Seismic monitoring in mines ebook

Seismic data analysis techniques in hydrocarbon exploration ebook by enwenode. Seismic monitoring in mines design, operation, tricks and t raps hudyma and brummer 6 sensors too close to stopes, attenuation and blinding of seismic sensors is more likely. One important question associated with seismic monitoring in coal mines is whether the approach taken in applying seismic monitoring to burstprone hardrock mines is the same approach that should be taken for bumpprone deep coal mines. Puerto rico seismic network, university of puerto rico. Data analysis and interpretation palabora mine caving process as revealed by induced seismicity by s. All underground mines experience some degree of seismicity. Seismic sensors are distributed around or throughout the volume of interest. Todays earthquakes in utah map of earthquakes today. Mining3 will design and implement the system and offer training to mine geotechnical staff to use and interpret the data. As shown in figure 1a, seismic monitoring installations are typically configured using twisted pair cable, fiber optics, radio telemetry, or a hybrid combination of the above.

The gsi units monitor up to three seismic signals from a single triaxial geophone or three uniaxial geophones. Seismic monitoring using geophones aims at predicting roof fall by measuring microseismic events caused by movements within a rock mass. To implement inmine seismic monitoring techniques in coal mines to evaluate and demonstrate potential mine safety benefits of this technology. S n glazer this book presents the results of seismic data analysis and interpretation based on nearly one million seismic events. Seismology and slope stability in open pit mines dr r a lynch. Microseismic monitoring is the only technique to provide 3d data to geotechnical engineers at underground mines and has become a standard tool in the deeper metalliferous and coal mines around the world. The monitoring system must accurately record the amplitude and timing of any significant ground motion over a wide range of amplitudes, frequencies and durations, and assemble the records at a central point for processing, within a reasonably short time so that action may be taken in response and at a high. Since the signals can be very low amplitude peak ground motions of 1 ms. These benefits include use of the resulting data for improved ground control hazard management, rock mass modeling, and mine and support design practices in deep coal environments. Microseismic science grew out of earthquake seismology and focuses on micro earthquakes i. Statebystate list of mining regions summarizes what we know about mining districts from which we have recorded explosions, planned collapses, and rockbursts.

An introduction to mining seismology, volume 55 1st edition. The introduction of modern digital seismic systems to mines and progress in the theory and methods of quantitative seismology have enabled the implementation of realtime seismic monitoring as a management tool, quantifying rockmass response to mining and achieving the first tangible results with prediction. Microseismic monitoring an overview sciencedirect topics. This site is like a library, use search box in the widget to get ebook that you want. Timelapse monitoring of internal erosion in earthen dams and levees using ambient seismic noise t. Microseismic monitoring is the passive observation of very smallscale earthquakes which occur in the ground as a result of human activities or industrial processes such as mining, hydraulic fracturing, enhanced oil recovery, geothermal operations or underground gas storage. Visit earthquake monitoring network upgrade blog to read about some of the activities. Routine seismic monitoring in mines was introduced over 30 years ago with two. This is a jumbo sized image of the iris seismic monitor web page it is an image only. Department of health and human services, centers for disease control and prevention, national institute for occupational safety and health, dhhs niosh publication no. Damage due to seismicity has been observed in various mines around the globe. Seismic monitor recent earthquakes on a world map and.

Trimble monitoring solutions gnss seismic monitoring. Microseismic monitoring is becoming a common tool with wide and successful applications in mining engineering 1. The response of a geophone is proportional to the ground velocity both p and s waves. Jul, 2011 not directly monitoring, but there is obviously a responsibility to maintain a safe working environment and to mitigate hazards. Routine seismic monitoring in mines was introduced over 30 years ago with two main objectives in mind. In this paper, an engineering approach to seismic risk management is described. Pdf seismic monitoring in mines download online video. Click download or read online button to get seismic monitoring in mines book now. The microseismic continuous monitoring approach is a bespoke service offered to mines with slope stability issues. Seismic monitoring in mines ebook by 9789400915398. It does not contain any earthquake or station links. Microseismic monitoring for slope stability mining3. The department of mines and geology dmg is an arm of the government of nepal that began microseismic monitoring in 1978 with the installation of a shortperiod vertical seismic station.

Seismic monitoring networks the treaty calls for two global seismic monitoring networks. Use features like bookmarks, note taking and highlighting while reading mine seismology. Remote monitoring of mine seismicity and earthquakes using. A seismic monitoring network has been installed in western. Evidence used in identifying routine mining seismicity explains the evidence that is used to identify routine explosions or planned collapses, and we note that in some areas a few natural earthquakes or unplanned rockbursts may be listed in the catalogs of routine mining seismicity. Seismic characterization of coalmining seismicity in utah for ctbt. Using wireless sensor networks for seismic monitoring abstract. Stanford libraries official online search tool for books, media, journals, databases, government documents and more. This work focus on using passive noisebased seismic methods to image and monitor the rock mass in underground mines. This book presents the outcome of the mass mining technology 2 project that aimed to optimize the monitoring and management of the caving process. An introduction to mining seismology download ebook pdf. Identification and statistical analysis of impulselike patterns of. Australian earthquake engineering society 2010 conference perth, western australia routine micro seismic monitoring in mines aleksander j. Recent advances in seismic monitoring technology at.

Monitoring coal mine seismicity with an automated wireless. Palabora mine caving process as revealed by induced seismicity kindle edition by glazer, s. Nov 21, 2009 at many mines, the risk associated with large seismic events and rockburst damage must be managed to ensure the safety of mine workers and minimise production losses. Mitigating the risk of rockbursts in the deep hard rock mines. Help earthquake headlines last 30 days earthquakes special quakes plate tectonics education links. U of u seismograph stations reducing the risk from earthquakes in utah through research, education, and public service. The stations of the primary seismic network send data continuously in real time to the idc and will be utilized most extensively. Click download or read online button to get an introduction to mining seismology book now. Seismic monitoring in mines design, operation, tricks and traps. Pdf microseismic monitoring of underground coal mines. Metacoustics pty ltd seismic and microseismic monitoring. Proactive versus reactive seismic monitoring in mines. Data resulting from seismic monitoring are used to distinguish between an underground nuclear explosion and the numerous natural and manmade seismic events that occur every day, such as earthquakes and mining explosions.

Recent advances in seismic monitoring technology at canadian. Monitoring helps us understand the level of earthquake risk in uk and to design accordingly. For very large screens check out the earthquake channel display. Chapter 2 the evolution of seismic monitoring systems at. This reference book also draws on seismic monitoring in mines mendecki, 1997 and on a. We are an independent private research organisation focused on developing methodologies, technologies and services for monitoring and modelling the seismic rock mass response to mining. Seismic monitoring an overview sciencedirect topics. Our microseismic monitoring systems have been deployed in hundreds of underground and openpit mines around the world and we continue to invest in developing new and improved microseismic solutions for mining applications. The main results show that it is possible to gain benefit from the diffuse ambient seismic field in mines to 1 image the rock mass and 2 monitor its. The lihir open pit mine in papua new guinea is located inside an old volcano where geothermal activity is strongly present. More enigmatic from the monitoring perspective are manmade or induced seismic signals resulting from 1 applications using conventional explosives for mining.

To reduce load times, the list is not rendered for large queries. Microseismic monitoring of mines is a technique routinely applied at over 300 mines around the world. This seismic data is regularly transferred to imss offices for processing and quality control according to strict procedures. Deep mining 07 proceedings of the fourth international seminar on deep and high stress mining. Sudden earth tremors seismic events and the accompanying ground falls constitute a major threat to underground mining operations in most underground mines in zambia. Passive seismic monitoring was carried out at the mine to investigate whether the geothermal activities could be detected and located using microseismic techniques in a mining.

Read chapter 2 the role of seismic monitoring in decisionmaking. Snieder earthen dams and levees are prone to progressive failure through internal erosion of their structure. Geophones and accelerometers piezoelectric and forcebalance are currently supported, although geophones are more commonly used in the lowstressdrop environment of most coal mines. Information on seismic monitoring and mining seismicity in the wpbc region. For over 20 years, esg has provided microseismic monitoring solutions to the international mining industry. The institute of mine seismology ims is the worlds leading provider of microseismic monitoring technology to mines.

Ortlepp integration of deterministic modelling with seismic monitoring for the assessment of. Apr 27, 2016 pdf seismic monitoring in mines download online. The seimograms from some stations may not be viewable on the web although we continue to acquire and process data from them. Innovative technology leading to increased deeplevel mining. The characteristic seismic signatures for the different caving stages are identified and the resulting impacts on underground safety are described. Explanation of catalog listings explains the parameters listed in routine mining seismicity in the united states. Regional and in mine monitoring networks were found to be on a par with those installed in seismicallyactive mining districts elsewhere in the world, although measures to improve the quality and continuity of seismic monitoring were recommended, particularly when mines change ownership. Malovichko institute of mine seismology november 2010 abstract routine seismic monitoring in mines enables the quanti. The seismic event is automatically processed, and seismic source parameters including the location, time, radiated seismic energy and coseismic inelastic deformation are automatically calculated. Seismic monitoring in mines design, operation, tricks and t raps hudyma and brummer 5 in practice, it is common to run analogue signals far more than 30 metr es.

Passive seismic monitoring of minescale geothermal. We provide an overview of the current status of seismic monitoring instrumentation employed in canadian underground mines. Geophones are based on an inertial mass proof mass suspended from a spring. Objectives of the monitoring are typically rescue, prevention, control, warnings which include identification of precursors for goafs and for large seismic events which may be associated with.

International symposium on stability of rock slopes in open pit mining and civil engineering richard lynch page 378 2. Open pit mining mining methods hydraulic gassification opencast mining open cut mining surface or strip mining final pit, weather land degradation by mining. Schematic diagrams of seismic monitoring a instrumentation and b software. Coal mine safety applications of seismic monitoring cdc. The hvo seismic network configuration in 1934, with three stations located in the kilauea summit caldera region, one in hilo, and. The number of stations was gradually increased to create the national seismological network, which comprised 21 shortperiod seismic stations in 1998, with an. Abandoned mine earthquake survey ridgecrest earthquake area abandoned mine 3 duration. Underground mine survey ridgecrest earthquake area. We can also use earthquakes to image the earth under our feet. Rockbursts and seismicity in mines dynamic rock mass response to mining fifth international symposium on rockburst and seismicity in mines proceedings johannesburg 2000 technical editors dr. Pdf seismic imaging and monitoring in mines with ambient. Australian earthquake engineering society 2010 conference. Trimble 4d control monitoring software is the perfect tool to manage small, medium and large monitoring projects.

In 2010, the ims acquired the businesses and assets of iss international and iss pacific. Improved seismic monitoringimproved decisionmaking, describes and assesses the varie. Mitigating the risk of rockbursts in the deep hard rock. Based on several case studies, we outline how passive seismic monitoring techniques are being used to evaluate fractures and stress. Colorado usa in the vicinity of three underground coal mines to. As mines go deeper, do you think regulations will have to catch up in terms of having more direct seismic monitoring requirements. Seismic data analysis techniques in hydrocarbon exploration kobo. N download it once and read it on your kindle device, pc, phones or tablets. An engineering approach to seismic risk management in. Even small earthquakes generate lots of interest, so there is a need for accurate information to allay concerns. The metacoustics team has a number of high precision tilt meters which allow the monitoring of tilt from earth tides, micro seismic activity in and around the monitored structure and seismic data on a world wide scale is recorded and analysed. In the same way as the ref tek smhr, it also monitors seismicity induced by the mining operation and natural seismic activity. Targeted location of microseismic events based on a 3d. Purchase an introduction to mining seismology, volume 55 1st edition.

University of memphis ceri lamont cooperative seismic network lcsn mit global seismology laboratory. Mitigating the risk of rockbursts in the deep hard rock mines of south africa. The development of the technology and the appropriate theory of quantitative seismology allows applications far beyond the aims of the first seismic monitoring in mines when hypocentre location. Seismic waveforms seismograms at a given station for explosions at the same mine tend to be similar from eventtoevent, both in the relative times and amplitudes of different seismic phases within each seismogram and.

The scope of this article covers seismic sources, monitoring and analysis methods of seismic events and mine design in the context of seismicity management in underground mines. It is the only technique capable otime 3d data on how the rock f providing real mass is responding to mining, and the field has matured considerably over the past 25 years for example, see proceedings of the rockbursts and seismicity in mines. The objective of seismic monitoring is to detect and locate underground nuclear explosions. Seismic monitoring in mines download ebook pdf, epub, tuebl. This book offers an indepth analysis and interpretation methods applicable to mineinduced seismicity. The canadian national seismograph network cnsn is undergoing equipment upgrades over the next few years. Fifteen years of the seismic monitoring at verkhnekamskoye deposit. Time of day mine explosions tend to be set off during local daytime hours, even if the mines are operating 24 hours a day. A j mendecki the capability of modern seismic systems to monitor incremental coseismic stress and strain within a rockmass makes the early detection of instabilities a real possibility. Australian earthquake engineering society 2010 conference perth, western australia routine microseismic monitoring in mines aleksander j.

Chapter 2 the evolution of seismic monitoring systems at the. This scalable solution processes, visualizes, alarms on and reports on all kinds of monitoring data. The quality of the air in underground mines is a challenging issue. The evolution of seismic monitoring systems at the hawaiian volcano observatory 69 to more routinely determine and publish earthquake locations from the data recorded at hvos seismographic stations. U of u seismograph stations reducing the risk from. Outbursts of hot water and steam into the mining areas were a major safety concern.

Proactive versus reactive seismic monitoring in mines results of a seismic monitoring survey. Sizing up against seismic activity mining technology. Seismic monitoring in mines design, operation, tricks and t raps hudyma and brummer 2 of events recorded larger than local magnitude 1 is about. Langston abstract the national institute for occupational safety and health and the stillwater mining company worked cooperatively with the montana bureau of mines and geology to develop a system. Regional and inmine monitoring networks were found to be on a par with those installed in seismicallyactive mining districts elsewhere in the world, although measures to improve the quality and continuity of seismic monitoring were. Seismic monitoring strategies for deep longwall coal mines.