Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 22 for “"Mining Induced"”.
-
Inversion of seismic source parameters for weak mining-induced and natural earthquakes
… scales. In the first application, dealing with mining induced seismicity, the source parameters determination is addressed at a local scale, with source-sensor distance of less than 3 km. In this context, weak seismicity corresponds to event below magnitude MW 2.0, which are rarely target of …
-
A study of building response and damage due to mining-induced ground movements
Several methods have been developed to predict mining-induced ground movements. Some of these methods, such as the profile and influence functions, have been used successfully in a number of applications. Prediction methods, however, do not address the response of surface buildings and structures …
-
Towards a meaningful engagement approach to mining-induced displacements in South Africa: a legal comparative perspective
… it might have been fair to argue that because mining activity is intrinsic to the country's economic growth and development, then everything else negative about mining should just be excused as a 'necessary evil' or 'acceptable collateral damage'. But not now. One of the negative impacts of …
-
Parameters affecting interferometric coherence and implications for long-term operational monitoring of mining-induced surface deformation
Surface deformation due to underground mining poses risks to health and safety as well as infrastructure and the environment. Consequently, the need for long-term operational monitoring systems exists. Traditional field-based measurements are point-based meaning that the full extent of deforming …
-
Towards a meaningful engagement approach to mining-induced displacements in South Africa: a legal comparative perspective
… it might have been fair to argue that because mining activity is intrinsic to the country's economic growth and development, then everything else negative about mining should just be excused as a 'necessary evil' or 'acceptable collateral damage'. But not now. One of the negative impacts of …
-
Responsible resettlement: implementing the corporate responsibility to respect human rights in the context of mining induced displacement and resettlement
Mining-induced displacement and resettlement is a high-risk activity that has an inherent potential to impact the human rights of those affected. However, current models of international best practice in resettlement, based on guidelines developed by International Financial Institutions, do not …
-
Quantifying changes in macroinvertebrate community composition, biomass, and emergence in response to mining-induced salinization in central Appalachian streams
… diversity declines in response to mining-induced salinization and resulting changes to ecosystem processes remain largely unknown, such as how the availability and movement of macroinvertebrate biomass is altered in stream food webs. However, taxa observed are dependent upon …
-
Evaluating the role of flow and specific conductivity on stream metabolism across a mining-induced salinity gradient in the Appalachian Coalfield
… in the region. Mountaintop removal/valley fill mining techniques in Appalachia result in the burial of headwater streams and mobilization of ions, specifically SO42-, Ca, and Mg into waters, raising specific conductivity (SpC). Organismal responses to salinization have been well documented in …
-
The effects of oxygen deficiency, hydrogen sulphide and turbidity on the rock lobster, Jasus lalandii : implications for diamond dredge-mining in Namibia
… Dredger) to be employed for offshore diamond mining along the Namibian south coast. The aims of this study were to assess (a) the potential mining-induced impacts on oxygen and turbidity, and (b) the behavioural responses of the rock lobster Jasus lalandii, to decreased oxygen, elevated …
-
Passive Seismic Tomography and Seismicity Hazard Analysis in Deep Underground Mines
… and evaluate the stability of a rock mass in mining excavations. Lab measurements give evidence that velocities of seismic wave propagations increase in high stress areas of rock samples. It is well known that closing effects of cracks under compressive pressures tend to increase the effective …
-
Apparent Stress Estimates of Seismic Events Associated with Underground Mining Operations in Sedimentary Rock Units: Implications for Improving Underground Roof Collapse Warning Systems
We analyze recordings of seismic events induced by underground mining operations at the Moonee Colliery, located in Australia, and at the Springfield Pike Limestone Quarry, located in the United States. The data were recorded underground in the vicinity of active mining operations and were …
-
Seismic Wave Velocity Variations in Deep Hard Rock Underground Mines by Passive Seismic Tomography
Mining engineers are tasked with ensuring that underground mining operations be both safe and efficiently productive. Induced stress in deep mines has a significant role in the stability of the underground mines and hence the safety of the mining workplace because the behavior of the rock mass …
-
Quantitative Comparison of Seismic Velocity Tomography With Seismic Activity Around a Deep Coal Longwall Panel
Mining induced seismicity can lead to bumps which cause problems at many mines within the United States and around the world. This seismicity, often referred to as bumps or bursts, can result in injuries, fatalities, and expensive capital damage and production interruptions. There are many factors …
-
An exploration of lived experiences of 11 resettled families in Mazabuka district, Zambia, by a Nickel mine project
Mining-induced displacements and resettlements are a global phenomenon. However, how these are done and the implications that they have on the displaced and resettled are shaped by micro, local level dynamics. These include existing regulations, socio-economic and cultural situations of communities …
-
Analysis of the dynamic behaviour of the hangingwall beam during a seismic event
… a separate beam supporting only its selfweight. Mining-induced near vertical shear fractures divide the hangingwall beam into distinct blocks of relatively intact material. The objective of this study is to investigate the response of the isolated hangingwall beam during a seismic event. The …
-
Salt in the Wound: Trophic Mismatches Emerge Between Macroinvertebrate Secondary Production and Basal Food Resources Along a Salinity Gradient in Central Appalachian Headwaters
Mountaintop removal mining practices in central Appalachia have directly altered headwater stream biotic communities through elevated ions (e.g. Cl-, Ca2+, SO42-) that increase salinity, as measured by specific conductance (SC). It has been long understood that benthic macroinvertebrate …
-
Illuminating a neglected population: epidemiological and clinical features of silicosis and tuberculosis among former gold miners from Lesotho
… by these conditions. The large South African mining industry, especially gold mining, is known as the amplifier of this triple epidemic of silicosis, TB and HIV. Furthermore, ex-mineworkers from South African mines have a higher mortality rate than active mineworkers and the general …
-
Evaluation of strata conditions and performance of support systems of the Emerald Shaft Gold Mine in Gauteng Province of South Africa
… and concentration of horizontal virgin and mining-induced stresses pose significant threats to both safety and production, highlighting the need for effective strata control measures. This study aimed to evaluate the strata conditions and performance of support systems of the Emerald Shaft …
-
A Study of Mine-Related Seismicity in a Deep Longwall Coal Mine
… is to examine the processes responsible for induced seismicity. A seismic network consisting of five three-component short-period seismometers located above the mine recorded the seismic data. The events discussed here occurred from March 1, 2009 until April 7, 2011 during the mining of three …
-
Automated seismic event location by waveform coherence analysis
… different real datasets. A first one related to mining induced microseismicity in a coal mine in the northern Germany (chapter 3). In this case we successfully located 391 microseismic event with magnitude range between 0.5 and 2.0 Ml. To further validate the location method I compared the …
Page 1 of 2