Technical Report Archive & Image Library (TRAIL) - 55 Matching Results

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Concepts for Installation of the Precast Concrete Stay-in-Place Forming System for Lock Wall Rehabilitation in an Operational Lock

Description: Report describing a study to extend the application of a method to rehabilitate damaged lock walls that uses a stay-in-place forming system. "During this study, operational and design criteria were developed to serve as the basis for design. A number of repair concepts were identified that satisfied the criteria" (abstract, para. 3).
Date: December 1989
Creator: Waterways Experiment Station (U.S.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Levee Underseepage Analysis for Special Foundation Conditions

Description: This report describes a research study in which techniques were developed for prediction of underseepage conditions for special cases of levee and foundation geometry. The differential equations for levee underseepage were derived and programmed in finite difference form for three special cases of boundary conditions. The developed programs allow analyses that are not restricted to the boundary conditions assumed in the conventional, closed form solution, i.e., two foundation layers of uniform … more
Date: September 1989
Creator: Wolff, Thomas F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Levee Underseepage Analysis for Special Foundation Conditions [Floppy Disk]

Description: Computer program developed to predict underseepage conditions for special cases of levee and foundation geometry. The differential equations for levee underseepage were derived and programmed in finite difference form for three special cases of boundary conditions. The developed programs allow analyses that are not restricted to the boundary conditions assumed in the conventional, closed form solution, i.e., two foundation layers of uniform thickness with horizontal boundaries.
Date: September 1989
Creator: Wolff, Thomas F.
Item Type: Refine your search to only Dataset
Partner: UNT Libraries Government Documents Department
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Levee Underseepage Software: User Manual and Validation

Description: Report discussing the FORTRAN 77 computer program (LEVSEEP), developed to analyze levee underseepage on IBM PC compatible microcomputers with an 8087 math coprocessor. The software and associated equipment plots cross sections and piezometer data; calculates seepage flow and substratum pressure; analyzes landside berm, river side blanket, cutoff and relief well control measures; and finally, estimates the construction cost of these alternatives.
Date: September 1989
Creator: Cunny, Robert W.; Agostinelli, Victor M., Jr. & Taylor, Hugh M., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Levee Underseepage Software: User Manual and Validation [Floppy Disk]

Description: A FORTRAN 77 computer program (LEVSEEP), developed to analyze levee underseepage on IBM PC compatible microcomputers with an 8087 math coprocessor. The software and associated equipment plots cross sections and piezometer data; calculates seepage flow and substratum pressure; analyzes landside berm, river side blanket, cutoff and relief well control measures; and finally, estimates the construction cost of these alternatives.
Date: September 1989
Creator: Cunny, Robert W.; Agostinelli, Victor M., Jr. & Taylor, Hugh M., Jr.
Item Type: Refine your search to only Dataset
Partner: UNT Libraries Government Documents Department
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Monolith Joint Repairs: Case Histories

Description: 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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Prototype Evaluation of Bay Springs Lock Tennessee-Tombigbee Waterway, Mississippi: Hydraulic Model Investigation

Description: From abstract: Prototype tests were conducted to comprehensively evaluate the performance of the 84-ft-lift Bay Springs Lock. The evaluation included analysis of the operating characteristics and hydraulic efficiency of the lock as well as a comparison of the physical and analytical model results with the prototype.
Date: August 1989
Creator: McGee, Richard G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Study of Sand Waves in the Panama City, Florida, Entrance Channel

Description: Report describing a study of the entrance channel to St. Andrew Bay, near Panama City, Florida, which is subject to the formation of large sand waves. It was intended to determine the extent of the problem and to review possible alternatives for addressing it.
Date: July 1989
Creator: Lillycrop, W. Jeff; Rosati, Julie Dean & McGehee, David D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geotechnical Applications of the Self-Potential Method, Report 3: Development of Self-Potential Interpretation Techniques for Seepage Detection

Description: This report consists of four distinct but complementary parts: (a) a laboratory/field study of environmental effects on self-potential (SP) electrodes and long-term stability of the electrodes; (b) field investigations at Beaver Dam, Arkansas; (c) development of a computer program for interpretation of seepage-related SP field survey data; (d) development of an extensive bibliography and data base for acquisition and interpretation of seepage-related SP data.
Date: February 1989
Creator: Corwin, Robert W. & Butler, Dwain K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coastal Processes at Sea Bright to Ocean Township, New Jersey: Volume 1, Main Text and Appendix A

Description: From abstract: This report describes a study of coastal processes along the Atlantic Coast from Sea Bright to Ocean Township, New Jersey. Predictive tools were developed and a data analysis made to assist in evaluation and implementation of comprehensive shore protection plans for this highly utilized stretch of coastline.
Date: August 1988
Creator: Kraus, Nicholas C.; Scheffner, Norman W.; Hanson, Hans; Chou, Lucia W.; Cialone, Mary A.; Smith, Jane McKee et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Retrogressive Failures in Sand Deposits of the Mississippi River, Report 1: Field Investigations, Laboratory Studies and Analysis of the Hypothesized Failure Mechanism

Description: First report regarding geotechnical field investigations meant to apply current state-of-the-art knowledge and methods to assessing the in situ characteristics of susceptible point bar deposits below Baton Rouge.
Date: June 1988
Creator: Torrey, Victor H., III; Dunbar, Joseph B. & Peterson, Richard W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Retrogressive Failures in Sand Deposits of the Mississippi River, Report 2: Empirical Evidence in Support of the Hypothesized Failure Mechanism and Development of the Levee Safety Flow Slide Monitoring System

Description: This report represents a continuation of efforts by the Lower Mississippi Valley Division (LMVD), US Army Corps of Engineers, to develop an effective plan for and means of protecting the integrity of main line Mississippi River levees from the threat of flow slides in sand deposits.
Date: June 1988
Creator: Torrey, Victor H., III
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sweetwater River Channel Improvement Project, San Diego County, California: Hydraulic Model Investigation

Description: From abstract: A study of the proposed channel alignment project was conducted using a fixed-bed model constructed at a scale of 1:40 to study the effect of downstream waves and disturbances caused by the curvilinear flow conditions.
Date: February 1988
Creator: Turner, Herman O., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Nondestructive Testing Systems for in situ Evaluation of Concrete Structures

Description: Final report regarding the testing of concrete structures. Partial abstract: "The need for additional capability to nondestructively evaluate concrete in large structures is similar for both the US Army Corps of Engineers (CE) and the US Bureau of Reclamation (USBR). In view of this mutual need, the CE and the USBR entered into a cooperative program of research and development designed to increase the nondestructive testing evaluation capabilities of these two organizations, with each agency s… more
Date: December 1987
Creator: Thornton, Henry T., Jr. & Alexander, A. Michel
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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State-of-the-Art for Assessing Earthquake Hazards in the United States, Report 25: Parameters for Specifying Intensity-Related Earthquake Ground Motions

Description: Abstract: "A set of 12 charts are presented that relate Modified Mercalli intensity units to peak horizontal acceleration, velocity and duration for near field and far field locations, hard and soft sites, and sizes of earthquakes. Also shown is the mean, mean plus one standard deviation, mean plus two standard deviations, and the highest observed values. Ratios are provided of vertical to horizontal motions and predominant periods. These charts are for use with known fault sources and for floa… more
Date: September 1987
Creator: Krinitzsky, E. L. & Chang, Frank K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Isabella Dam Spillway, Kern River, California: Hydraulic Model Investigation

Description: 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, r… more
Date: August 1987
Creator: Davis, W. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Repair of Waterstop Failures: Case Histories

Description: 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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geotechnical Aspects of Rock Erosion in Emergency Spillway Channels, Report 1

Description: "The problem of rock erosion in unlined emergency spillway channels is described in this first-of-a series report. Recent CE and non-CE case histories which illustrate the potentially hazardous impacts of excessive erosion in discharge channels are described as are the various factors controlling erosion and other responses to emergency spillway overflow. Research programs designed to improve geotechnical capabilities with respect to selection of cost-effective preventive and remedial measures … more
Date: August 1986
Creator: Cameron, Christopher P.; Cato, Kerry Don; McAneny, Colin C. & May, James H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical and Biological Characterization of Black Rock Harbor Dredged Material

Description: "This is one in a series of scientific reports documenting the findings of studies conducted under the Interagency Field Verifications of Testing and Predictive Methodologies for Dredged Material Disposal Alternatives (referred to at the Field Verification Program or FVP). This program is a comprehensive evaluation of environmental effects of dredged material disposal under conditions of upland and aquatic disposal and wetland creation."
Date: September 1985
Creator: Rogerson, Peter F.; Schimmel, Steven C. & Hoffman, Gerald
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Vaiont Slide: A Geotechnical Analysis Based on New Geologic Observations of the Failure Surface, Volume 1: Main Text

Description: First part of a final report describing "efforts to confirm the existence and nature of clay seams in the [Vaiont Slide] mass and to confirm the possible existence of an 'old' slide at the site. These efforts were made by (a) firsthand field observations of the geology, (b) an examination of preslide and postslide airphotographs, (c) laboratory testing of samples of failure plane materials, and (d) and examination and translation of geologic and other documents related to preslide and postslid… more
Date: June 1985
Creator: Hendron, A. J., Jr. & Patton, F. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Vaiont Slide: A Geotechnical Analysis Based on New Geologic Observations of the Failure Surface, Volume 2: Appendicies A Through G

Description: Second part of a final report containing appendices to accompany a study describing "efforts to confirm the existence and nature of clay seams in the [Vaiont Slide] mass and to confirm the possible existence of an 'old' slide at the site. These efforts were made by (a) firsthand field observations of the geology, (b) an examination of preslide and postslide airphotographs, (c) laboratory testing of samples of failure plane materials, and (d) and examination and translation of geologic and othe… more
Date: June 1985
Creator: Hendron, A. J., Jr. & Patton, F. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bioaccumulation of contaminants from Black Rock Harbor dredged material by mussels and polychaetes

Description: "This report describes work performed by the U.S. Environmental Protection Agency (EPS), Environmental research laboratory, Narragansett, R.I. (ERLN), as part of the Interagency Field verification of Testing and predictive Methodologies for Dredged Material Disposal Alternatives Program or the Field Verification Program (FVP)."
Date: February 1985
Creator: Lake, James; Hoffman, Gerald L. & Schimmel, Steven C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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