Chantelle A Rebello, Sara J Couperthwaite, Graeme J Millar and Les A Dawes, Understanding coal seam gas associated water, regulations and , Dobróka In‐Mine Geoelectric Methods for Detection of Tectonic Disturbances , disturbed coal seams and around a coal mine roadway, Geophysical ,
TEM Detection of the Distribution of Coal Mine Waterlogged ,
TEM Detection of the Distribution of Coal Mine Waterlogged Section Zhang Jizhong Heilongjiang University of Science and Technology, College of Mining Engineering, Harbin Heilongjiang 150022 e-mail: [email protected] Liu Xunhao, Cao Jiangchao, Wang Zhichao Heilongjiang University of Science and Technology, College of Mining Engineering, Harbin Heilongjiang 150022 ABSTRACT Based on large ,
Detection of Abandoned Underground Coal Mines by ,
Acid drainage produced by abandoned coal mines continues to cause serious water pollution problems Without knowing the exact location of the concealed openings and the extent of the mine, source abatement techniques are virtually impossible Drilling is the only known method for accurately determining the location and extent of the mine voids, but this is extremely expensive
Detection and delineation of coal mine fire in Jharia coal ,
Detection and delineation of coal mine ﬁre in Jharia coal ﬁeld, India using geophysical approach: A case study Rakesh Kumar Mishra1,PNSRoy2,3,4,*, Virendra Kumar Singh1 and Jai Krishna Pandey1 1CSIR-Central Institute of Mining and Fuel Research (CIMFR), Dhanbad, India
Characteristic of geological anomaly detected by combined ,
comprehensive information of geological anomaly, and the combined geophysical detection technology can get the optimum result 21 Deep mine laneway exploration geophysical conditions For the comprehensive advanced detection in the mine laneway, it solves mainly the interface problems of coal and rock, rock fracture zone, and so on
Coal Mine Outburst – Mining Science and Technology
Coal Mine Outburst Home / Archive by category: Coal Mine Outburst , has been explored as a stress relief mechanism to prevent outbursts The water pressure fractures the coal in advance of the face and provides for slow relaxation of stress through lateral movement enhanced by the presence of [,] Read More , Geophysical detection of .
Problems in Void Detection in Coal Mine Water Hazards ,
Hydraulically, a rubble-filled cavity is essentially as transmissive to water as an open mine vo Thus, the problem of detecting a mine void with confidence is extremely compounded Downloadable PDF: Problems in Void Detection in Coal Mine Water Hazards
Industry Investment NSW - NSW Resources and Energy
The MDG 1032 Guideline for the prevention, early detection and suppression of fires in coal mines was distributed to industry for consultation and comment through the Coal Safety Advisory Committee Industry & Investment NSW has a review time set for each Guideline that it publish This can be brought forward if required
In operation with CDNR-MLRD, the Bureau of Mines selected the Canon Imperial abandoned coal mine site, located approximately 3 miles southwest of Florence, CO, to test an integrated geophysical approach to abandoned mine detection These mine workings were developed during the mid 1800's, with the main sloping entry following the dip of the .
PARAMETER ESTIMATION AND FAULT DETECTION BY THREE ,
PARAMETER ESTIMATION AND FAULT DETECTION BY THREE‐COMPONENT SEISMIC AND GEOELECTRICAL SURVEYS IN A COAL MINE * M BREITZKE , Gyulai and M Dobróka In‐Mine Geoelectric Methods for Detection of , , Modelling of Rayleigh‐type seam waves in disturbed coal seams and around a coal mine roadway, Geophysical .
Detecting Underground Mine Voids Using Complex Geophysical ,
In July 2006, the National Energy Technology Laboratory in collaboration with Department of Geology and Planetary Science, University of Pittsburgh conducted complex ground geophysical surveys of an area known to be underlain by shallow coal min Geophysical methods including electromagnetic induction, DC resistivity and seismic reflection .
Detection of abandoned underground coal mines by ,
Get this from a library! Detection of abandoned underground coal mines by geophysical methods [Wilson Fisher, Jr; HRB-Singer, Inc Environmental Sciences Branch; United Stat Environmental Protection Agency; Pennsylvania Department of Environmental Resourc] -- Acid drainage produced by abandoned coal mines continues to cause serious water pollution problems
Detection of Abandoned Underground Coal Mines by ,
----- DETECTION OF ABANDONED UNDERGROUND COAL MINES BY GEOPHYSICAL METHODS by HRB-Singer, Incorporated Environmental Sciences Branch Science Park State College, Pennsylvania 16801 for the ENVIRONMENTAL PROTECTION AGENCY and the PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL RESOURCES Project 14010 EHN April 1971 For salo by the Superintendent of ,
Hazard detection and comprehensive control technologies ,
Hazard detection and comprehensive control technologies of the integrated resource coal mine goafs in China Wen LI Mine Safety Technology Branch of China Coal Research Institute, Beijing , China, 100013 State Key Laboratory of Coal Mining and Clean Utilization(China Coal Research Institute), Beijing, China, 100013
Geophysical Technologies for Detecting Underground Coal Mine Voids, Lexington, KY, July 28-30, 2003 APPLICATIONS OF THE ELECTRICAL RESISTIVITY METHOD FOR DETECTION OF UNDERGROUND MINE WORKINGS by William J Johnson – D’Appolonia, Monroeville, PA Introduction The need to understand the location of abandoned workings has recently been high-lighted by the failure of the Martin County Coal .
Review of Geophysical Exploration On Mined-out Areas and ,
Mar 01, 2019· The accurate and effective detection of underground goafs and their water abundance is the key to ensure the safety of mine production On the basis of the relevant research, this paper defines different goaf types from the perspective of geophysical exploration and discusses the geophysical prerequisites for goaf detection
GEOPHYSICAL METHODS FOR COAL FIRE DETECTION AND MONITORING American Geophysical Union, Fall Meeting 2009, abstract #NS44A-03 Within the framework of the Sino-German research initiative "Innovative technologies for exploration, extinction and monitoring of coal fires in Northern China" a number of different geophysical methods have been applied to determine .
Coal fires occur in operating coal mines, abandoned coal mines and waste coal pil They sometimes start because of a nearby blaze, but they can also ignite through spontaneous combustion: certain minerals in the coal, such as sulfides and pyrites, can oxidize and in ,
Detection of Underground Voids in Ohio by Use of ,
Detection of Underground Voids in Ohio by Use of Geophysical Methods By Jens Munk and Rodney A Sheets US GEOLOGICAL SURVEY Water-Resources Investigations Report 97-4221 Prepared in cooperation with the OHIO DEPARTMENT OF TRANSPORTATION and the US DEPARTMENT OF TRANSPORTATION Columbus, Ohio 1997
Geophysical Technologies for Detecting Underground Coal Mine Voids, Lexington, KY, July 28-30, 2003 5 In contrast to the coal, the modeling strongly defines the water-flooded mine openings A problem with the interpretation of the voids is that it is difficult to determine the thick-
GEOPHYSICAL VOID DETECTION DEMONSTRATIONS By: Kanaan Hanna, Bart Hoekstra, Jim Pfeiffer, & Brandy Uphouse , – Known abandoned coal mine adjacent to an active UG room-and-pillar mine, Georgetown, IL 8 , *Sonar mapping can only be used in a borehole that has intersected a water-filled void in the mine ¾Performance Evaluation
Abandoned Mine Voids Detection Presentation Focus Geophysical Manual Part I Geophysical , Voids DetectionVoids Detection Part I – Geophysical Manual 9Gravity 9GPR 9Resistivity 9Cross-hole Seismic Tomography , *Sonar mapping can only be used in a borehole that has intersected a water-filled void in the mine Performance Evaluation of .
Overview on the application of geophysics in coal mining ,
Jul 30, 2013· While coal mining in the UK and West Germany is now much reduced, these geophysical techniques have been taken up elsewhere in countries such as China, Australia and the USA This paper provides an overview on the current status of the geophysical effort in coal mining
Mining Geophysics Back to Servic Geophysical methods have great potential to solve various mining related problems Due to their non-destructive nature and quick application, using these methods results in huge savings in terms of time and money
3 Technologies in Exploration, Mining, and Processing ,
The life cycle of mining begins with exploration, continues through production, and ends with closure and postmining land use New technologies can benefit the mining industry and consumers in all stages of this life cycle This report does not include downstream processing, such as smelting of .
GEOPHYSICAL VOID DETECTION DEMONSTRATIONS Kanaan Hanna, Bart Hoekstra, Jim Pfeiffer and Brandy Uphouse ZAPATAENGINEERING, Blackhawk Division ABSTRACT This paper describes the results of geophysical field demonstrations conducted at a known abandoned underground coal mine, eastern Illinois This investigational program, in cooperation
Electrical resistivity of coal-bearing rocks under high ,
At present, most commonly used geophysical methods in the detection of coal fires are the magnetic method and the self-potential method due to their low cost and high efficiency These two methods have been used to delineate many coal fires in China (Zhang 2004; Shao et al 2014)
the electrical resistance Mine voids in coal mines are usually encountered as resistiv-ity lows because of the presence of acidic mine water Other Methods, such as magnetics and ground penetrating radar have been used for detecting subsurface cavities, but can be subject to precision, interference, or depth