| Simplified Analysis Procedures for Flexible Approach Wall Systems Founded on Groups of Piles and Subjected to Barge Train Impact |
Sep 2012 |
224 pages |
| Authors:
Robert M Ebeling; Ralph W Strom; Barry C White; Kevin Abraham; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB
|
 | One type of flexible substructure used for new flexible approach wall structural system designs in the Corps is flexible pile groups. Simplified analysis procedures for flexible approach wall systems founded on groups of piles and subjected to barge train impact is discussed in this report. Pile bent groups of vertical piling and batter piling are investigated. A balance of energy design procedure is presented. This procedure assumes that all the ... |
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| Defending the Pittsburgh Waterways Against Catastrophic Disruption |
Jun 2012 |
86 pages |
| Authors:
Joshua J Onuska; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OPERATIONS RESEARCH
|
| This thesis develops an Operator's Model that mimics the real-world behavior of coal transport in the Port of Pittsburgh and allows for systematic investigation of what if disruption scenarios. We model the multi-modal flow of coal using a network of nodes and arcs representing river transport, with support from a surrounding system of rail lines and roads. Each mode of shipment has finite capacities with varying costs. Our model routes ... |
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| Dynamic Structural Flexible-Beam Response to a Moving Barge Train Impact Force Time-History Using Impact_Beam |
Aug 2011 |
303 pages |
| Authors:
Robert M Ebeling; Abdul N Mohamed; Jose R Arroyo; Barry C White; Ralph W Strom; Bruce C Barker; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB
|
| To design simply-supported, flexible impact beams spanning between cells or bents for lock approach walls, a dynamic structural analysis of the beam under impact time-history loads for design- specific barge trains is required. At several locks, this flexible structural feature is the primary structural member resisting the glancing-blow impact event of a barge train as it aligns itself with a lock. This technical report describes an engineering methodology used to ... |
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| Deformable Bullnose Energy Absorbing System (BEAS). Report 2: Head-On Impact with a Deformable BEAS and Introducing a Collapsible Arch |
JUL 2011 |
125 pages |
| Authors:
Robert M. Ebeling; Barry C. White; Ralph W. Strom; Jr. Hite John E.; Bruce C. Barker; Richard W. Haskins; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB
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| An impact between a tow and the bullnose of a lock approach wall can result in the tow breaking up with loose barges moving out of control toward the lock or navigation dam with serious consequences. Project operations can be severely affected or even shut down. The loose barges can cause a high safety risk to personnel involved and if the navigation pool is lost or the lock is damaged, ... |
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| Design Concept and Analysis for a Navigation Dam Gate Guard |
MAR 2011 |
13 pages |
| Authors:
E. A. Hammack; Richard L. Stockstill; Jane Vaughan; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| Accidents on navigable waterways in the United States can cause barge tows to break up and, subsequently, individual barges to be carried downstream by the current. As a breakaway barge approaches a navigation structure, its path is essentially determined by the flow patterns around the lock and dam. A primary concern is that a barge will travel to the dam, pass between spillway gate piers, and either strike a gate ... |
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| Water Transport during Normal Operations of Towboats and Barges in the Illinois River |
Jan 2011 |
40 pages |
| Authors:
Danny Heilprin; Todd Main; Penny Herring; COAST GUARD ACADEMY NEW LONDON CT
|
| The primary objective of this study was to determine whether barges and towboats can provide a means for Asian carp to bypass the electrical dispersal barrier in the Chicago Sanitary and Ship Canal (CSSC). Visual inspections of ballast tanks and voids on 132 barges (empty and loaded) and 14 towboats were completed in August 2010. If the water level in an individual tank or void was greater than or equal ... |
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| Barbers Point Harbor, Hawaii, Jetty Modification Study |
Nov-2008 |
179 pages |
| Authors:
Michael J Briggs; Ivano Melito; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| A series of laboratory experiments were conducted for a range of model ships, irregular waves, wave-induced longshore currents, and jetty lengths to optimize the length of a proposed entrance channel jetty at Barbers Point Harbor, Hawaii. Eleven jetty configurations were studied on both sides of the entrance channel, with lengths varying from no-jetty to the proposed 450-ft length. Unidirectional spectral waves with wave periods of 6, 10, 14, and 18 ... |
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| Concept Design for Emergency Closure System for Inland Navigation Structures |
MAY 2008 |
15 pages |
| Authors:
Jr Hite John E.; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| Emergency closures systems are needed at U.S. Army Corps of Engineers navigation projects to reduce damages and economical impacts associated with uncontrolled flow through the project due to failure of a lock or a dam gate. The most likely cause of failure is a navigation accident although an equipment malfunction or an act of terrorism can also result in failure. This Coastal and Hydraulics Engineering Technical Note (CHETN) provides information ... |
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| Status of Current Hopper and Bin Measurement Technologies |
SEP 2004 |
15 pages |
| Authors:
Timothy Welp; James Rosati; G. Howell; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| Research to improve dredging contract management, economics (cost optimization), and contaminated sediments management (document dredging and placement locations) is currently being conducted by the Innovative Technologies (IT) Focus Area of the U.S. Army Corps of Engineers (USACE) Dredging Operations and Environmental Research (DOER) Program. A common element in these research efforts is the ability to measure dredge production with the Silent Inspector (SI). This technical note (TN) describes currently used ... |
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| Structural Loading of Cross Deck Connections for Trimaran Vessels |
JUN 2004 |
|
| Authors:
Jason L. Rhoads; CALIFORNIA UNIV BERKELEY DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
 | This work investigates the fundamental relationships of wave loading on cross deck structures for trimaran vessels. In contrast with a monohull ship, trimaran vessels experience several possible structural loading cases including: longitudinal bending, transverse bending, torsional bending, spreading and squeezing of hulls, inner and outer hull slam pressures, wet deck slam pressures, loading from ship's motions, and whipping of slender hulls. This work investigates wave loading cases that result in ... |
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| Identification and Evaluation of Submerged Magnetic Anomalies Deadmans Island Santa Rosa County, Florida |
23 APR 2004 |
61 pages |
| Authors:
Gordon P. Watts; Raymond Tubby; TIDEWATER ATLANTIC RESEARCH WASHINGTON NC
|
| The U.S. Army Corps of Engineers, Mobile District (USACE-M) has proposed installing a shoreline protection system at Deadmans Island, Santa Rosa County, Florida. This work entails the placement of a wall of vinyl sheetpile offshore of the island and the planting of vegetation on the island itself. Because of the archaeological sensitivity of the island, the USACE-M requested that an underwater remote sensing and terrestrial survey be carried out in ... |
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| Strategy on the Rocks: Sun Tzu in the South Atlantic |
2004 |
16 pages |
| Authors:
Benjamin G. Ziff; NATIONAL WAR COLL WASHINGTON DC
|
| Master Sun Tzu wiped the tears streaming from his eyes as he recovered from his third bout of vomiting that hour. He looked out over the railing at the churning South Atlantic and cursed the bobbing horizon and whatever evil djinn had made him accept the offer from Hong Kong-based Ch i Consulting. It had actually sounded intriguing two months ago: in return for one lecture in some city named ... |
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| Analysis of the Added Mass of a Barge in Restricted Waters, Phase 2 Model |
AUG 2003 |
50 pages |
| Authors:
David R. Kraemer; Michael E. McCormick; JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF CIVIL ENGINEERING
|
| A theoretical analysis of the added mass of barges in restricted waters is presented. The added-mass behaviors with varying waterway and barge parameters are predicted. A numerical technique is used to solve the potential- flow boundary-value problem. The analysis assumes that the Froude number is low. A restriction that the Froude number be less than or equal to 0.1 ensures that the surface waves will be small; this corresponds to ... |
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| Cost Benefit Analysis of Pier Refueling versus Barge Refueling at the Fleet Industrial Supply Center Pearl Harbor, Hawaii |
JUN 2003 |
59 pages |
| Authors:
Roy Drake; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF BUSINESS AND PUBLICPOLICY
|
| The purpose of this MBA project was to complete a cost-benefit analysis of refueling via pipeline versus refueling via barge at Pearl Harbor, Hawaii, The alternatives are (1) refueling via a combination of pipeline and barge (status quo), (2) refueling via a single pipeline, and (3) refueling via barge only. The objective was to compare the three alternatives, choosing that alternative that provides the greater net benefit and most efficient ... |
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| Prototype Barge Impact Experiments, Allegheny Lock and Dam 2, Pittsburgh, Pennsylvania |
JAN 2003 |
214 pages |
| Authors:
Robert C. Patev; Bruce C. Barker; Leo V. Koestler; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB
|
| "Prototype" full-scale barge impact experiments were conducted in late August 1997 at Old Lock and Dam 2 on the Allegheny River, just north of Pittsburgh, PA. The purpose of these experiments was to assist researchers in examining and quantifying the behavior of a barge system during impacts to a rigid lock wall. These types of full-scale impact experiments-using a working towboat and inland waterway barges-have never been attempted before. Therefore, ... |
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| Wave Climate and Wave Response, 2025 Plan, Kahului Harbor, Maui, Hawaii |
SEP 2002 |
78 pages |
| Authors:
Edward F. Thompson; Zeki Demirbilek; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB
|
| Present and projected commercial activities in Kahului Harbor, Maui, HI, indicate that new berths for barge and passenger ship operations will be needed. The U.S. Army Engineer District, Honolulu, in coordination with the Harbors Division, Department of Transportation, State of Hawaii, requested numerical (computer) model studies in support of long-term planning. A numerical model, validated with field measurements for short waves (wind waves and swell) and long waves (harbor oscillations), ... |
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| Acoustic Characterization of Suspended Sediment Plumes Resulting from Barge Overflow |
MAY 2002 |
15 pages |
| Authors:
K. J. Reine; D. G. Clarke; C. Dickerson; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| This technical note presents the results of acoustic monitoring of suspended sediment plumes resulting from overflow from hydraulically filled barges during dredging operations in the Cape Fear River, North Carolina. Acoustic monitoring was used to characterize the spatial extent, concentration gradient structure, and dynamics of plumes during flood and ebb tidal stages. |
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| MAGNETIC DETECTION OF UNDERWTER TARGETS IN VERY SHALLOW WATER FOR SEARCHES AT HIGH SPEEDS, |
FEB 2002 |
|
| Authors:
T. R. CLEM; D. J. OVERWAY; J. W. PURPURA; J. T. BONO; COASTAL SYSTEMS STATION PANAMA CITY FL
|
| (U) THIS PAPER DESCRIBES A SEA TEST TO DEMONSTRATE THE DETECTION, CLASSIFICATION, AND LOCALIZATION (DCL) CAPABILITY OF A HIGH PERFORMANCE SCALAR MAGNETOMETER/GRADIOMETER AGAINST A RANGE OF TARGETS IN THE VERY SHALLOW WATER AND SURFACE ZONE REGIONS, SPECIFICALLY IN WATER DEPTHS OF 5 TO 10 FEET, AND TO DEMONSTRATE HIGH SPEED OPERATION AS ONE MEANS TO INCREASE THE SEARCH RATES OF MAGNETIC SENSORS. THE PAPER REPORTS THAT ONE LOW FERROUS TARGET ... |
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| Ice-Affected Components of Locks and Dams |
FEB 2002 |
30 pages |
| Authors:
Andrew M. Tuthill; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| Ice plagues the operation and maintenance of many U.S. Army Corps of Engineers locks and dams. Because these structures vary greatly in age, geographical setting, and design, their performance in ice also varies. This report describes the ice problems related to specific project components such as the lock approaches, miter gates, lock walls, and dam spillway gates. Post- construction solutions such as high-flow bubblers and heat deicing methods are also ... |
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| Joint Special Operations in Support of Earnest Will |
2002 |
9 pages |
| Authors:
David B. Crist; NATIONAL DEFENSE UNIV WASHINGTON DC INST FOR NATIONAL STRATEGIC STUDIES
|
| On the night of July 23, 1987, there was news of an unusual amount of naval activity around the small Iranian island of Farsi in the northern Persian Gulf. Rear Admiral Harold Bernsen, commander of Middle East Force, found the reports disquieting. The first convoy of Operation Earnest Will was due to arrive in a few hours. It consisted of two oil tankers accompanied by three naval warships. The next ... |
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| A Coupled Hydrodynamic/Structural Model for Ship/Ramp/Barge Interface |
DEC 2001 |
|
| Authors:
Antonios Dalakos; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| A mathematical model describing the fundamental dynamics in the interface problem between a ship, a barge, and a connecting ramp is developed and solved. The hydrodynamics for the ship and the barge are described by a 12- degree of freedom fully coupled model, which is based on potential theory and incorporates proximity effects. Ramp structural dynamics are studied by a finite element model, which has been calibrated based on detailed ... |
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| Development of Experimental Facility for Roll-On Roll-Off Ramp Isolation Dynamics |
JUN 2001 |
43 pages |
| Authors:
Richard A. Trevisan; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| It has been determined that a high stress state occurs in the Roll-on Roll-off (RORO) ship offload stem ramp during vehicle transfers in Sea State 3 conditions. Motion compensation systems (i.e. isolators) between the ramp and the barge (RRDF) are needed to minimize the high stress levels in the ramp. This thesis documents the design, analysis, and construction of a facility to evaluate the performance of candidate isolation systems to ... |
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| Physical Data Collection for Lock Wall Deterioration |
NOV 2000 |
130 pages |
| Authors:
Robert C. Patev; Paul F. Mlakar; Larry M. Bryant; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB
|
| A multifaceted study was performed as part of the Upper Mississippi River Illinois Waterways Navigation Study (UMR-IWW) to gather unknown or previously estimated data to assist with studying the deterioration and loss of concrete from lock walls. This effort revolved around physically monitoring barge traffic in lock chambers with time-lapse video equipment as well as measuring the actual losses from lock wall surfaces to determine the critical parameters needed for ... |
|
| Design of Sediment Trap at Rollover Pass, Texas |
SEP 2000 |
117 pages |
| Authors:
Trimbak M. Parchure; Ben Brown; Robert T. McAdory; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB
|
| Rollover Pass is a narrow manmade channel, which connects the Gulf of Mexico and Rollover Bay. The Gulf Intracoastal Water Way (GIWW) crosses the Rollover Bay on the north side of Rollover Pass. The U.S. Army Engineer District, Galveston, maintains a navigation channel, 38 m (125 feet) wide and 3. 6 m (12 feet) deep within the GIWW for commercial barge traffic. Over the past several years ... |
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| A Report Presented to the Graduate Committee of the Department of Civil Engineering in Partial Fulfillment of the Requirements for the Degree of Mastersof Engineering |
15 JUN 2000 |
51 pages |
| Authors:
Leonard E. Marshall; FLORIDA UNIV GAINESVILLE
|
| Dredging is defined as the removal of soil or material from the bottom of a rivet, lake, or ocean harbor. Dredges are the machines used for this purpose and consist of powerfill hoisting or suction equipment mounted on barge- like floats. These machines are used to deepen or widen waterways, to reclaim land, to build dikes or foundations, and to mine alluvial deposits of precious metals. ... |
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| Barbers Point Harbor Physical Model Navigation Study |
MAR 2000 |
160 pages |
| Authors:
Gordon S. Harkins; Cecil C. Dorrell; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB
|
| Barbers Point Harbor, Hawaii, is located on the southwest coastline of Oahu. The present harbor complex consists of an entrance channel, deep-draft harbor, barge basin, and a private resort marina. Current and potential future users of the harbor would like the capability for fully loaded vessels to enter and leave the harbor, but safe vessel draft is restricted by existing harbor and entrance-channel depths. For a ... |
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| Hawser Load Test of Tow Moored to Downstream Guide Wall, Kentucky Lock, Kentucky |
APR 1999 |
35 pages |
| Authors:
Jose E. Sanchez; Guillermo A. Riveros; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| Hawser load information for tows moored to the downstream guide wall was needed by the U.S. Army Engineer District, Nashville, to aid in the design of the discharge outlet and guard wall for the 1,200-ft-long lock addition proposed at the Kentucky Lock and Dam. The hawser load is simply the pull or tension in the mooring lines when a tow is tied to the wall. Review of the existing literature ... |
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| Ice Events in the St. Louis District. Ice Engineering, Number 20, February 1999 |
FEB 1999 |
5 pages |
| Authors:
Kate White; Nathan D. Mulherin; COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
|
| Rivers in the northern United States, including those within the boundaries of the St. Louis District, are subject to ice events that delay or stop navigation (Fig. 1); damage riverine structures such as locks, dams, bridges, dikes, levees, and wingwalls; cause damage to tows, barges, and mooring/fleeting areas; block hydropower and water supply intakes; cause flooding; and decrease downstream discharge. Roads may be flooded and closed, or bridges weakened or ... |
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| Lighterage Seasickness Parametric Study |
DEC 1998 |
15 pages |
| Authors:
Robert March; Paul Palo; NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA
|
| This report summarizes the results of a study performed to estimate seasickness corresponding to several different proposed configurations associated with the Joint Modular Lighterage System (JMLS). Specifically, the dynamic behavior of different modular barges with a heavy load was modeled in a variety of sea state 3 environments. This study consisted of identifying a single representative wave spectrum, running the SCORES vessel dynamics computer model for a variety of conditions ... |
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| Multiline Tow Cable Assembly Including Swivel and Slip Ring |
12 AUG 1998 |
23 pages |
| Authors:
Michael R. Williams; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| This patent application discloses a multiline tow cable assembly including swivel area components and slip ring components. The swivel area components include a rotor member connected to an external housing, at least one contact member formed within the rotor member and rotatable with the rotor, and first electrical leads connected to the at least one contact member. The slip ring components include a multiline termination member, a stator connected to ... |
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| Barge Strike Explosive Clearance System |
11 AUG 1998 |
|
| Authors:
Robert C. Woodall Jr.; Lynn Haven; Fellpe A. Garcia; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A barge strike system for clearing an obstacle-filled region of water includes a floating barge having at least one hollow region defined therein. The barge is equipped to move under its own power to the obstacle-filled region at various speeds, including speeds in excess of minimum planing speed. Explosive material is contained in the barge's hollow region (s). A plurality of detonators are coupled to a top surface of the ... |
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| Physical Changes Associated with Navigation Traffic on the Illinois and Upper Mississippi Rivers (Appendices) |
JUL 1998 |
642 pages |
| Authors:
Nani G. Bhowmik; David Soong; J. R. Adams; Renjie Xia; Bijoy S. Mazumder; ILLINOIS STATE WATER SURVEY CHAMPAIGN
|
| This report summarizes the investigation conducted by the Illinois State Water Survey on the physical changes associated with the movement of navigation traffic on the Illinois and Upper Mississippi Rivers. This research project was partially sanded by the Environmental Management Technical Center of the U.S. Geological Survey and the U.S. Army Corps of Engineers. Project activities were conducted through the Illinois Department of Natural Resources. ... |
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| Engineering and Design: Hydraulic Design of Shallow Draft Navigation Projects |
30 APR 1998 |
9 pages |
| Authors:
CORPS OF ENGINEERS WASHINGTON DC
|
| This regulation prescribes the policy and design procedures for development of a new or replacement of an existing shallow draft navigation project. Shallow draft navigation refers to commercial barge traffic. Detailed design guidance is contained in the references listed in paragraph 3. |
|
| Zebra Mussel Research Technical Notes. Section 1 - Environmental Testing |
JAN 98 |
5 pages |
| Authors:
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
|
| This is Zebra Mussel Research Technical Notes reports. It contains the issues with different contents on The Zebra Mussel: Biology, Ecology, and Recommended Control Strategies, Larval Monitoring in a Chlorine Treatment Program to Prevent Zebra Mussel Settlement in Hydropower Facilities, Louisville District Initiates a Zebra Mussel Monitoring Program, Hand-Held Sampler for Zebra Mussel Collection, Developing a Protocol to Ensure Environmental Compliance in a Zebra Mussel Control Program, Mussel Filtration Rates ... |
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| Down by the River: A History of the Baton Rouge Riverfront |
1998 |
35 pages |
| Authors:
Ralph Draughton Jr; ARMY ENGINEER DISTRICT NEW ORLEANS LA
|
| This report describes in detail the history of the city of Baton Rouge, Louisiana and its riverfront, from its beginnings in the late 17th century to the present. At present, the Port of Greater Baton Rouge can boast of general cargo facilities; grain facilities; liquid bulk terminals; a barge terminal on the Mississippi river; and, to be completed early in 1997, an inland rivers terminal near the junction of the ... |
|
| Ice Jams in Alaska. Ice Engineering. Number 16, February 1997 |
FEB 1997 |
5 pages |
| Authors:
Heidi J. Eames; Kate White; COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
|
| An ice jam is an accumulation of ice in rivers that restricts flow and can cause destructive floods costly to riverine communities. Freezeup jams occur in early to midwinter when ice first forms in rivers. Breakup jams form in early spring when rising air temperature and/or rain events lead to rapid snowmelt, increases in runoff, and rapid increases in flow discharge. Ice covers break up and the resulting ice floes ... |
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| Amphibious Cargo Beaching (ACB) Lighter Development - Phase I |
OCT 96 |
419 pages |
| Authors:
KVAERNER MASA MARINE INC ANNAPOLIS MD
|
| This report documents a conceptual design effort for the Amphibious Cargo Beaching (ACB) Lighter, a modular barge system which is being developed to replace the Navy Lighter (NL) pontoon causeway system. The ACB Lighter will be rapidly deployed from an auxiliary crane ship and be assembled and operated in sea conditions through sea state three to support Joint Logistics Over the Shore (JLOTS) operations. Results are presented for three major ... |
|
| U.S. Navy Amphibious Cargo Beaching Lighter Module Design and Development - Final Report |
OCT 96 |
98 pages |
| Authors:
NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA
|
| This report documents a conceptual design effort for the Amphibious Cargo Beaching (ACB) Lighter, a modular barge system which is being developed to replace the Navy Lighter (NL) pontoon causeway system. The ACB Lighter will be rapidly deployed from an auxiliary crane ship and be assembled and operated in sea conditions through sea state three to support Joint Logistics Over the Shore (JLOTS) operations. The focus of this study was ... |
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| Return Velocity and Drawdown in Navigable Waterways (Computer Diskette). |
AUG 1996 |
|
| Authors:
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB
|
| File characteristics: Software (1 file); Binary character set. Physical description: 1 computer diskette; 3 1/2 in.; high density; 1.4MB. System requirements: PC compatible; DOS; Quick BASIC4.5. The hard copy report 'Return Velocity and Drawdown in Navigate Waterways is the User's Manual for NAVEFF. An analytical method for estimating return velocity and drawdown is developed based on physical model study data for the Kampsville reach, Illinois River and the Clark's Ferry ... |
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| Return Velocity and Drawdown in Navigable Waterways |
AUG 96 |
102 pages |
| Authors:
Steve Maynord; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB
|
| This study develops techniques for estimating return velocity and drawdown from commercial vessels operating in navigable waterways and compares them to model and prototype data. Confined channel methods are modified to extend their application to large riverine navigation systems. The results are incorporated into the PC program NAVEFF with this report serving as the documentation. This study does not address other navigation effects such as waves or propeller flows shown ... |
|
| Redeye Crossing Reach, Lower Mississippi River. Report 2. Navigation Conditions |
MAR 96 |
191 pages |
| Authors:
Randy A. McCollum; Michelle Thevenot; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB
|
| Redeye Crossing, on the lower Mississippi River between River Miles 223 and 225, has tow traffic from 1 to 49 barges and oceangoing vessels up to 40-ft draft. The presently maintained channel requires approximately 3 million cubic yards of dredging annually to maintain the 40-ft-draft channel through the crossing. The proposed 45-ft-draft channel would require increased dredging without the use of channel training structures. Proposals to construct a series of ... |
|
| Ship Navigation Simulation Study, Southern Branch of the Elizabeth River, Gilmerton and Interstate 64 Bridges, Norfolk, Virginia |
DEC 95 |
284 pages |
| Authors:
Dennis W. Webb; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB
|
| The Southern Branch of the Elizabeth River is located in Norfolk, Portsmouth, and Chesapeake, VA. The existing l25-ft-span Gilmerton Bridges are positioned in the Southern Branch just south of an approximately 90-degree bend in the river. Therefore, inbound (southbound) vessels have very little room to line up with the bridges' fender system. Outbound ships have to turn to port immediately after passing through the bridge span or risk hitting a ... |
|
| Loading Cycles for the Fatigue Reliability Analysis of Miter Gates |
DEC 95 |
93 pages |
| Authors:
Bilal M. Ayyub; Robert C. Patev; Mark P. Kaminskiy; Mary Ann Leggett; BMA ENGINEERING INC DARNESTOWN MD
|
| Miter gates at navigation locks experience loading cycles from emptying and filling of a lock's chamber as they are opened to allow traffic through the locks. Reliability analysis of miter gates at navigation locks requires definition of (a) non-performance modes, (b) loads, (c) structural strength, and (d) methods of reliability analysis. Due to the cyclic loading nature of miter gates, the fatigue of critical details requires examination using reliability methods. ... |
|
| Acoustic Emission on Cofferdam Distress Warning System and Ancillary Acoustic Emission Monitoring; Melvin Price Locks and Dam. Phase 3 |
SEP 95 |
189 pages |
| Authors:
GROUND ENGINEERING INC ST LOUIS MO
|
| A research program was conducted to develop a cofferdam distress warning system and monitor the acoustic emissions generated by the third-phase cofferdam of the Melvin Price Lock and Dam. The purpose of this study was to extend existing understanding of acoustic emission (AE) within large sheet-pile cell stractures to the design, configaration, and operation of a cofferdam Distress Warning System (DWS) capable of automatic operation for an extended period and ... |
|
| Oil Spill Risk Assessment Model and the Ranking of Ports for Oil Spill Vulnerability |
JUN 95 |
106 pages |
| Authors:
Phani K. Raj; Clayton K. Turner; TECHNOLOGY AND MANAGEMENT SYSTEMS INC BURLINGTON MA
|
| The U.S. Coast Guard's Marine Safety Office (MSO) of each port is required to develop contingency plans to respond to oil spills. The contingency plans at present do not use rigorous risk assessment procedures to identify the spectrum of spills that are possible in each port and estimate the frequency of occurrence of different size spills. In order to provide these procedures, there was a need to develop, for use ... |
|
| Technologies for Hopper Dredge Production and Process Monitoring; Laboratory and Field Investigations (Dredging Research Program) |
FEB 95 |
97 pages |
| Authors:
Stephen H. Scott; Jeffrey D. Jorgeson; Monroe B. Savage; Cary B. Cox; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
|
| This Dredging Research Program (DRP) work unit was initiated to investigate methods for monitoring hopper dredge production and operation. Hopper dredging accounts for a significant portion of the total amount of material dredged in the United States. The operating costs for a hopper dredge are significant. The cost may vary from approximately $30,000 to $75,000 per 24 hour day, depending on the size of the dredge and the support requirements. ... |
|
| Development and Verification of Numerical Models for Predicting the Initial Fate of Dredged Material Disposed in Open Water. Report 2. Theoretical Developments and Verification Results |
FEB 95 |
76 pages |
| Authors:
Billy H. Johnson; Moira T. Fong; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
|
| A numerical model called STFATE for computing the short-term fate of dredged material disposed in open water has been developed. STFATE builds upon work of earlier researchers to provide a more realistic simulation of real disposal operations from split-hull barges and multi-bin hopper dredges. New developments allow for multiple-convecting clouds and stripping of solids fluid from those clouds to better represent water column effects. Other developments include the use of ... |
|
| An Analysis of Freshwater Mussels (Unionidae) in the Upper Ohio River Near Huntington, West Virginia: 1993 Studies |
JAN 95 |
78 pages |
| Authors:
Andrew C. Miller; Barry S. Payne; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB
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| A survey to assess community characteristics, density, population demography of dominant species, and the likelihood of finding endangered species of freshwater mussels (Unionidae) was conducted in the upper Ohio River (approximate River Miles (RM) 292 to 284) near Huntington, WV, in July 1993. Data were used to analyze impacts of commercial navigation traffic resulting from increased barge traffic on the Ohio River due to projected increases in economic activities. Data ... |
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| Evaluation of a Coast Guard Marine Portable Inspection Unit (MPIU) |
SEP 94 |
173 pages |
| Authors:
Michael J. Goodwin; Edward F. McClave; MAR INC ROCKVILLE MD
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| This effort represents a second phase to a project that is exploring the concept of employing a portable computer inspection capability for Coast Guard marine inspectors. In the first phase of this effort, a set of general performance requirements was developed based on extensive interviews with field personnel, inspector workshops, and a non-developmental item survey. The second phase of this project, which is the subject of this report, addresses testing ... |
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| Design and Development of Bendway Weirs for the Dogtooth Bend Reach, Mississippi River |
AUG 94 |
104 pages |
| Authors:
David L. Derrick; Thomas J. Pokrefke; Marden B. Boyd; James P. Crutchfield; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB
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| This investigation is one of a series of model studies used to determine the effectiveness of various dike and bendway weir systems proposed for the improvement of several troublesome reaches on the Mississippi River. This report describes and gives results of test concerned with the development of plans for the improvement of the Dogtooth Bend reach of the middle Mississippi River, located 20 miles above the confluence of the Ohio ... |
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