| Evaluation of Passive Systems for the Treatment of Mine Drainage |
MAY 1999 |
234 pages |
| Authors:
Heath C. Roscoe; PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF CIVIL ENGINEERING
|
 | Acid Mine Drainage (AMD) is a serious environmental problem and the focus of a great deal of research. Passive treatment systems associated with wetlands and Anoxic Limestone Drains (ALDs) provide a low-cost, low-maintenance treatment in contrast to continuous chemical metering. The ALD adds alkalinity to the water allowing for a more rapid formation of iron precipitates. The abiotic oxidation ponds associated with these systems are expected to precipitate about 10-20 ... |
|
| Field Testing of a Prototype Heat Stress Monitor: System Performance andApplicability to Commercial Mining in Australia |
APR 1999 |
19 pages |
| Authors:
William T. Matthew; Julio A. Gonzalez; Richard R. Gonzalez; Graham Bates; Cathryn Gazey; CURTIN UNIV OF TECHNOLOGY PERTH (AUSTRALIA) SCHOOL OF PUBLIC HEALTH
|
| Under a Cooperative Research and Development Agreement (CRDA), a prototype environmental Heat Stress Monitor (HSM) originally developed for military use, was evaluated for potential applications as a heat stress management tool in the Australian mining industry. The hand-held electronic HSM combines a thermal strain prediction model with an integrated environmental sensor suite that measures air temperature, humidity, wind speed, and solar radiation, to provide tailored guidance on hourly drinking water ... |
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| Tunnel Closure Experiment, 1997 Test Programme: Core Logging and Laboratory Tests on Diamond Drilled Holes at Jerntoppen |
08 JUN 1998 |
71 pages |
| Authors:
Panayiotis Chryssanthakis; Vidar Kveldsvik; NORWEGIAN GEOTECHNICAL INST OSLO
|
| The Tunnel Closure Experiment 1997 Test Programme included seven tunnel response tests and two tunnel portal tests. The tests were carried out in August 1997 (eight tests) and September 1997 (one test) in AS Sydvaranger's open pit mine at Bjoernevatn, Kirkenes, Norway. Rock cores were collected for each of the tunnel response tests previous to drilling of the large diameter boreholes for bomb emplacements. The rock cores have been analyzed ... |
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| Environmental Health & Safety Plan. Quality Program Plan, Part I. Galena Landfill Closure Galena, Alaska |
APR 1998 |
130 pages |
| Authors:
ADC/CLEARWATER JOINT VENTURE ANCHORAGE AK
|
| This Site-Specific Health and Safety Plan (SSHP) was prepared by the Ahtna/Clearwater Environmental Joint Venture (JV) for the Galena Landfill project. This plan will be used in conjunction with the Corporate Health and Safety Program, the Work Plan, the Project Sampling and Analysis Plan (SAP), the Quality Assurance Program Plan (QAPP) and various other submittals to guide its field personnel and contract laboratories in safe execution of activities associated with ... |
|
| Construction Productivity Advancement Research (CPAR) Program |
APR 1998 |
198 pages |
| Authors:
Kimberlie Staheli; David Bennett; Hugh W. O'Donnell; Timothy J. Hurley; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB
|
| Early methods of installing pipelines and utilities across rivers and streams involved excavation of trenches. After the placement of the pipeline, the trenches were backfilled to protect the pipeline from hazards. These early dredged crossings were generally sited at the channel crossing of the thalweg between bends of the river. Here the river is generally a wide, shallow rectangle. This location is chosen due to its hydraulic stability and the ... |
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| Analyses of Near-Field and Near-Regional Signals from the Black Thunder Mine |
FEB 1998 |
52 pages |
| Authors:
Terrance G. Barker; Keith L. McLaughlin; MAXWELL TECHNOLOGIES INC SAN DIEGO CA
|
| In this report we present analyses of seismic data recorded at the Black Thunder coal strip mine in the Powder River Basin of Wyoming. The data (collected by Stump et al, 1996) are a set of recordings at distances of a few kilometers from mining activity at that mine. Our objective was to determine whether these near-field data revealed features of quarry blasting that were ... |
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| Oreshoot Zoning in the Carlin-Type Betze Orebody, Goldstrike Mine, Eureka County, Nevada |
1998 |
60 pages |
| Authors:
Stephen G. Peters; Gregory C. Ferdock; Maria B. Woltsekhowskaya; Robert Leonardson; Jerry Rahn; DEPARTMENT OF THE INTERIOR WASHINGTON DC
|
| Field and laboratory investigations of the giant Betze gold orebody, the largest Carlin-type deposit known, in the north-central Carlin trend, Nevada document that the orebody is composed of individual high-grade oreshoots that contain different geologic, mineralogic, and textural characteristics. The orebody is typical of many structurally controlled Carlin-type deposits, and is hosted in thin-bedded, impure carbonate or limy siltstone, breccia bodies, and intrusive or calc-silicate rock. Most ores in the ... |
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| Regional Small-Event Identification Using Seismic Networks and Arrays |
09 DEC 1997 |
49 pages |
| Authors:
Michael A. Hedlin; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA INST OF GEOPHYSICS AND PLANETARY PHYSICS
|
| This report reviews our AFTAC funded research over the last two years. The principal objective of our research was to investigate the utility of time varying spectral estimates obtained from regional seismic records for distinguishing mining events from single explosions and earthquakes. A second goal of this research program was the exploration of additional small-event discrimination techniques which might be merged with the time-frequency method. The emphasis was on acoustic ... |
|
| A Wavelet Analysis of Mining Explosions: Observations Relating to Verification of a Comprehensive Nuclear Test Ban |
17 NOV 97 |
34 pages |
| Authors:
Michael Hedlin; Delrdre Wendel; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA INST OF GEOPHYSICS AND PLANETARY PHYSICS
|
| International nuclear testing threshold treaties, under effect in some form or another since 1983, have rallied scientists to devise ways of monitoring nuclear weapons tests. The UN General Assembly's adoption at a Comprehensive Test Ban Treaty in 1996 heightens the need to distinguish nuclear events not only from earthquakes, but also from man-made mining explosions. The treaty requires a monitoring threshold potentially as low as magnitude mg=2.5, which translates to ... |
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| Application of the Hankel Transform Technique to the Analysis of TL3 leg 1 of the 1993 ACT II Data |
10 NOV 97 |
|
| Authors:
James Doutt; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
 | An experiment was conducted near borehole 6010 off the New Jersey coast as part of the DARPA ACT II experiment in 1993. Several of the tow tracks of the sound source coincided with tracks from the 1988 Hudson Canyon experiment. For this experiment major differences from 1988 were the accuracy and sampling of the range data, the available sound source which dictated the use of pulses as opposed to CW, ... |
|
| Energy Security in a Time of Plenty |
OCT 1997 |
7 pages |
| Authors:
Patrick Clawson; NATIONAL DEFENSE UNIV WASHINGTON DC INST FOR NATIONAL STRATEGIC STUDIES
|
| Energy supply trends are good for Western security. Dependence on the volatile Persian Gulf may increase only slightly, as additional supplies come from stable pro-Western areas, such as Norway and Latin America. Also, the cost of producing oil is dropping thanks to the information revolution. In spite of East Asia's rapid growth, world oil demand is unlikely to grow each year by more than 1.5-2.0 million barrels per day (mbd). ... |
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| Geophysical Investigation at Mustard Gas Burial Ground, Naval Surface Warfare Center, Crane Division, Crane, Indiana |
JUN 97 |
30 pages |
| Authors:
Jose L. Llopis; Keith J. Sjostrom; William L. Murphy; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB
|
| A geophysical investigation was conducted at the Mustard Gas Burial Ground (MGBG) at the Naval Surface Warfare Center, Crane Division, Crane, IN. The MGBG, an approximately 2-acre area, is a former Solid Waste Management Unit. The objective of the investigation was to detect and delineate anomalies indicating the locations of buried structures, objects, or disturbed zones associated with past hazardous waste burial at the MGBG. The locations of these objects ... |
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| Faulting of Gas-Hydrate-Bearing Marine Sediments - Contribution to Permeability |
MAY 1997 |
|
| Authors:
William Dillon; W. S. Holbrook; Rebecca Drury; Joseph Gettrust; Deborah Hutchinson; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS MARINE GEOSCIENCES DIV
|
| Extensive faulting is observed in sediments containing high concentrations of methane hydrate off the southeastern coast of the United States. Faults that break the sea floor show evidence of both extension and shortening; mud diapirs are also present. The zone of recent faulting apparently extends from the ocean floor down to the base of gas-hydrate stability. We infer that the faulting resulted from excess pore pressure in ... |
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| MacDill Air Force Base: National Register Eligibility Recommendations for Sites 8HI50 and 8HI5656 |
FEB 97 |
217 pages |
| Authors:
Philip R. Gerrell; GEO-MARINE INC PLANO TX
|
| This report presents the results of archeological test excavations conducted at two prehistoric sites (8H150 and 8Hl5656) located within MacDill Air Force Base (AFB), Tampa, Florida. These investigations were conducted by Geo-Marine, Inc., under contract with the U.S. Army Corps of Engineers, Fort Worth District. The purpose of the investigations was to assess the eligibility of each site for inclusion in the National Register of Historic Places (NRHP). The excavation ... |
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| Computational Modeling of Underground Tunnels in Intact and Jointed Rock |
JAN 97 |
59 pages |
| Authors:
Yvonne D. Murray; APTEK INC COLORADO SPRINGS CO
|
| Computational models were developed to predict the dynamic response and damage to reinforced tunnels in rock subjected to ground shock from nuclear weapons. This effort is part of the Underground Technology Program. The finite element calculations were performed with the DYNA3D code using a comprehensive smooth-cap model for intact rock and a nonlinear slideline model for rock joints. Calculated tunnel closures, and free-field stress and velocity histories, compare well with ... |
|
| Identifying and Separating from a Sequence of Mine Tremors Series of Events Generated by a Single Process |
SEP 96 |
254 pages |
| Authors:
Stanislaw Lasocki; ACADEMY OF MINING AND METALLURGY KRAKOW (POLAND)
|
| Generation of induced seismicity in underground mines is controlled by various local and mine wide factors, and the seismic series are usually composed of events of different origins. Although it is well known that seismicity in mines is a multimodal phenomenon, it is not easy to identify its various components. A set of statistical methods to study complexity of seismic series is proposed. These are the descriptive statistics analysis to ... |
|
| Micro-local, Non-linear, Resolution Analysis of Generalised Radon Transform Inversions in Anisotropic Media |
JUL 96 |
30 pages |
| Authors:
Maarten V. De Hoop; Norman Bleistein; COLORADO SCHOOL OF MINES GOLDEN CENTER FOR WAVE PHENOMENA
|
| The resolution analysis of generalized Radon Transform (GRT) inversion of seismic data is carried out in general anisotropic media. The GRT inversion formula is derived from the ray-Born approximation of the wave field for volume scatterers. However, by considering scattering surfaces in the resolution analysis, rather than parameter perturbations, we show that the inversion provides a reflectivity map and reflection/transmission coefficients as functions of scattering angles and azimuths. Those coefficients ... |
|
| Decision Maker's Guide to Issues Effecting Post-Closure Reutilization of Municiple Solid Waste Landfills |
96 |
97 pages |
| Authors:
Robert W. Ganowski; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Municipal solid waste landfills serve as society's primary waste handling mechanism and have promising potential to continue as a community asset well after their capacity has been reached. This guide aims to familiarize the reader with landfills and the issues that can effect their potential after closure. Landfills have evolved into technologically advanced facilities that are designed, constructed, and operated with strict environmental controls. When a landfill reaches capacity, it ... |
|
| Source Parameters and Source Mechanism of Seismic Events Occurring in Sequences at a Polish Copper Mine and South African Gold Mine: Search for Possible Time Variations |
15 NOV 95 |
185 pages |
| Authors:
Slavomir J. Gibowicz; B. Domanski; P. Wiejacz; POLISH ACADEMY OF SCIENCES WARSAW INSTOF GEOPHYSICS
|
| This report results from a contract tasking Polish Academy of Sciences as follows: Investigate the swarm-like behavior of seismic events from Polish and South African mines. The investigation conducted under this contract is focused on a search for possible time variations of source parameters and mechanism of seismic events occurring in sequences at Polkowice copper mine in Poland and Western Deep Levels (WDL) gold mine in South Africa. The results ... |
|
| Proceedings of the Annual Seismic Research Symposium on Monitoring a Comprehensive Test Ban Treaty (17th) Held in Scottsdale, Arizona on 12-15 September, 1995 |
14 AUG 95 |
1071 pages |
| Authors:
James F. Lewkowicz; Jeanne M. McPhetres; Delaine T. Reiter; PHILLIPS LAB HANSCOM AFB MA
|
| Limitation Code: APPROVED FOR PUBLIC RELEASE DOCUMENT PARTIALLY ILLEGIBLE |
|
| Monitoring Research in the Context of CTBT Negotiations and Networks, |
14 AUG 1995 |
5 pages |
| Authors:
Robert Blandford; AIR FORCE TECHNICAL APPLICATIONS CENTER PATRICK AFB FL
|
| Since the last Phillips Laboratory conference there has been substantial progress at the Geneva Negotiations in the United Nations Conference on Disarmament on the subject of which types of detecting networks will be implemented as part of an international monitoring system (IMS), used to monitor a CTBT. At the present time the United States is supporting the deployment of 4 networks, seismic, radio nuclide, hydroacoustic, and infrasonic. In addition the ... |
|
| Discrimination of Earthquakes, Explosions, and Mining Tremors Using the Empirical Green's Function Method, |
14 AUG 1995 |
10 pages |
| Authors:
Y. Li; W. Rodi; M. N. Toksoez; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF EARTH ATMOSPHERIC AND PLANETARY SCIENCES
|
| Using the empirical Green's function (EGF) method, we have estimated source time functions for earthquakes, industrial blasts, nuclear explosions, and mining tremors covering the magnitude range 0.9 - 6.6. The results show that, for events with magnitudes less than 2.5 or greater than 4.5, the time duration of the source time function can discriminate earthquakes from explosions. For large magnitude events source duration is longer for earthquakes than explosions, but ... |
|
| An Overview of Seismic Discrimination Issues Relevant to CTBT Monitoring, |
14 AUG 1995 |
1 pages |
| Authors:
J. R. Murphy; MAXWELL LABS INC LA JOLLA CA S-CUBED DIV
|
| The Conference on Disarmament of the U.N. General Assembly is currently working to draft a Comprehensive Test Ban Treaty (CTBT) which will prohibit all nuclear testing. Because seismology remains as the primary monitoring technique for verifying treaty compliance with respect to underground nuclear tests, it is appropriate at this time to once again review the current state of understanding regarding the seismic identification of such explosions. It is evident that ... |
|
| Broadband Seismic Recordings of Mining Explosions and Earthquakes in South America, |
14 AUG 1995 |
7 pages |
| Authors:
Susan L. Beck; Terry C. Wallace; ARIZONA UNIV TUCSON DEPT OF GEOSCIENCES
|
| S/P ratios have shown great promise as discriminants for explosions and earthquakes recorded at regional distances. Spectrograms, or the frequency-time displays of seismograms, have been used to separate explosion populations into those which are single-shot or multiple-hole instantaneous explosions and those which are ripple-fired explosions. However, despite the promise of these discriminants, there are problems of transportability. The character of regional phases is extremely sensitive to differences in propagation paths, ... |
|
| Physical Mechanisms of Quarry Blast Sources, |
14 AUG 1995 |
3 pages |
| Authors:
T. G. Barker; K. L. McLaughlin; J. L. Stevens; MAXWELL LABS INC LA JOLLA CA S-CUBED DIV
|
| Quarry mining practices vary considerably within the United States and worldwide, the variations reflecting the materials that are to mined, the means for removing and processing the materials, operator preferences, safety considerations and constraints imposed by nearby population and structures. Models of quarry blasts that can be used to develop efficient and robust methods for discriminating quarry blasts from other source must reflect the varied practices. Development of models for ... |
|
| Seismic Characteristics and Mechanisms of Rockbursts, |
14 AUG 1995 |
10 pages |
| Authors:
T. J. Bennett; M. E. Marshall; K. L. McLaughlin; B. W. Barker; J. R. Murphy; S-CUBED RESTON VA
|
| Rockbursts and related mining-induced seismicity present several interesting problems for seismic monitoring of potential underground nuclear explosion tests. Such events occur in mining areas throughout the world and may be quite frequent at levels currently of interest for CTBT. The shallow focal depths of rockbursts prevent their discrimination from nuclear tests on the basis of depth identification. Many rockbursts also appear to be inefficient in excitation of long-period surface waves ... |
|
| Statistics on Mine Blasting and Blasting Signals in Different Regions: Preliminary Results from Russia and Kazakhstan, |
14 AUG 1995 |
10 pages |
| Authors:
Vitaly I. Khalturin; Tatyana G. Rautian; Paul G. Richards; LAMONT-DOHERTY EARTH OBSERVATORY PALISADES NY
|
| We have recently begun a project to document the numbers of mine blasts that will be detected teleseismically, and at regional distances, by seismograph networks used to monitor compliance with a Comprehensive Test Ban Treaty. We plan to study blasting in the United States, in countries of the former Soviet Union, and in Australia, Canada, China, and Korea. Knowledge of mine blast statistics is needed in order to plan efforts ... |
|
| The LANL/LLNL/AFTAC Black Thunder Mine Regional Mining Blast Experiment, |
14 AUG 1995 |
10 pages |
| Authors:
D. C. Pearson; B. W. Stump; D. F. Baker; C. L. Edwards; LOS ALAMOS NATIONAL LAB NM
|
| Cast blasting operations associated with near surface coal recovery provide relatively large explosive sources that generate regional seismograms of interest in monitoring a CTBT. This paper describes preliminary results of a series of experiments currently being conducted at the Black Thunder Coal Mine in northeast Wyoming as part of the DOE CTBT Research and Development Program. These experiments are intended to provide an integrated set of near-source and regional seismic ... |
|
| A Study of Mine Blasts and Rockbursts in the Pacific Northwest, |
14 AUG 1995 |
9 pages |
| Authors:
Alan Rohay; Shannon Goodwin; BATTELLE PACIFIC NORTHWEST LABS RICHLAND WA
|
| We have collected regional broad-band and densely-spaced short-period data for nearly 40 mining explosions from the Centralia mine, from two rockbursts in northern Idaho, and from several other explosions in the Columbia River Basalt and elsewhere in Washington state. These recordings, for events with magnitude 2.5 or larger, are being analyzed to determine the characteristics of the seismic signals that identify these events as explosions or rockbursts. The type of ... |
|
| Seismic Monitoring of Rockbursts and Underground Blastings for Assessing the Stability of Deep Mine Workings at Kolar Gold Fields, |
14 AUG 1995 |
11 pages |
| Authors:
C. Srinivasan; NATIONAL INST OF ROCK MECHANICS GOLDFIELD (INDIA)
|
| Rockbursts (RBs) are known to occur in and around deep mines like Kolar Gold Fields (KGF) in South India, since the beginning of this century. A rockburst is characterised by a sudden collapse of excavated region because of void created during the mining operation. At large depths the problem of RB is quite severe which is a major hazard not only to mining workers, but also to property, both on ... |
|
| Practical Observations of US Mining Practices and Implications for CTBT Monitoring, |
14 AUG 1995 |
10 pages |
| Authors:
Brian W. Stump; LOS ALAMOS NATIONAL LAB NM
|
| Man made and man induced seismic events associated with surface and underground mining operations produce seismic signals that might have to be identified when monitoring a Comprehensive Test Ban Treaty (CTBT). The importance of these sources to the monitoring process depend on the size of the seismic signal they generate and the degree of similarity these signals have to that expected from a contained nuclear explosion. Under the CTBT Research ... |
|
| Simultaneous Inversion for Detailed Source and Structure Parameters Using Quarry Blast Data Recorded in Eastern Kazakhstan, |
14 AUG 1995 |
11 pages |
| Authors:
Danny J. Harvey; COLORADO UNIV AT BOULDER
|
| We have completed a study aimed at the development of a full waveform joint structure-source inversion method. We used differential seismograms to represent the linearized structure effects and perturbed source terms to represent the source effects. We found it desirable to include unbalanced force terms, in addition to an arbitrary symmetric moment tensor, to represent the source. We also found it necessary to use exact expressions for computing the differential ... |
|
| The LANL Source Geometry Experiment, |
14 AUG 1995 |
10 pages |
| Authors:
B. W. Stump; D. C. Pearson; C. L. Edwards; D. F. Baker; LOS ALAMOS NATIONAL LAB NM
|
| The Source Geometry Experiment was successfully conducted over the time period 17 April to 7 May 95. Recording in the mine was conducted 24 April to 4 May 95. Five single sources were instrumented that included four cylindrical charges at different burdens (distance from the free face) and a pseudo-spherical charge. Nine production shots conducted during the two week visit to the mine were also recorded. Included in these production ... |
|
| Source Finiteness, Signal Decorrelation, Spectral Scalloping and Identification of Multiple Delayed Explosions, |
14 AUG 1995 |
10 pages |
| Authors:
Zoltan A. Der; Douglas R. Baumgardt; ENSCO INC SPRINGFIELD VA
|
| Our results show that a generalized model that includes propagation delays and signal decorrelation can reproduce numerous observed features in the spectral modulation patterns of regional phases from quarry blasts. Analyses of spectra associated with various regional arrivals of the same event revealed differences in modulation strength and apparent shifts in modulation patterns. These may be associated with source finiteness, propagation delays and signal decorrelation. Potentially these features can be ... |
|
| Study of Rockbursts in the Khibiny Massif |
AUG 1995 |
71 pages |
| Authors:
Elena O. Kremenetskaya; V. E. Asming; KOLA REGIONAL SEISMOLOGICAL CENTER APATITY (RUSSIA)
|
| In the last several years there has been a great increase of seismicity in the Khibiny Massif. This began to manifest itself after large volumes of rocks had been extracted from a high-stress environment in connection with the mining activity for the Khibiny apatite deposits. In particular, the increase in the seismicity has been significant after 1980. During this same time period the annual ore excavation at the Khibiny mines ... |
|
| Little Dell Lake Foundation Report |
APR 95 |
841 pages |
| Authors:
ARMY ENGINEER DISTRICT SACRAMENTO CA
|
| ER No. 1110-1-1801, dated 1 April 1983, multiple letter SPDVG(3 (GG) 65-34, dated 8 August 1965 and SPK OM 335-2-2, dated 1 July 1978, outline the need and scope of foundation reports and authorize their preparation for major Civil Works projects. This report insures the preservation for future use of a complete record of foundation conditions encountered during construction and of methods used to adapt structures to those conditions. It ... |
|
| Installation Restoration Program. Site Investigation Report. Revision 4. Volume 2: Appendix B through Appendix E. 155th Air Refueling Group, Nebraska Air National Guard, Lincoln Municipal Airport, Lincoln, Nebraska |
APR 95 |
621 pages |
| Authors:
MARTIN MARIETTA ENERGY SYSTEMS INC OAK RIDGE TN
|
| This is Site investigation Report, Volume 2 Appendix B through E. A Site Investigation was performed at the 155th Air Refueling Group at Lincoln, NE to evaluate six areas of suspected contamination identified during a Preliminary Assessment. The sites that this investigation were conducted at are: Site 1 - Fuel Farm, POL Storage Area Site 2 - West End of Old Oak Creek, Site 3 - Former Tank Cleaning/Hazardous Waste ... |
|
| Seawater Hydraulic Rock Drill Impact Mechanism Model Validation |
JAN 95 |
44 pages |
| Authors:
John P. Kunsemiller; Bruce W. Farber; NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA
|
| The Naval Facilities Engineering Service Center (NFESC) has developed and evaluated a computer model of the single poppet-kicker port linear impact mechanism used in the seawater hydraulic rock drill. The project objective was to identify hydraulic and dynamic elements influencing impact mechanism operation. A goal of this investigation was to determine whether or not computer modeling of the impact mechanism for the seawater hydraulic rock drill would lead to an ... |
|
| Central Heating Plant Economic Evaluation Program. Volume 4. Coalfield Properties Information Data Management Program |
JAN 95 |
270 pages |
| Authors:
Mike C. Lin; Ralph Moshage; Gary Schanche; Christopher Blazek; Richard Biederman; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
|
| Public Law has directed the Department of Defense (DoD) to rehabilitate and convert its existing domestic power plants to burn more coal. Other Federal legislation requires DoD to use the most economic fuel for any new heating system. This five-volume report discusses the Central Heating Plant Economic Evaluation Program (CHPECON), a computer program for screening potential new and retrofit steam/power generation facilities. Volume 1 is the Technical Reference. Volume 2 ... |
|
| Analysis of the Near Source and Regional Seismic Records from Mine Explosions in North Caucasus. Discrimination between Explosions and Regional Earthquakes |
1995 |
46 pages |
| Authors:
Igor Chernobye; Mikhail Zhizhin; Irina Gabsatarova; Dmitry Mechrushev; INSTITUTE OF PHYSICS OF THE EARTH OBNINSK (RUSSIA)
|
| This report results from a contract tasking Institute of Physics of the Earth as follows: Implement a simple portable instrumentation system to document single shot delayed shots at a mine as described in the attached proposal. The data will be used in physical interpretation of regional waveforms. |
|
| Subsurface Site Characterization - Proceedings of Research Needs Workshop |
DEC 94 |
126 pages |
| Authors:
M. K. Corcoran; T. H. Grau; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
|
| A workshop was conducted to promote dialogue between scientists and law enforcement agents while developing meaningful research direction in the area of clandestine tunnel detection. Needs were addressed within the scope of realistic product expectation and constraints. It became apparent that a combined search strategy employing the capabilities of scientists with law enforcement experience can accelerate development of low-profile technology focused on subsurface detection of clandestine tunnels. Scientific presentations outlined ... |
|
| Preliminary Assessment of Seismic CTBT/NPT Monitoring Capability |
30 NOV 94 |
52 pages |
| Authors:
Mark D. Fisk; Henry L. Gray; Gary D. McCartor; MISSION RESEARCH CORP SANTA BARBARA CA
|
| Our recent work focuses on assessing seismic event identification performance using a method we developed for outlier detection. This is motivated by the lack of seismic calibration data for underground nuclear explosions in most regions and the difficulty associated with transporting regional discriminants. The procedure may be fully automated to flag events warranting special attention and to test all appropriate assumptions to ensure validity. The method also allows control of ... |
|
| Environmental Assessment and Finding of No Significant Impact (FONSI) of the Underground Technology Program, Rodgers Hollows, Fort Knox, Kentucky |
OCT 94 |
95 pages |
| Authors:
D. W. Murrell; J. S. Shore; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS STRUCTURES LAB
|
| An environmental assessment was necessary to investigate the potential impact of the Underground Technology Program on the environment. The existing test site environment as reviewed, alternatives to the proposed action were considered, and environmental consequences of the proposed action were analyzed. Environmental consequences included effects of construction activities, excavations, and test explosion phenomena on human health and safety, structures, biota, geology, air and water quality, local ecology, socioeconomic factors, and ... |
|
| Improving Site Characterization for Rock Dredging using a Drilling Parameter Recorder and the Point Load Test |
SEP 94 |
54 pages |
| Authors:
Hardy J. Smith; ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
|
| The approach to the work was to test and further develop two existing technologies; First, the concept of instrumenting an exploration drill rig and relating its operational parameters (such as bit pressure, rotation rate, advance rate, etc.) to characteristics of the rock being drilled was investigated. The applicability of such a system for drilling typical coastal deposits was to be investigated and demonstrated. Second, the point load test for rock ... |
|
| Archeological Investigations on 571 Prehistoric Sites at Fort Hood, Bell and Coryell Counties, Texas |
AUG 94 |
642 pages |
| Authors:
W. N. Trierweiler; MARIAH ASSOCIATES INC AUSTIN TX
|
| This report presents the results and conclusions of archeological investigations on 571 prehistoric sites at Fort Hood in Bell and Coryell counties, Texas. The primary goal of the work was to evaluate each site with respect to its eligibility for inclusion in the National Register of Historic Places (NRHP). A secondary goal was to assess site boundaries. Between August 1991 and June 1993 Mariah Associates, Inc. (Mariah) evaluated 571 prehistoric ... |
|
| Recycling Propellants and Explosives into the Commercial Explosive Industry |
Aug-1994 |
7 pages |
| Authors:
Paul L Miller; ALLIANT TECHSYSTEMS INC HOPKINS MN
|
| As part of environmentally safe recycling of unwanted ordnance, the commercial blasting industry is a significant potential user of recovered energetic materials. Their industry utilizes significant quantities of explosive materials on an annual basis and can easily become an even larger consumer of military energetics if their requirements are properly addressed. This paper identifies their concerns and offers methods for satisfying them. |
|
| Can Re-Use of Demil Explosives and Propellants in Commercial Blasting Be Made Environmentally Acceptable? |
Aug 1994 |
15 pages |
| Authors:
Per-Anders Persson; NEW MEXICO INST OF MINING AND TECHNOLOGY SOCORRO ENERGETIC MATERIAL RESEARCH AND TEST CENTER
|
| Some modern commercial blasting agents such as ANFO are of an oxygen balanced composition, i.e. their composition is such that there is just enough oxygen (mostly from ammonium nitrate) to oxidize all the hydrogen in the composition to water, all the carbon to carbon dioxide, and any aluminum to alumina, Al2O3. Such blasting agents in ideal detonation give a minimum of polluting and toxic reaction product gases, such as CO, ... |
|
| Calculational Support for the No Excuses KLOTZ Club Test at Linchburg Mine |
Aug 1994 |
14 pages |
| Authors:
Lynn W Kennedy; Charles E Needham; Kenneth D Schneider; MAXWELL LABS INC ALBUQUERQUE NM
|
| High resolution calculations have been performed to simulate the detonation and subsequent blast propagation of 37.3 kilograms/(cubic meter) (TNT equivalent) of Comp B in an underground complex of chambers and tunnels like that of the Linchburg Mine near Magdalena, New Mexico. Tests were performed in this complex by the U.S. Army Water-ways Experiment Station (WES) in support of a joint US/ROK program and also for the KLOTZ Club. The calculations ... |
|
| Spectral Analysis and Moment Tensor Inversion of Seismic Events Induced in Polish Coal Mines: Search for Non-Shearing Components |
28 FEB 94 |
230 pages |
| Authors:
S. J. Gibowicz; J. Niewiadomski; P. Wiejacz; G. Sagan; W. Zuberek; POLISH ACADEMY OF SCIENCES WARSAW
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| The investigations conducted under this contract are focused on a research for non-shearing components of the source mechanism of seismic events induced in Polish coal mines. Such seismic events are expected to occur in close vicinity to the mining faces, where favorable conditions for generation of tensile failures or shear failures with tensile components are present. Simultaneous application of spectral analysis of seismic waves and moment tensor inversion was used ... |
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| Missile Maintenance Career Ladder |
JAN 94 |
76 pages |
| Authors:
AIR FORCE OCCUPATIONAL MEASUREMENT SQUADRON RANDOLPH AFB TX
|
| This report presents the results of a detailed Air Force Occupational Survey of the Missile maintenance career ladder (AFSC 2MOX2A, formerly 411X1A). |
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Mining Engineering
