection Stiffness in Orthogonal Frames with End-Plate Connections
According to AISC-LRFD specification (1986), two types of construction for steel frame structure can be assumed which are Type PR (partially restrained) and FR (fully restrained) constructions....
Performance of a Welded Wire Wall with Poor Quality Backfills on Soft Clay
Integrated Waste Management at the Weldon Spring, Missouri Site Remedial Action Project
The diversity of contaminants and contaminated media at the Weldon Spring, Missouri CERCLA site, located about 30 miles west of St. Louis, Missouri, necessitates the formulation of integrated...
The Replacement of Penstocks at TVA Ocoee II Power Plant
The Tennessee Valley Authority (TVA) replaced the steel penstocks at its Ocoee II power plant near Ocoee, Tennessee. A total replacement was necessary because of severe corrosion on the...
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