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Geotechnical Properties of Oil Shale Retorted by the PARAHO and TOSCO Processes
Partial abstract: "Waste disposal schemes using spent shale in embankments require a thorough knowledge of its geotechnical engineering properties for environmentally safe disposal. In this context, the objective of this laboratory investigation was to determine the physical properties, geotechnical properties, and composition of spent oil shale retorted by the PARAHO and TOSCO processes."
Date:
November 1979
Creator:
Townsend, Frank C. & Peterson, Richard W.
Object Type:
Report
System:
The UNT Digital Library
Engineering Geology and Geomorphology of Streambank Erosion, Report 3: The Application of Waterborne Geophysical Techniques in Fluvial Environments
Partial abstract: "The development of waterborne geophysical systems and techniques has provided the geotechnical community with an array of data acquisition tools that can be applied to the fluvial environment. The major purpose of the study described in this report is to evaluate the performance, application, and capability of selected waterborne acoustic profiling systems for streambank erosion studies in fluvial environments. Additional objectives of the study reported herin were to present types of available survey ssytems and related support equipment and to describe techniques for using the systems and equipment."
Date:
February 1982
Creator:
May, John R.
Object Type:
Report
System:
The UNT Digital Library
Cavity Detection and Delineation Research, Report 1: Microgravimetric and Magnetic Surveys: Medford Cave Site, Florida
Partial abstract: "This report reviews the scope of a research effort initiated in 1974 at the U.S. Army Engineer Waterways Experiment Station with the objectives of (a) assessing the state of the art in geophysical cavity detection and delineation methodology and (b) developing new methods and improving or adapting old methods for application to cavity detection and delineation." This report discusses the geography, topography, site drilling tests, magnetic and microgravimetric surveys, and other information about the Medfor Cave site in Florida.
Date:
March 1983
Creator:
Butler, Dwain K.
Object Type:
Report
System:
The UNT Digital Library
Monolith Joint Repairs: Case Histories
This report discusses a study to identify materials and techniques to repair monolith joints, a common location for deficiencies in dams and locks. It also identified areas for further investigation to supplement existing technologies.
Date:
August 1989
Creator:
May, James G. & McDonald, James E.
Object Type:
Report
System:
The UNT Digital Library
Drainage and Erosion Control Facilities: Field Performance Investigation
Partial summary: "The drainage and erosion control facilities of 54 installations were observed to evaluate performance of surface and subsurface drainage systems, erosion control measures, and conditions of buried conduits and associated facilities. Although the facilities observed varied from only 1 to 30 years or more of age and it is recognized that basic demands have increased as well as the fact that design and construction procedures have been improved continuously, many of the old familiar problems still exist and a few new ones have developed" (p. xi).
Date:
June 1973
Creator:
Grace, John L., Jr.; Calhoun, C. C., Jr. & Brown, D. N.
Object Type:
Report
System:
The UNT Digital Library
Repair of Waterstop Failures: Case Histories
This report discusses case studies of failures in waterstops that prevent water passage through the monolith joints of concrete dams and locks. "The primary objective of this study was to identify materials and techniques which have been used in repair of waterstop failures. Also, based on a review and evaluation of current practices, a secondary objective was to identify those areas where research is needed to supplement existing technology" (abstract).
Date:
November 1986
Creator:
McDonald, J. E.
Object Type:
Report
System:
The UNT Digital Library
State-of-the-Art for Assessing Earthquake Hazards in the United States: Report 11, Imagery in Earthquake Analysis
Partial abstract: "Recent advances in the fields of remote sensing, engineering geology, seismology, and earthquake engineering have developed a need for a systematic comprehensive review of the basic principles and methods of applying remote sensing for evaluation of earthquake hazards and seismic risk. This paper responds to this need by reviewing basic concepts, summarizing essential, state-of-the-art knowledge of theory and instrumental methods, establishing procedures evaluations, and discussing representative case histories that illustrate earthquake hazard evaluations that are based on remote sensing analysis."
Date:
December 1978
Creator:
Glass, Charles E. & Slemmons, David B.
Object Type:
Report
System:
The UNT Digital Library
State-of-the-Art for Assessing Earthquake Hazards in the United States: Report 19, The Evidence for Reservoir-Induced Macroearthquakes
Partial abstract: "The published evidence of reservoir-induced macroearthquakes is critically reviewed. The evidence is partitioned into three types: (a) evidence of a post-impoundment increase in seismicity, (b) correlation evidence that is composed of a plot of a reservoir variable and a seismicity variable and, in most cases, an auxiliary variable, time, and (c) evidence based on the slope of the magnitude-frequency relationship (b value evidence)."
Date:
June 1982
Creator:
Meade, Ronald B.
Object Type:
Report
System:
The UNT Digital Library
Response of Deep Two-Way-Reinforced and Unreinforced Concrete Slabs to Static and Dynamic Loading, Report 3: Static Tests of Deep Slabs Having a Span-to-Thickness Ratio of 4.12
Partial abstract: "The objective of the investigation reported herein was to obtain laboratory response data for deep, two-way-reinforced and plain concrete slabs subjected to static overpressures in order to determine the response analysis necessary to analyze the target vulnerability of such structures under both active and passive defense situations" (p. 4).
Date:
November 1969
Creator:
Cole, K. M.; Albritton, Gayle E. & Beavers, James E.
Object Type:
Report
System:
The UNT Digital Library
Survey of Gulf Coast Structural Damage Resulting from Hurricane Camille, August, 1969
This report describes damage to structures by Hurricane Camille in qualitative terms, and with photographs. The investigation was carried out by a team sponsored by the Office of Civil Defense, and it includes conclusions and recommendations.
Date:
1970
Creator:
Criswell, Marvin E. & Cummins, Reid S.
Object Type:
Report
System:
The UNT Digital Library
Isabella Dam Spillway, Kern River, California: Hydraulic Model Investigation
Abstract: "Tests were conducted on a 1:50-scale model of Isabella Dam Spillway to determine the adequacy of proposed spillway, dam, and channel improvements. The model reproduced an area of the reservoir 800 ft wide by 1,100 ft long, the spillway, and the entire length of the exit channel. Unsatisfactory flow conditions were observed in the vicinity of the spillway crest due to approach conditions to the spillway. Large cross waves, present in the exit channel just downstream of the spillway, resulted in occasional overtopping of the right wall. A grouted rock dike that provided satisfactory flow conditions at the spillway and downstream throughout the exit channel was placed adjacent to the existing spillway approach wall."
Date:
August 1987
Creator:
Davis, W. G.
Object Type:
Report
System:
The UNT Digital Library
Short- and Long-Time Deflections of Reinforced Concrete Flat Slabs
Summary: "This report summarizes the results of a field investigation to determine the short- and long-time deflections and concrete strains in an Army barracks flat-plate structure at Fort Hood, Killeen, Texas. Due to the rather great slab thickness of 9 in., corresponding to an L/T ratio of approximately 28, all observed deflections were small and in no instance exceeded 0.022 ft, or about 1/800 of the shorter span, during the 45-month observation period, in spite of an early temporary construction load estimated to have been almost 30 percent in excess of the total design load. The measured short-time deflections under various loading conditions compared reasonably well with deflections predicted by use of the ersatz frame analysis method" (p. ix).
Date:
February 1970
Creator:
Geymayer, H. G. & McDonald, J. E.
Object Type:
Report
System:
The UNT Digital Library
Pile Loading Tests Combined Morganza Floodway Control Structure
Series of pile loading tests performed on the Morganza Floodway control structure to determine the most economic way to support the foundation in the compressible underlying soils. The report also provides information about the structure and previous tests.
Date:
January 1950
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
The Unified Soil Classification System
The purpose of this manual is to describe and explain the use of the "Unified Soil Classification System" in order that identification of soil types will be on a common basis throughout the agencies using this system.
Date:
March 1953
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
The Unified Soil Classification System, Appendix B: Characteristics of Soil Groups Pertaining to Roads and Airfields
Report describing various kinds of soils and their characteristics, for use in constructing roads and airfields: "The properties desired in soils for foundations under roads and airfields and for base courses under flexible pavements are: adequate strength, good compaction characteristics, adequate drainage, resistance to frost action in areas where frost is a factor, and acceptable compression and expansion characteristics. Certain of these properties, if inadequate in the soils available, may be supplied by proper construction methods" (p. B1).
Date:
June 1957
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
The Unified Soil Classification System, Appendix A: Characteristics of Soil Groups Pertaining to Embankments and Foundations
Report describing various kinds of soils and their characteristics, for use in constructing embankments and foundations: "The major properties of a soil proposed for use in an embankment or foundation that are of concern to the design or construction engineer are its strength, permeability, and consolidation and compaction characteristics. Other features may be investigated for a specific problem, but in general some or all of the properties mentioned above are of primary importance in an earth embankment or foundation project of any magnitude" (p. 1).
Date:
March 1953
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Recommended Practices for Establishment and Maintenance of Turf
"The intent of this report is to provide technical and practical information which will be of value to those responsible for preparation, review or accomplishment of specifications for the establishment of vegetative ground cover. [...] The report is concerned primarily with establishment of turf grasses in the continental United States. A brief discussion of maintenance practices is included as such practices have a direct bearing on the successful establishment of the desired ground cover" (p. 1).
Date:
April 1953
Creator:
Cale, E. B.
Object Type:
Report
System:
The UNT Digital Library
Flood Protection Plans for Cumberland, Maryland & Ridgeley, West Virginia: Hydraulic Model Investigation
Report of a hydraulic model investigation "to determine the most economical method of providing protection for Cumberland and Ridgeley against floods somewhat greater than the flood of March 1936 Specifically, the model was used to determine: the proper sections and grades of channels required to pass the design flood with maximum reductions in flood stages; the minimum heights of levees and walls; and the channel treatment required at bridges to insure the safe passage of floodwaters with minimum alterations to the structures" (p. 4).
Date:
January 1957
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Operating Forces on Miter-Type Lock Gates
This report presents the results of a series of investigations to address possible lock operation problems. "Tests to determine operation forces on miter-type lock gates were conducted in a 5.5-ft-wide, 66.5-ft-long, 4.25-ft-deep flume equipped with a single set of miter gate leaves located approximately inthe center of the flume. Three linkages, with differenet kinematics of the operating machinery, were studied: modified Ohio River, Panama, and Ohio River. For each linkage, tests were conducted at gate submergences of 1 to 4 ft and at operating times of 10.1 to 40.2 sec. The effects of chamber length, bottom clearance of gates, presence of barges in the lock chamger, and nonsynchronous operation of the gate leaves also were investigated" (p. vii).
Date:
June 1964
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Filling and Emptying System, Cannelton Main Lock, Ohio River, and Generalized Tests of Sidewall Port Systems for 110- by 1200-ft Locks: Hydraulic Model Investigation
Report providing the results of a hydraulic model investigation of the Cannelton Lock proposed for construction on the Ohio River. It includes detailed information about the tests and suggested dimensions and features of the final lock.
Date:
February 1966
Creator:
Ables, Jackson H., Jr. & Boyd, M. B.
Object Type:
Report
System:
The UNT Digital Library
Review of Soils Design, Construction, and Prototype Analysis: Blakely Mountain Dam, Arkansas
This report provides a review of the design and performance of the embankment and foundation of Blakely Mountain Dam in Arkansas. "This study is one of a series of similar studies of the foundation and soil mechanics features of earth dams [...] In these studies field experience is analyzed and performance of the completed structures is compared with design predictions to provide information for use in the design and construction of future projects" (p. 1).
Date:
October 1956
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Performance of Relief Wells Along Missouri River Levees: 1951-1952 Floods
"The purpose of this report is to present the results of a study of the performance of the three relief well systems [along the Missouri River] during the July 1951 and April 1952 floods, and to compare their performance with design predictions. [...] The report includes observed uplift and well-flow data, descriptions of relief well operations during the floods, and an analysis of the effectiveness of the well systems together with discussion and comments on several experimental and test wells" (p. 2).
Date:
December 1956
Creator:
Waterways Experiment Station (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Acoustic Flowmeter Prototype Evaluation Tests
Summary: "Prototype tests of an acoustic flowmeter system were made in a 24-ftdiam power penstock at Oahe Dam to evaluate the system prior to permanent installation in the outlet works at Summersville Dam. Comparative discharge measurements included acoustic, penstock pressure-momentum (Gibson), turbine model test ratings, scroll-case pressure differential (Winter-Kennedy flowmeter), and surge tank volume changes. The acoustic flowmeter measurements were very consistent and many of the comparisons were within 1%. The location of the measuring section for a single-path acoustic flowmeter must be selected to give a known or measurable relation between the flow pattern of the whole section and that along the acoustic path" (p. xi).
Date:
January 1968
Creator:
Pickett, Ellis B.
Object Type:
Report
System:
The UNT Digital Library
Filling and Emptying Systems, Low-Lift Locks, Arkansas River Project: Hydraulic Model Investigation
Results of a hydraulic model investigation based on locks in the Arkansas River before the construction of additional locks. "Model studies of the filling and emptying system proposed for use at the low-lift locks in the Arkansas project were conducted to confirm the adequacy of the original design hydraulic system, and to develop, if needed, improvements in the system" (p. 2).
Date:
November 1966
Creator:
Ables, Jackson H., Jr. & Boyd, M. B.
Object Type:
Report
System:
The UNT Digital Library