Engineering Commons^™

Some Uncertainties Of Slope Stability Analyses, Robert C. Deen, Tommy C. Hopkins, David L. Allen

Kentucky Transportation Center Research Report

Some practical limitations of total stress and effective stress analyses are discussed. For clays having a liquidity index of 0.36 or greater, φ-equal-zero analyses based on laboratory undrained shear strengths give factors of safety close to the actual factor of safety. However, based on field vane strengths, φ-equal-zero analyses may yield factors of safety which may be too high. The difference between field vane and calculated shear strengths increased as the plasticity index increased. For clays having a liquidity index less than 0.36, φ-equal-zero analyses using laboratory undrained shear strengths give factors of safety that are much too high; but …

Acoustic Emission Testing Of High-Strength Steel Weldments, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

Manual arc welds were made on high-strength ASTM A 514 and A 588 steels. Different weldment configurations were employed in order to vary the restraint on the welds during cooling. The weldments were monitored 'in-cooling' with acoustic emission equipment. Weldments having greater restraint produced more acoustic emission, usually for longer periods of time. Weldments which fractured during cooling produced more acoustic emission than those which were unflawed.

Suspended And Dissolved Solids Effects On Freshwater Biota: A Review, Darwin L. Sorensen, Margaret M. Mccarthy, E. Joe Middlebrooks, Donald B. Porcella

Reports

It is widely recognized that suspended and dissolved solids in lakes, rivers, streams, and reservoirs affect water quality. In this report the research needs appropriate to setting freshwater quality criteria or standards for suspeneded solids (not including bedload) and dissolveed solids are defined by determining the state of our knowledge from a critical review of the recent literature in this field. Common literature sources and computer searching routines were used as an initial source of information followed by detailed journal searches. Although some 185 journal articles, government reports, and other referecnes were cited herein (about 45 percent publicshed since 1974) …

Fundamental Analysis Of The Linear Multiple Regression Technique For Quantification Of Water Quality Parameters From Remote Sensing Data, Charles Henry Whitlock Iii

Civil & Environmental Engineering Theses & Dissertations

Inconsistent results have been obtained from previous experiments which have applied linear multiple regression techniques to remote sensing data for quantification of water quality parameters. The objective of this investigation is to define optical physics and/or environmental conditions under which the linear multiple regression should be applicable. To achieve this objective, an investigation of the signal response equations is conducted and the concept is tested by application to both analytical test cases and actual remote sensing data from a laboratory under controlled conditions.

Investigation of the signed response equations shows that the exact solution for a number of optical physics …

A Model To Investigate The Influence Of Suspended Sediment On The Mass Transport Of A Pollutant In Open Channel Flow, Raymond Scott Chapman

Civil & Environmental Engineering Theses & Dissertations

The environmental impact of the transport of pollutants in open channel flow has for many years been of interest due to the continuous introduction of heavy metals, pesticides, herbicides, and other foreign substances into natural waterways. In order to fully understand this transport process, it-is necessary to examine the significance of its individual components. In the present study an explicit two-dimensional finite difference model, designed to investigate the influence of suspended sediment on the pollutant transport process, is presented. Specific attention is directed toward examining the role of suspended sediment in 1) the turbulent vertical transport mechanism in a stratified …

Computerized Analysis Of Stress-Strain Consolidation Data, E. Gregory Mcnulty

Kentucky Transportation Center Research Report

A computerized, mathematical algorithm is described and presented for analyzing the semilogarithmic stress-strain (time-independent) properties of standard, controlled-gradient, and controlled-rate-of-strain consolidation tests. This algorithm is an automation of manual graphical procedures currently used in engineering practice to obtain stress-strain information necessary for use in time-independent settlement analysis. The Casagrande and Schmertmann constructions are analytically represented to determine the preconsolidation stress and the in situ, compressibility coefficients of compression and expansion. Values for each of these parameters range between a probable and minimum value. The point of maximum curvature is determined for the Casagrande construction by use of the mathematical definition …

Ole Miss Engineer 1977

Ole Miss Engineer

No abstract provided.

Identification Of Hazardous Locations On City Streets, Charles V. Zegeer, Robert C. Deen

Kentucky Transportation Center Research Report

The purpose of this study was to develop an effective method for identifying hazardous locations in Kentucky cities (over 2,500 population). Methods used in 45 other states were reviewed. Accident information for 69 of the 97 cities over 2,500 population was used to develop criteria for an identification method.

A Number Method was selected for initial identification of midblocks and intersections on arterial-collector streets and on urban freeways. A Rate-Quality Control Method was included in the form of a critical rate factor computed for each location. A set of critical rate curves was constructed for easy determination of hazardous locations. …

Voidless And Internally Sealed Concretes (Construction Report; Silas Creek Bridge, Us 27, Mp-009-0027-B0002), Assaf S. Rahal

Kentucky Transportation Center Research Report

Laboratory investigations on concretes containing super water reducers, PVP and Melment, indicated their suitability for field utilization. Wax beads have been used by other states in concretes for bridge slabs. This report describes the reconstruction of a four-span bridge having three experimental slabs and one conventional slab. Post-construction analyses of cores are included.

Agricultural Crop Drying And Space Heating Using A Solar Energy Intensifier, M. A. Hellickson, W. H. Peterson, S. E. Saienga, J. L. Julson

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

A solar energy-intensifier-thermal energy storage system was developed and tested under actual climatic conditions in South Dakota. Performance characteristics of the system are presented for its use in drying shelled corn and for agricultural space heating. Comparisons between solar and conventional drying between solar supplemented and conventional heating are reported.

Steel Roof Deck Design Manual, Steel Deck Institute

Steel Deck Institute (SDI) Specifications and Manuals (1939 - present)

No abstract provided.

Poultry Breeds Must Be Conserved : An Ideal Small Unit, R H. Morris

Journal of the Department of Agriculture, Western Australia, Series 4

The Department of Agriculture is concerned at the rapid disapearance of some poultry breeds and strains over recent years. This trend has resulted from the disposal of flocks previously held by commercial poultry breeders and fanciers.

One way to stop the trend of disappearance of poultry breeds is for interested people to maintain a breeding flock of pure-bred poultry, making the progeny available to others.

This article describes a small unit suitable for housing breeding fowls. The unit is based on designs developed by the Department of Agriculture.

Missouri River, South Dakota, Nebraska, North Dakota, Montana Review Report For Water Resources Development, Volume 1 Of 3

United States Army Corps of Engineers, Omaha District

This study investigated a wide range of water resource problems and opportunities related to the Missouri River and the six main stem dams along an area extending over 1.500 miles from Sioux City. Iowa to Three Forks. Montana. Subjects of the study were: the feasibility of installing additional hydro-power generating units both at the main stem dams and adjacent to the river; resolution of bank erosion, waterlogging, and residual flood problems; opportunities for recreation, fish and wildlife enhancement; operating plans of the main stem system considering future water use; and potential for extending navigation upstream from Sioux City. Iowa.

Several …

Optimizing Crop Production Through Control Of Water And Salinity Levels In The Soil, J. I. Stewart, R. M. Hagan, W. O. Pruitt, R. E. Danielson, W. T. Franklin, R. J. Hanks, J. P. Riley, E. B. Jackson

Reports

Sizable investments have been made and continue to be made throughout the world to develop irrigation potentials. Recent food shortages have heightened the concern for obtaining greater returns to irrigation through improved water management and use. A knowledge of how plant growth cycles relate to moisture and salinity levels in the root zone is prerequisite to developing practical ways of maintaining optimum conditions for maximum production per unit of water concerned. This research further defines the role of irrigation timing and salinity management on crop production, and proposes practical techniques for predicting the crop response to management measures. Some of …

Proceedings Of The Utah Water Pollution Control Association Annual Meeting 1977, James H. Reynolds, Donna H. Falkenborg

Reports

Preface: This volume is the first published proceeding of the Utah Water Pollution Associations Annual Meeting. The Technical Program of the Annual Meeting was divided into five separate sessions. The program was developed to attract individuals concerned with management, design and operation of wastewater treatment facilities. Special emphsis was given to the design and operation of wastewater filtration devices. Unfortunately, four papers are not included in the proceedings because the authors failed to meet the submission deadline. These papers are (1) "Utah Discharge Requirements" by Calvin Sudweeks, (2) "Chlorine, Califorms, 1977 Standards and you" by Robert A. Sperling, (3) "Panel …

Water Flow Patterns In Heterogeneous Soils Under Trickle Irrigation, Abdolhossien Nassehzadeh-Tabrizi, Roland W. Jeppson, Lyman S. Willardson

Reports

No abstract provided.

Growth And Uptake Dynamics Of Selenastrum Capricornutum Parameterized By Percent Nitrogen, Ronald F. Malone, Kenneth A. Voos, William J. Grenney

Reports

Batch cultures of

The Virgin River Basin Study: A Regional Approach To Multiobjective Planning For Water And Related Resources, John E. Keith, Jim Mulder, Trevor C. Hughes, V. A. Narasimhan, Lance Rovig, Karl Eriksen, Don D. Fowler, Lucinda Borchard, Kirk Kimball, Spence Ballard, K. S. Turna, Daniel H. Hoggan

Reports

A joint research effort by the Utah Water Research Laboratory and the Nevado Center for Water Resources Research applied two multiobjective planning models to the Virgin River Basin in order to test the efficiency and practicality of applying such tools in water resrouces planning. The surrogate Worth Trade-off (SWT) method couples mathematical optimization to quantify trade offs among noncommensurable objectives with interviews to compare public preferences with respect to these trade offs. PROPDEMM uses information on interest group objectives, balues, willingness to pay, influence, lebel of information, etc. to compare the political feasibility of alternative courses of action. Both models …

A Model Of Environmental Transport Of Heavy Metals Originating From Stack Derived Particulate Emission In Semi-Arid Regions, J. J. Jurinak, William J. Grenney, Gene L. Wooldridge, J. Paul Riley, R. J. Wagenet

Reports

Executive Summary:

Proposal To Technology Transfer Office Of Water Research And Technology U.S. Department Of Interior, C. Earl Israelsen, Frank W. Haws, Donna H. Falkenborg, L. Douglas James

Reports

Executive Summary:

Rural Domestic Water System Peak Flows And Design Innovations, Optimal Water Planning Series, Trevor C. Hughes, Yukio Kono, Ronald Canfield

Reports

Planning engineers commonly use generous factors of safety for peak flow estimates in urban water supply systems both as a hedge against unforeseen growth and because economies of scale result in relatively low user costs even with such reserve capacity. Transplanting of such design criteria into the rural setting, however, simply does not work. The low density portions of rural domestic systems require very realistic design criteria or the construction costs become infeasible for the small number of customers involved. Peak instantaneous flow rates in a Utah rural system were measured continuously during two summers on three dead-end lines serving …

Climatology Of Hailstorms In Utah--The Hail Suppression Potential By Cloud Seeding, Kenneth G. Hubbard

Reports

Hail damage in Utah was examined for individual counties and the entire state. A survey of informal observes was taken and the resulting data base was analyzed. Data from NWS was also examined. County hail damage figures average 4 to 5 percent of production and ranking of counties according to dollar damage occurs in only 4 of the 29 counties (Box Elder, Utah, Millard, and Cache). In many cases the highest dollar damage occurred in the counties of greatest dollar damage should receive the greatest concentration of hail suppression effort. In addition storm severity and crop growth stage were identified …

Weather Modification Studies: The Potential For Creating And Utilizing Ice Crystals In Weather Modification Activities, Kenneth G. Hubbard

Reports

A method utilizing ice crystals to circumvent nucleation processes in cloud seeding activities is discussed in the framework of nuclei activation concepts. Ice, in the form of small crystals, would be a highly efficient cloud seeding materia up to 0 degrees Celsius. The lower limit on humidity would necessitate dispensing the crystals into air that is saturated with respect to ice but no requirement for 100 percent RH(relative humidity) was found. In fact, the lower limit varies with temperature linearly from about 95 percent RH at -5 degrees Celsius to 75 percent RH at -30 degrees Celsius. Preparation of small …

State Financing Alternatives For Water Projects Required To Support Energy Development In The Western Energy Development Area, Daniel H. Hoggan, Kirk R. Kimball, Edward H. Allen, Jay M. Bagley, Richard L. Dewsnup, Herbert H. Fullerton

Reports

No abstract provided.

A Study Of Feasibility Of State Water User Fees For Financing Water Development, Daniel H. Hoggan, O. W. Asplund, J. C. Anderson, D. G. Houston

Reports

Water user fees imposed by a state on major water uses is a possible new alternative source of state water development funds. A fee, similar to an excise tax, might be charged for the use of the water resource per se, which in a number of states is declared to be the property of the public of the state. States generally have not employed such fees as a source of operating funds for water agencies or of development capital. Only in the area of water based recreation-fishing, coating, camping, etc.—have states extensively employed user fees. The revenues from these fees, …

Evaluation Of Southern And Central Utah Cloud Seeding Program, Geoffrey E. Hill

Reports

An evaluation of a winter operational-type cloud seeding project in Utah is made by developing meteorological predictors of target precipitation. Twenty-four hour precipitation amounts in seven unseeded years are matched with 12:00 GMT rawinsonde data to form predictor-predictand relationships. Application of the predictors to the first two years of the project indicates that the observed seeded precipitation is about what would be found in the absence of seeding.

Seedability Of Winter Orographic Storms In Utah, Geoffrey E. Hill

Reports

The primary objective of this research has been to collect and analyze data from (randomized) seeded and unseeded winter storms over the Wasatch Mountains for the purpose of developing and designing cloud seeding technology. Two field programs were conducted sequentially; the first was done by airborne seeding and the second by seeding from mountaintop generators. Analysis of precipitation estimators based upon radar and/or rawinsonde data and target precipitation show that increased precipitation due to seeding may occur under certain meteorological conditions. Favorable conditions were found when the supercooled water concentration as measured by aircraft icing rates was high. Precipitation in …

Series Intermittent Sand Filtration Of Wastewater Lagoon Effluents, David W. Hill, J. H. Reynolds, D. S. Filip, E. J. Middlebrooks

Reports

Previous researches have found single stage intermittent sand filtration to be a feasible and economic means of upgrading wastewater lagoon effluent to meet future standards. However the major constraint on their use has been the length of the filter runs. Laboratory scale and pilot-scale series intermittent sand filtration of wastewater lagoon effluents has been found to substantially increase the length of filter runs as well as produce a high quality effluent able to meet future standards. Higher loading rates were round to be possible with series intermittent sand filtration. The operation consistently produced an effluent meeting present Utah “Class C” …

Runoff Estimates For Small Rural Watersheds And Development Of A Sound Design Method. Volume Ii, Recommendations For Preparing Design Manuals And Appendices B, C, D, E, F, G, & H, Joel E. Fletcher, A. Leon Huber, Frank W. Haws, Calvin G. Clyde

Reports

Frequency analyses of more than 1,000 small watersheds in the United States and Puerto Rico were used to develop the estimation method for design of peak flow for ungaged watersheds. This method, called the Federal highway Administration (FHWA) method, is conceptually similar to the Bureau of Public Roads (BRP) method developed by W. D. Potter. The FHWA method relates the runoff peak to easily determined hydrophysiographic parameters and is intended for use on watersheds smaller than 50 square miles. The concept of risk is incorporated inot the design procedure. The risk is the probability that one or more events will …

Runoff Estimates For Small Rural Watersheds And Development Of A Sound Design Method: Volume Iii. Appendix A, Joel E. Fletcher, A. Leon Huber, Frank W. Haws, Calvin G. Clyde

Reports

Foreword: This report is composed of thee volumes; Volume I is the Research Report; Volume II consists of recommendations for establishing design manuals and Appendices B, C, D, E, F, G, and H, which are the design aids required for establishing design manuals; Volume III consists of Appendix A, and accumulation of the data base used in the study, FHWA chose to arrange the report as described to facilitate distribution of the results. The methods reported herein are designated as the Federal Highway Administration Methods are designed to be applied to watersheds smaller than 50 square miles but may be …